achines or engines in general and engine plants in general and steam engines (F01)

F01            achines or engines in general; engine plants in general; steam engines(14877)

Last stage of steam turbine // 2614316
FIELD: machine engineering.SUBSTANCE: blades are made with a selection of moisture and steam inlet channels, communicating with through slots selection of moisture and steam inlet. The blades are divided into two groups: one group of blades disposed at the bottom of the diaphragm and the most remote from the connector, included in the nozzle array sector with a central angle of 120º-180º, and another group of the remaining blades. The annular chamber in every part of the rim of the diaphragm seals the inlet chamber is divided into steam and water sampling chamber. By the steam inlet chamber, the steam-receiving box is connected with steam supply pipes, which are installed in the throttle pressure regulators, and the moisture sampling chamber communicates with the holes in the rim, in which the throttling members are mounted. In the body of the diaphragm, the wet-receiving slots are made.EFFECT: proposed design of the blades of both groups and the presence of various elements dripping can improve efficiency, which increases the efficiency of the stage and the overall efficiency of the steam turbine, reducing the risk of increased wet-steam erosion of rotor blades.3 cl, 5 dwg

Housing with edges for axial turbine machine compressor // 2614303
FIELD: machine building.SUBSTANCE: present invention relates to an outer housing of a composite material for an axial compressor of a turbine machine; at the same time, the housing usually contains a round wall with the matrix and fibrous stiffener. The housing (28) contains a round wall (32) with the inner surface (40), which has a continuous curvature on the circumference of the wall (32). The wall contains flat edges (42), which are made level with the inner surface of the curved wall. The edges (42) are arranged in circular rows to let the annular rows of stator blades be placed on them. The edges (42) are made as flat discs to support the blades for optimizing the position of the blades and, at the same time, to reduce the stress concentration in the areas of platform/wall cooperation.EFFECT: invention makes it possible to reduce the stress concentration between the wall of the housing and the blade platform, increases the accuracy of the blade's orientation, facilitates the regulation of the chord of the blades' orientation or blades' angle.21 cl, 6 dwg

Axial turbine machine stator blades retaining ring and axial turbomachine // 2614302
FIELD: turbo-machines.SUBSTANCE: group of inventions relates to axial turbine machine low pressure compressor stator. Stator comprises circular row of stator blades 26, having radial ends, passing through inner casing 28 holes 36, and containing radial fixing slots 38. Slots 38 have conicity formed by hooks 44. Stator comprises ring 30 for fixation of blades 26 on casing 28. Ring 30 is bent along circumference for its installation in fixing slots 38 and has shape of strip with arc-shaped lateral cross-section, which is in contact with cones and rests against them so, that ring 30 was retained inside slots 38. Casing 28 comprises abraded material 32 circular layer, which surrounds ring so, that to block ring 30 arched shape curvature in order to prevent disengagement of its contact with slots 38 cones.EFFECT: group of inventions is aimed at improvement of fixation between blade and ring with arc-shaped lateral cross-section in axial turbomachine, as well as at increasing of stator with blades service life.24 cl, 4 dwg

Steam turbine // 2614298
FIELD: heat-and-power engineering.SUBSTANCE: invention relates to heat-and-power engineering, particularly to steam turbines of low power. Proposed steam turbine comprises a housing with a horizontal connector, a fixed on the shaft disc with jet working blades installed in one line perpendicular to the cylindrical surface of the disc and forming rims, two diaphragms, one of which is installed before the jet working blades and comprises guide vanes and sealings to make inlets, and the other diaphragm is installed after the jet working blades and comprises sealings, which form outlets, rotary boxes to vary the working medium motion direction installed over the entire disc circumference above the jet working blades onto the sealings, which form the inlet and the outlet openings, covering the inlet and the outlet openings, a sealings unit arranged between the housing and the shaft and consisting of complete sealings and a device to feed and discharge the working medium. Invention ensures small sizes and low metal consumption of the turbine, as well as actuation of almost the whole enthalpy drop of the working medium (down to 0.03 kg/cm2), promotes reducing power losses, sharp reduction of leaks of the working medium for much higher efficiency of the steam turbine. Turbine has a larger range of RPM, since it is not sensitive to changes in parameters of the steam.EFFECT: proposed is a steam turbine.3 cl, 2 dwg
ethod of blades forgings manufacturing from titanium alloys // 2614294
FIELD: metallurgy.SUBSTANCE: forgings manufacturing method from titanium alloys includes extrusion of billet under isothermal conditions at the same temperature of heating the billet and die and subsequent isothermal forging of the extruded billet. The extrusion and isothermal forging is performed at the heating temperature of the die and billet 800-830 °C±40 °C at average strain rate not more than 0.3 mm/s.EFFECT: reduce of alloy deformation resistance and increase of dimensional stability of dies, manufacturing of blade forgings with a fine-grained structure.1 dwg,1 ex

Rotor shaft bearing of low-pressure compressor of turbojet engine (versions), casing of rotor shaft rear bearing, rotor shaft component, polyfunctional external tightening component of rotor shaft, connection component of rotor shaft, casing of bearing of rotor shaft rear bearing // 2614029
FIELD: engines and pumps.SUBSTANCE: group of inventions refers to the area of production and operation of gas turbine engines. The rotor shaft bearing of the low-pressure compressor is located in an intermediate casing of the engine and contains a ball bearing, which is performed thrust and radial, dividing the shaft bearing to stator and rotor parts. The stator part from its internal part is performed conjointly to the external ring of the ball bearing, and on its external perimeter, the stator part is secured in the intermediate casing of the engine and equipped with cover supports of labyrinth seals. The rotor part contains a trunnion of a drum-disk constituent of the rotor shaft detachably connected to a cylinder constituent of the rotor shaft, by means of which the rotor part is rested on the internal ring of the ball bearing, as well as contains the polyfunctional external tightening component in the form of a circular cylindrical nut and a connection component in the form of a hollow screw. The rotor and stator parts of the shaft bearing are in the oil medium common to them both.EFFECT: group of inventions allows adapting the low-pressure compressor as a part of the engine to more sensitive mode of external air current supply, as well as to intense operation in stationary conditions of ground functioning.20 cl, 7 dwg

Support of shaft rotor of low-pressure compressor of gas turbine engine (versions), body of shaft support and body of ball-bearing rotor shaft support // 2614020
FIELD: mechanical engineering.SUBSTANCE: low-pressure compressor rotor shaft bearing is located in the intermediate casing of the engine and contains the embodiment of the ball bearing, dividing the support into the stator and rotor parts. The stator portion of the inner side is formed integrally with the outer ring of the ball bearing, and the outer perimeter is secured to the motor housing and the intermediate holder is provided with a labyrinth seal caps. Rotary part includes a pin of the reel disc component of the rotor shaft, which is detachably connected to the cylindrical part of the rotor shaft, through which the rotor part is supported on the inner ring of the ball bearing, and also contains a polyfunctional external coupling element in the form of circular cylindrical nut and the connecting element has a hollow bolt shape. The rotor and stator of the support are in the oil environment, which is usual for them. The support housing is equipped with additional holes for the oil change and removal of oil if necessary.EFFECT: invention allows to adapt the low-pressure compressor, a part of the engine to be more sensitive to external mode proceeds airflow intensive work in fixed ground operation conditions.13 cl, 3 dwg

Rotor shaft bearing of low-pressure compressor of turbojet engine (versions), cylinder constituent of rotor shaft, external tightening component of rotor shaft // 2614018
FIELD: engines and pumps.SUBSTANCE: invention refers to the area aircraft engine construction. The rear bearing of the rotor shaft of the low-pressure compressor of the turbojet engine is performed angularly contact and contains coupled drum-disk and cylinder constituents of the rotor shaft, as well as a ball bearing dividing the bearing to stator and rotor parts. The stator part includes a bearing casing performed conjointly with the ball bearing casing in the form of a conical diaphragm detachably connected with the ball bearing flanges and the intermediate engine casing. An internal strong ring is performed for detachable connection with the bracelet sealing casing and ring carriers of labyrinth sealing lids. The rotor part of the bearing includes conjointly performed bottom part of the conical diaphragm of the drum-ring constituent merging into a trunnion of the rotor shaft of the low-pressure compressor detachably connected with the cylinder constituent of the shaft by a hollow cap crew. A multiridge ring element of the labyrinth sealing, the contact hub of the bracelet sealing, and the oil-control ring, as well as the internal ring of the ball-bearing pressed against a support collar of the cylinder constituent of the shaft by the external tightening component with a ring end beam with the formation of an open collector for gathering and supply of lubricating and cooling fluid to rolling bodies of the ball bearing, to the oil-control ring, and to the contact hub of the bracelet sealing via channels in the external surface of the cylinder constituent of the rotor shaft, are installed on the cylinder constituent of the rotor shaft.EFFECT: invention allows increasing durability of the rotor shaft bearing of the low-pressure compressor, improving operation capabilities of lubricating and cooling system of the rear bearing, and increasing the performance factor of the bearing and operation life of the compressor at whole.20 cl, 2 dwg

Rotor shaft bearing of low-pressure compressor of turbojet engine (versions), sealing spool of rotor shaft bearing, rotor shaft bearing block, contact hub of rotor shaft bracelet sealing, oil-control ring of rotor shaft // 2614017
FIELD: engines and pumps.SUBSTANCE: invention refers to the area of aircraft engine construction. The rear bearing of the rotor shaft of the low-pressure compressor of the turbojet engine is performed angularly contact and contains coupled drum-disk and cylinder constituents of the rotor shaft, as well as a ball bearing dividing the bearing to stator and rotor parts. The stator part includes a bearing casing performed conjointly with the ball bearing casing in the form of a conical diaphragm detachably connected with the ball bearing flanges and the intermediate engine casing. An internal strong ring is performed for detachable connection with the bracelet sealing casing and ring carriers of labyrinth sealing lids. The rotor part of the bearing includes conjointly performed bottom part of the conical diaphragm of the drum-ring constituent merging into a trunnion of the rotor shaft of the low-pressure compressor detachably connected with the cylinder constituent of the shaft by a hollow cap crew. A multiridge ring element of the labyrinth sealing, the contact hub of the bracelet sealing, and the oil-control ring, as well as the internal ring of the ball-bearing pressed against a support collar of the cylinder constituent of the shaft by the external tightening component with a ring end beam with the formation of an open collector for gathering and supply of lubricating and cooling fluid to rolling bodies of the ball bearing, to the oil-control ring, and to the contact hub of the bracelet sealing via channels in the external surface of the cylinder constituent of the rotor shaft, are installed on the cylinder constituent of the rotor shaft. The contact hub of the bracelet sealing is performed with an oil-return channel of a cooling system of the bearing. The contact hub and the oil-control ring form channels for two successive counter-currently directed flows of an exhaust duct for lubricating and cooling fluid.EFFECT: invention allows increasing durability of the rotor shaft bearing of the low-pressure compressor, improving operation capabilities of lubricating and cooling system of the rear bearing, and increasing the performance factor of the bearing and operation life of the compressor at whole.19 cl, 5 dwg

System and method of compressing carbon dioxide // 2613789
FIELD: power engineering.SUBSTANCE: invention relates to power engineering. Carbon dioxide compression system comprises compressor stage arranged in series, for serial compression of gaseous flow containing carbon dioxide. Between at least some of series-arranged compressor stages are there are inter-stage heat exchangers for removal of waste heat from compressed gas flow and transferring said heat into a power conversion unit, wherein at least a portion of waste heat is recovered and converted into mechanical energy.EFFECT: higher efficiency of compression of carbon dioxide.21 cl, 7 dwg

Supplied to internal combustion engine supercharging air cooler fan drive controlling device and method // 2613475
FIELD: engines and pumps.SUBSTANCE: invention relates to a device and to supplied to internal combustion engine supercharging air cooler fan drive controlling method. Control device has fan drive controlling control device, in which control device is made with possibility of anticipatory fan drive controlling depending on engine parameters, and/or ambient temperature and/or ambient air density.EFFECT: technical result is reduction of fan drive noise and reduced power consumption.11 cl, 2 dwg

Control device for internal combustion engine // 2613362
FIELD: engines and pumps.SUBSTANCE: invention refers to the control device for an internal combustion engine, particularly, to troubleshooting. The control device for an internal combustion engine with an air-fuel ratio gauge and a control unit of supplied electric potential to the air-fuel ratio gauge. The device performs control of a fuel supply cut-off for stopping fuel supply into the combustion chamber and troubleshooting control for the purpose of failure diagnostics in the air-fuel ratio gauge based on a current output signal of the air-fuel ratio gauge after completion of control of the fuel supply cut-off. The air-fuel ratio gauge is performed so that its output current increases, when the determined air-fuel ratio of exhaust gases increases and the maximum value of the output current increases, when electric potential supplied to the air-fuel ratio gauge increases. The control unit of supplied electric potential makes electric potential supplied to the air-fuel ratio gauge equal to that of the fuel supply cut-off and different to normal electric potential, which is supplied, when the control of the fuel supply cut-off is not performed, during performing of control of the fuel supply cut-off, and until completion of troubleshooting control after completion of control of the fuel supply cut-off, and changes electric potential supplied to the air-fuel ratio gauge from electric potential of the fuel supply cut-off to normal one after completion of troubleshooting control.EFFECT: invention allows controlling wear troubleshooting for diagnostics of operation performance reduction of the air-fuel ratio gauge.13 cl, 13 dwg

Gas turbine engine axial flow turbine // 2613104
FIELD: engines and pumps.SUBSTANCE: axial flow turbine of the gas turbine engine includes the outer housing with installed in it fixed blades and overrotor inserts, forming with the housing at least one pressurization cavity, connected to the cooling air supply system, the rotor with rotor blades having a profile portion limited by the concave and convex surfaces. At that the overrotor insert in its projection is perpendicular to the working blade, made in the form of a parallelogram, which two parallel sides perpendicular to the axis of the turbine rotor, have the length of 0.3…1.1 of the maximum distance between the concave surfaces of the rotor blades in their plane of rotation. The other two sides of the overrotor insert projection are inclined from the turbine rotor axis at the angle 30…80° toward the rotor blades rotation.EFFECT: invention allows to provide small clearances at all modes, considering the error of the parts manufacture, the difference of the thermal expansions of parts and the eccentricity of the turbine rotor, while maintaining the low wear of rotor blades end faces and overrotor inserts, thus increasing the operation time of the turbine with maximum efficiency and power.2 cl, 4 dwg

Rotary piston engine // 2613012
FIELD: engines and pumps.SUBSTANCE: in the rotor-piston internal combustion engine, in cross-section, rotor 2 is a Reuleaux triangle and located eccentrically in a cylindrical cavity of stator 1. In the tops of rotor 2 in the grooves, U-shaped rectangular pistons 3, 4, 5 are placed. Pistons 3, 4, 5 are made with longitudinal slots. Wear resistant inserts are placed in the tops of pistons 3, 4, 5, 6. The volumes between the inner surface of pistons 3, 4, 5, rotor 2 and side covers form unchanged total oil volume where constant pressure is maintained by oil pumping. Nozzle 17 is placed in stator 1 in the second half of the third quarter of stator 1 if we start counting from the vertical symmetry axis of the working hole of stator 1 clockwise. Plugs 8, 9 are placed in the first and the fourth quarters of stator 1. Exhaust holes are placed in the second half of the second quarter of stator 1. Holes for injecting compressed air are placed in the first half of the third quarter or on the vertical symmetry axis of stator 1. The hole for oil injection into the internal volumes of the pistons is made in the end cap and placed in the first half of the third quarter of stator 1.EFFECT: increased technological design of the rotary-piston engine, increased engine reliability and durability.2 cl, 7 dwg

Stir plate and internal combustion engine // 2612980
FIELD: engines and pumps.SUBSTANCE: stir plate may be positioned upstream of the oxygen concentration sensor in the exhaust pipe of the internal combustion engine, wherein oxygen concentration sensor is positioned in the exhaust pipe. The stir plate is designed to mix the exhaust gas flow in the exhaust pipe. The agitating plate is comprised of a first plate and a second plate. The first plate is comprised of a deflecting plate which runs in an oblique direction and a twisting direction relative to the direction of the exhaust pipe rout. The second plate runs in the direction perpendicular to the exhaust pipe rout. The second plate is comprised of a through hole. The second plate is positioned in the exhaust pipe on the outer circumferential side of the first plate.EFFECT: higher efficiency.6 cl, 10 dwg

Sealing arrangement of steam turbine in which sealing liquid and vapour steam extraction system are used // 2612979
FIELD: turbines.SUBSTANCE: invention relates to sealing system of steam turbine for rotating around axis of shaft through a fixed housing, wherein for compaction a sealing liquid is used.EFFECT: such design of sealing system will increase efficiency of steam turbine.10 cl, 3 dwg

Casing // 2612977
FIELD: engines.SUBSTANCE: invention relates to mechanical vehicle engine cooling system casing. Casing (1) contains frame (2), having primary hole (3), limited by main wall (4), and, at least, one secondary hole (5), limited by secondary hole (6) for cooling air flow passage; connected to frame (2) fan mounting system (7), in order to keep fan in primary hole (3); secondary hole (5) closing panel (10), connected to frame (2) and made with possibility of displacement by turning between lowered position and raised position, wherein casing comprises rod (11), determining panel (10) turning axis (R), passing through secondary hole (5) and having first and second ends (11a, 11b), connected to secondary wall (6) first and second sections (6a, 6b), respectively, opposite to each other, as well as two hooks (12a, 12b), made in panel (10) for connection with rod (11).EFFECT: invention provides improvement of vehicle cooling.8 cl, 4 dwg

Rotary internal combustion engine // 2612873
FIELD: engines and pumps.SUBSTANCE: rotary internal combustion engine comprises a housing made up of four parts. Each part is a L-shaped fragment. When connecting the fragments, two mutually perpendicularly disposed annular walls are formed, with the ribs on the outer surface and with the annular path inside, forming two channels. A toroidal rotor is disposed in each channel, with the possibility of displacement along the path. Each toroidal rotor is formed with longitudinal slots disposed outside or inside the rotor, forming cavities between said rotor and the path surface, which communicate with the chambers located outside the walls. Intake and exhaust openings communicating with the cavities between said rotor and the path surface are made in the walls. The rotors are interconnected by the rotation synchronization kinematic chain made of a series of gears sequentally meshed with one another. One of the gears is in mesh with one toroidal rotor. The last gear is meshed with the output shaft rigidly connected with the other toroidal rotor.EFFECT: simplified design and higher efficiency factor of the engine.2 cl, 8 dwg

Piston machine, mainly engine, equipped with watt approximate straightline generating mechanism // 2612868
FIELD: engines and pumps.SUBSTANCE: piston machine, mainly engine, comprises Watt approximate straightline generating mechanisms, at least a pair of cylinders located in a housing, located in pair on same axis, in the cylinders reciprocating pistons associated with rods are located. According to the invention ends of rods of piston pairs are hingedly secured at middle of straightening levers of Watt approximate straightline generating mechanisms, each connected by one of rocker arm via piston rods to cranks of a crankshaft.EFFECT: invention ensures straight movement of piston rods.4 cl, 7 dwg

Shop vacuum cleaner noise suppressor // 2612767
FIELD: machine engineering.SUBSTANCE: suppressor includes a housing, consisting of a cylinder shell, rigidly connected to the end circular plates with inlet and outlet nozzles. The reactive chambers, formed by the circular discs with holes, are perpendicularly mounted to the direction of aerodynamic flow motion in the housing. Reactive chamber with an inlet connected to one of the end plates symmetrically round body attached resonance muffler insert and the outlet, and the other housing axially attached to the reactive part of the muffler inlet pipe. The reactive part of the muffler is installed perpendicular to the direction of motion of the aerodynamic flow and consists of at least three jet chambers formed by circular discs with apertures coaxial with the housing and the inlet and the resonance insert muffler is designed as a cylindrical sleeve attached coaxially body to end round plate and consists of a sound chamber and a resonance chamber formed by rigid walls. The resonance chamber is located at least two resonant inserts, attached to the liner, perpendicular to its axis, absorbing chamber is formed by a circular end plate with the outlet and a rigid wall part of a resonant cylindrical sleeve insert which is lined with sound absorbing material. Inside the sound absorption chamber, at least three exhaust sleeve attached to the sleeve, are located perpendicularly to its axis.EFFECT: improved efficiency of noise suppression.3 dwg

Blade root, corresponding blade, rotor disc and turbomachine unit // 2612675
FIELD: machine building.SUBSTANCE: blade root contains plurality of opposite projections pairs, plurality of opposite roundings pairs, plurality of side surfaces and blade root lower part. Projections and roundings are arranged in alternating order, and each of side surfaces is located between one of projections and one of roundings. First side surface from plurality of side surfaces facing away from lower part, has first planar surface section adjoining surface convex section and located in first plane. Projection surface convex section adjoins to surface first planar section, and rounding surface concave section adjoins to surface convex section. Surface convex section and rounding surface concave area adjacent to surface convex section, form local cavity relative to first plane. Another invention of group relates to blade, containing feather, flange and root, made as described above. One more invention of group relates to rotor disc, containing plurality of slots, each of which contains plurality of opposite projections pairs, plurality of opposite roundings pairs, plurality of side surfaces and disk slot lower part. Slot projections and slot roundings are arranged in alternating order, and each of slot side surfaces is located between one of projections and one of roundings. First slot side surface from plurality of slot side surfaces facing to slot lower part, has second surface planar section adjoining to convex transient section. Second surface planar section is located in first plane. Slot projection surface convex section adjoins to surface second planar section; and slot rounding surface concave section adjoins to convex transient section. Convex transient section and slot rounding surface concave area adjacent to convex transient section, form local cavity relative to first plane. Inventions of group are additionally relate to versions of turbo-machine unit containing above mentioned rotor disc and blade.EFFECT: group of inventions allows to reduce stresses at disc and blade contact points.15 cl, 8 dwg
ethod for producing monochrystalline rotor blades of gas turbines // 2612672
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy and can be used for the production of monocrystalline working blades for gas turbines with the improved characteristics of the resource and the operating temperature. In manufacturing the monocrystalline rotor blades of gas turbines, a monocrystalline blade billet of the specified crystallographic orientation is cast, the metal penetration and the remnants of ceramics are removed from the cast surface by means of sandblasting, with the following blade size control to determine the allowance amount to be removed by abrasion. After the allowance removal, the blade surface treated by an abrasive is etched in order to remove the defective surface layer with the distorted crystal structure. Then high-temperature annealing of the blade is carried out.EFFECT: invention allows to improve the quality of the blades due to the stabilisation of the monochrystalline structure of the working turbine blades during their production.2 cl, 2 dwg

Regulated guide vanes of axial compressor of turbine machine // 2612666
FIELD: machine building.SUBSTANCE: regulated guide vanes of axial compressor of turbine machine comprises two-support rotating vanes between an external housing and an internal detachable ring, and fluoroplastic inserts. Internal cylindrical trunnions of the rotating vanes are installed in response radial openings of the internal detachable ring fixed relatively them. Fluoroplastic inserts are installed over outside diameter of the internal cylindrical trunnion of each two-support rotating vane. Between the fluoroplastic insert and internal surface of the internal detachable ring formed by radial opening an outside and internal inserts are installed inserted one into another. The outside surface of the internal insert is made convex, spherical. Part of the internal surface of the outside insert at side of the longitudinal axis of the regulated guide vanes of the axial compressor of the turbine machine is made as concave hemisphere. Part of internal surface of the outside insert at side of the two-support rotating vanes is made cylindrical.EFFECT: invention increases wear resistance of the fluoroplastic insert, and hence increases service life and reliability of the connecting assembly of each rotating vane with internal ring and regulated guide vanes.1 dwg

Filtering element end plate forming inflow and outflow motion paths // 2612639
FIELD: engines.SUBSTANCE: invention can be used in internal combustion engines (ICE) fuel injection systems. Disclosed is filtering element for fuel, oil and other engine liquids, comprising filtering medium ring 30 with first end plate 38 and second end plate 40 leak-tight attached to it, wherein second end plate 40 comprises first structure 42, extending upwards from it and forming liquid flow through flow passage through second end plate, and second structure 50, made integral with second end plate 40 and forming plurality of liquid flow motion paths along second end plate upper part. Cap for preliminary filling is made integral with end plate 40, which enables to perform preliminary filling and installation without removal of components. Also disclosed is filter, containing described filtering element.EFFECT: fuel filtering.13 cl, 10 dwg

High-pressure turbine support // 2612546
FIELD: oil and gas industry.SUBSTANCE: present invention relates to a turbine and can be used in the construction of gas turbine installations, in particular elements of support and thrust bearings. Prop high pressure turbine includes an outer casing, an inner ring connected in series, the bearing housing and roller cooperating with a turbine rotor, blade, nozzle, needle, sleeve and locking nuts. Needles are fixed on one end of the outer housing, and the other end on the inner ring. Bushings are designed as a cup with an opening in the bottom of the spokes. Sleeves are secured on the inner ring and the spokes are made beads. Each spoke is set in a hole in the bottom and the cup is provided with two pairs of washers with spherical surfaces. One pair of washers is mounted on the needle between the flange and the spokes on one side of the bottom cup and the other, between the other side of the bottom cup and the locking nut.EFFECT: increase of the gas turbine resources of the high pressure turbine plant.2 dwg

Aircraft stoichiometric power plant and its regulation method // 2612482
FIELD: aviation.SUBSTANCE: power plant consists of an input device, a turbocharger with air bleed behind the compressor for the turbine blades cooling, an output device. The turbocharger has a pressure ratio of the compressor not more than four, one stage of the turbine. The air is cooled in the air-to-air cooler, which has the dividing surface in the form of the aircraft cover, under which the air ducts combined with input and output receivers to which the air is supplied and discharged are placed. Receivers are interconnected with a supercharger, which pumps a part of the air from the output receiver to the input receiver, a mixer is installed on the output from the output receiver. Compressor rotation reduced frequency is kept constant throughout the operating range of altitudes and aircraft flight speeds.EFFECT: possibility to extend the application range according to the flight speed up to four Mach numbers, to increase overall efficiency.11 cl, 5 dwg
Shop vacuum cleaner noise suppressor // 2612454
FIELD: machine engineering.SUBSTANCE: suppressor includes a housing, consisting of a cylinder shell, rigidly connected to the end circular plates with inlet and outlet nozzles. The aerodynamic body perpendicular to the direction of flow has at least three reactive chamber formed by circular discs with holes, the holes in the disks alternately offset relative to the housing axis so that the openings do not coincide in the two adjacent disks. In this case three successively connected jet chamber are coupled to the inlet housing and with the chamber and the outlet. In this case the annular chamber is formed by a perforated disc and a circular end plate, which are interconnected by a central sleeve whose inner surface is lined with sound-absorbing material, and a coaxial cylindrical shell. In this case one of the discs facing towards the inlet pipe, is lined with sound-absorbing element round. The ratio of body length L1 to its diameter D is within the optimal values range L1/D=3.5…4.0; and the ratio of housing diameter D to the diameter of outlet nozzle D1 is within the optimal values range D/D1=4.5…5.5; and the ratio of housing diameter D to the diameter of the discs hole d is within the optimal values range D/d=5.0…6.0; and the ratio of housing diameter D to the chamber length LC is within the optimal values range D/LC=2.0…4.5. The housing is made of structural materials, coated on its surface on one or both sides with a soft vibration damping material, wherein the ratio between the thickness of the lining and vibration damping coating lies in the optimal range of values of 1: (2.5…3.5).EFFECT: improved efficiency of noise suppression.2 cl, 3 dwg

Centripetal turbine // 2612309
FIELD: machine building.SUBSTANCE: centripetal turbine comprising a casing, radial-axial turbine impeller provided with a blading is proposed. A collar spanning the gap between the casing and the impeller blades is made on the centripetal turbine casing on the working medium outlet from the blading radial-axial impeller. The distance between blade system tailing edge and the collar on the centripetal turbine casing is less than the gap between the periphery of the blade system and the centripetal turbine casing. On the output side of the working medium the collar may be formed with a flat surface disposed normally to the oncoming flow of working fluid.EFFECT: reduction of the working medium fluid leaks through the gap between the impeller blade and the housing, and increase turbine efficiency.2 cl, 1 dwg
Device for vehicle engine exhaust gas treatment // 2612306
FIELD: transportation.SUBSTANCE: exhaust gas treatment device comprises nozzle 3 for reagent injection before catalyst 1 of selective reduction of nitrogen oxides. Nozzle 3 is located on bent tube 5 within sleeve 6, located in pipeline 2 of the exhaust gas. Electric heater 9 is installed outside sleeve 6, and cell liner 11 covering elbow 5 is located inside.EFFECT: increased efficiency of vehicle engine exhaust gas treatment.3 cl, 1 dwg

Turbojet low-pressure compressor rotor fourth-stage impeller // 2612282
FIELD: engines and pumps.SUBSTANCE: turbojet low-pressure compressor rotor shaft fourth-stage impeller contains the disc comprising the hub with a central bore, the web and the rim, as well as the blades, each having a butt and a root with a profile formed by a concave trough and a convex back. The disc rim is connected to the web with the formation of annular flanges separated along the rim periphery by the annular groove for disposing the impeller blade butts. The hub is made symmetrically developed relative to the middle arbitrary web plane normal to the rotor shaft axis, with the axial width exceeding 5.5÷7.3 times the root web portion thickness. The blade is made with the γ root profile pitch angle, variable in the root height with respect to the front line of the blade row profiles grate, decreasing with the radial distance from the rotor axis with the gradient Gp.a.=152.3÷218.9 [deg/m]. The blade root is made with the thickness variable in the blade root width and height, defined in cross-section as the difference between the back and trough heights relative to the chord connecting the inlet and the outlet edges of the blade root.EFFECT: higher efficiency and increased gasodynamic stability reserve in all operation modes of the compressor, and longer life of the low-pressure compressor last fourth stage impeller without increase in material input.10 cl, 4 dwg

Volume rotary-vane machines (two versions) // 2612230
FIELD: machine engineering.SUBSTANCE: bulk of the first embodiment of the rotary-vane machine comprises a supply-discharge of the working fluid channel, a distributor body mounted inside the rotor. The rotor comprises two bowls with radial slits, which are fixed on the plate. The plates are installed in pairs. The distributor comprises a sleeve and the cylinder. In a second embodiment, the machine comprises fixedly mounted on the outer bearing distributor housing in the form of the body of motion with a bottom and a lid. The distributor comprises a sleeve with external windows and the distribution cylinder with two internal windows. The composition comprises a rotor plate with openings for the plates and a hole for fixing the shaft and resting on its wobble plate via a bearing with a central opening and a spherical inner surface. The disk is supported through a bearing rotary puck with two roller stops and thrust a cup in the form of a hollow spherical segment, centered on the spherical surface of the housing cover. Supply and discharge channels are formed inside the distributor and are separated by the longitudinal wall. Shaft exits through the housing and connected to the bottom plate.EFFECT: reduced wear plates, to ensure the machine control.21 cl, 55 dwg

ethod to manufacture bladed integrated disk of gas turbine engine from blank with defects detected during its machining // 2612108
FIELD: transportation; aviation.SUBSTANCE: method includes serial roughing machining with end cutters of upper, middle and end sections of blades and their further finishing. At the same time after roughing finishing of upper and middle sections of blades they detect defects on their surface. Sections of blades with detected defects are removed. Upper and middle sections of the blades are recovered. To recover upper and middle sections of blades at the place of their removal, a ledge is formed for blade root sections on a circular stock. A process base plate is manufactured in the form of a mount with a through cut, matching the ledge contour for blade root sections. Also a structural part is manufactured, contact plane of which is commensurate with the contact surface of the mount, and its volume complies with the volume of removed upper and middle sections of blades. With the help of electron beam bonding, the ledge for blade root sections, the mount and the structural part are connected to each other. Further roughing finishing is performed on recovered blade sections.EFFECT: invention makes it possible to expand process capabilities to manufacture a bladed integrated disk of a gas turbine engine due to elimination of defects in process of its manufacturing.5 dwg
ethod of combined generating electric power, heat and cold in combined-cycle plant with steam injection and combined-cycle plant for its implementation // 2611921
FIELD: power engineering.SUBSTANCE: invention relates to power engineering and can be used in designing new and improving existing combined-cycle plants (CCP) of contact type (CCP-C) intended for generating electric power and heat, as well as a power drive, for example, for compressors of gas-compressor stations of gas mains. Method of combined generating electric power, heat and cold in a combined-cycle plant with steam injection involves air compression in a multistage compressor with intermediate cooling air with heated water in a contact heat exchanger. Supply of a compressed steam-air mixture into the combustion chamber of the gas turbine with injection of additional steam produced in the exhaust-heat boiler. Expansion of the steam-gas mixture in the high-pressure turbine. Cooling the steam-gas mixture in the exhaust-heat boiler and in the gas cooler for heating delivery water of the heat and cold water supply system due to heat of steam condensation from the steam-gas mixture. System of condensed moisture removal from the steam-gas mixture, further delivery of dried steam-gas mixture into the expander while collecting the formed condensate and returning it into the steam-gas cycle. Pressure behind the high pressure-turbine is maintained at the level of 0.35-0.5 MPa, sufficient for heating the circulating water in the heat and cold water supply system up to the temperature of 100–110 °C.EFFECT: simpler technique of combined generating power, heat and cold, implementation of potential condensation of water vapours at a temperature level sufficient for heating the delivery water up to standard parameters of the heating system.5 cl, 1 dwg

Axial turbomachine and housing from composite material for axial turbine machine // 2611914
FIELD: turbo-machines.SUBSTANCE: group of inventions relates to axial turbine machine outer housing from composite material. Housing from composite material for axial turbine machine contains circular wall, containing matrix and woven fibrous stiffening element (40). Depending on its thickness stiffening element (40) comprises two outer layers (48) and one central layer (50), arranged between layers (48). Layers (48, 50) contain woven fibres passing in circular wall axial direction, and woven fibres, passing along circular wall circumference. At least one of layers (48) has difference in ratio between axial woven fibers and circular woven fibers. Axial woven fibers make largest part of woven fibers.EFFECT: group of inventions is aimed at improvement of housing composite material annular wall mechanical resistance in case of contact with rotor blades.15 cl, 11 dwg

Turbine machine wear indication system and method // 2611708
FIELD: turbo-machines.SUBSTANCE: wear indication system comprises turbo machine component and another turbomachine component, which is in contact with turbomachine component. In turbo machine component in area of contact with another turbomachine component groove is made. Inside turbo machine component groove indicating layer and upper layer are formed, wherein upper layer covers indicating layer so, that indicating layer becomes optically visible, if upper layer is subjected to fretting due to turbine machine component contact with turbomachine another component. Upper layer and/or indicating layer is solid coating layer, having smaller friction coefficient and higher resistance to wear or fretting in comparison with turbo machine component material. In case of turbine machine wear indication, if upper layer is subjected to fretting due to turbine machine component contact with turbomachine another component, indication is performed with help of said indicating layer.EFFECT: group of inventions enables to simplify turbomachine component wear indication.15 cl, 3 dwg
Toroidal-rotary internal combustion engine // 2611704
FIELD: engines and pumps.SUBSTANCE: toroidal-rotary internal combustion engine contains one or more mechanically linked between each other pistons. The pistons simultaneously perform the angular reciprocating motions along the generatrices of toroidal cylinders, formed from the toroidal volume by separating toroidal volume with pressure-tight radially mounted intercylinder partitions for equal volumes. The reciprocating motions of the pistons are transmitted to the loading tubular shaft. The shaft is connected to the ratchet gears of the right and left rotation, which further transfer the load to the two coaxially installed counter-rotating output shafts. The sparking plugs are installed on the planes of intercylinder partitions. The cylinders in the intercylinder partitions area have the combustion chambers, the volume of which depends on the working strokes length. The oppositely directed gas supply valves are installed in the combustion chambers.EFFECT: reduction of the cost per unit of power, increase of efficiency and service life.4 cl, 3 dwg

ethod of additional internal combustion engine cylinder filling with air or fuel mixture by overlapping of valve timing with drive system of double-valve gas distributor, charging drive system hydraulic accumulator with fluid from compensative hydraulic accumulator // 2611703
FIELD: engines and pumps.SUBSTANCE: in the final release phase the control slide valve system sets the intake and exhaust valves in the middle position, at which the fluid from the hydraulic accumulator goes to the drive piston cavity of the inlet-release valve. Thus the intake and exhaust valves are balancing around the middle position. The cylinder filling occurs on the suction stroke. At that the system sets the intake valve into open position and the exhaust valve into closed position. The valve timing overlapping and kinetic energy of the air flow or fuel mixture is additionally fills the ICE air cylinder with air or fuel mixture.EFFECT: increase of cylinder filling.1 dwg

ethod of additional internal combustion engine cylinder filling with air or fuel mixture by overlapping of valve timing with drive system of double-valve gas distributor, charging drive system pneumatic accumulator with gas from compensative pneumatic accumulator // 2611702
FIELD: engines and pumps.SUBSTANCE: in the final release phase the control slide valve system sets the intake and exhaust valves in the middle position, at which the air from the pneumatic accumulator goes to the drive piston cavity of the inlet-release valve. Thus the intake and exhaust valves are balancing around the middle position. The cylinder filling occurs on the suction stroke. At that the system sets the intake valve into open position and the exhaust valve into closed position. The valve timing overlapping and kinetic energy of the air flow or fuel mixture is additionally fills the ICE air cylinder with air or fuel mixture.EFFECT: increase of cylinder filling.1 dwg

Throttling device system to control and/or adjust engine braking mode of internal combustion engine // 2611548
FIELD: engines and pumps.SUBSTANCE: invention can be used in cars supercharged internal combustion engines throttling devices systems. Throttling device system is intended to control and/or adjust engine braking mode for engine equipped with turbo compressor. Operating on waste gases turbo compressor comprises, at least, one single- or multipath turbine (1), operating on waste gases. In turbine (1) housing (2), at least, one inlet channel (2b) is made. In inlet channel (2b) upstream of arranged in turbine impeller (3) intake chamber (7), as well as adjacent to it throttling device (8) is integrated. Throttling device (8) is located in impeller intake chamber (7) inlet channel (2b) mouth area so, that throttling device (8) in its closed position completely closed, at least, one inlet channel (2b) and thus closed hydraulic connection with impeller intake chamber (7). Inlet channel (2b) in mouth area has smaller channel cross-section, then in upstream located turbine inlet (2a) area. Invention discloses turbine compressor operating on waste gases for vehicle internal combustion engine and method of throttling device system operating.EFFECT: technical result consists in increase of engine braking capacity in low speed range.17 cl, 3 dwg

Oil bath for internal combustion engines and strainer system // 2611547
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building, namely to internal combustion engines lubrication systems. The oil bath for internal combustion engines has an integrated suction pipe. The suction pipe at the oil bath (1) inlet has an inlet oriented vertically to the bath bottom and an strainer (9) consistent with the inlet. The suction pipe also has a connecting area for direct or mediated connection to the lubricating oil pump of the internal combustion engineat, this area is located above the inlet. The suction pipe wall is formed directly by the bath bottom and is covered by the top lid (6c) of the suction pipe. A receiving element (10) is provided on the suction pipe lid (6c) or between the protruding guide portions (6a, 6b) from the bath bottom side and the suction pipe lid (6c). The strainer (9) in the receiving element (10) is oriented, positioned and removably fixed in the direction (E) of oil bath (1) and/or suction pipe lid (6c) removal from the mold. The strainer system is also disclosed.EFFECT: invention provides efficient oil suction.18 cl, 7 dwg

Abnormal frequent regeneration detection method of diesel particulate filter, exhaust gases after treatment system, system and method of warnings // 2611546
FIELD: engines, methods and fuel burners.SUBSTANCE: invention relates to the internal combustion engine exhausted gases treatment systems. The present application describes a detecting method of the diesel particulate filter (DPF)abnormally frequent regeneration. The method comprises: measuring the pressure drop at the DPF and using the measured value for getting the estimated degree of DPF filling with soot, based on the pressure drop; calculation of the soot content in exhaust gases by the engine model and using the calculated value for the estimated degree of DPF filling with soot through the soot emissions level; comparing the calculated degree of DPF filling with soot, obtained on the basis of the pressure drop with the calculated degree of filling with soot, obtained on the basis of the the soot emissions level; and providing a warning signal, if the difference between the calculated degree of filling with soot, obtained by the pressure drop and the calculated degree of filling with soot, obtained on the basis of the soot emissions level, exceeds the preselected value.EFFECT: invention provides a reliable definition of the diesel particulate filter abnormal frequent regeneration.16 cl, 3 dwg

Turbine engine stator wheel and turbine or compressor containing such stator wheel // 2611539
FIELD: engines and pumps.SUBSTANCE: turbine engine stator wheel comprises plurality of blades and metal assembly ring. Each of blades has internal platform, external platform having locking tabs from outside, and, at least, one aerodynamic surface extending between internal and external platforms. Blade and external platform together with locking tab form single element from composite material. In metal assembly ring blades locking tabs are engaged. Metal ring supports all blades, continuously extends along plurality of adjacent blades external platforms and forms separate assembly part between blades and housing. Other inventions of group relate to turbine and turbine engine compressor containing above mentioned stator wheel.EFFECT: group of inventions enable to simplify turbine engine stator assembly comprising blades from composite material, as well as reduce leakages along blades external platforms.12 cl, 12 dwg

Ice and its operating mode // 2611536
FIELD: engines and pumps.SUBSTANCE: ice is designed to implement the method of converting piston rotary reciprocation into crankshaft rotation. It is possible to burn fuel and affect piston unit rotating in the engine housing rigidly connected to the shaft by pressure of combustible fuel-air mixture. The upper end of the shaft is released upward through the hole in the flange centre, and a lower end is released downward through the crankcase with a hole in the engine base centre for creating torque. Flange splines with the pistons which are designed to perform rotary reciprocation fitted between them are positioned in the piston unit. The flange is fixed to the engine housing. There is a crankcase with a lubricating oil at the engine housing base. Oil is delivered by the rotary piston unit through the holes with shovels in its disk into the cavity between the pistons, splines and oval piston unit disks, is sprayed, lubricates and flows back to the crankcase through the holes for drainage positioned in the piston unit disk as well.EFFECT: simplified design, decreased weight and the engine vibration isolation.2 cl, 3 dwg

Gas turbine engine low-pressure compressor rotor impeller (versions) // 2611497
FIELD: engines and pumps.SUBSTANCE: rotor shaft second-stage impeller of the gas turbine engine low-pressure compressor contains the disc comprising the hub with the central opening, the blade and the rim, as well as the blades, each having a butt and a root with a profile formed by a concave trough and a convex back. The disc rim is connected with the disc blade with the formation of different-arm circular conical inclined flanges. The outer rim surface is made with the inclination angle of the generatrix relative to the axis of the rotor shaft, the radius of which varies monotonically in the direction of the working fluid flow with the radial extension gradient Grim=(0.22÷0.32) [m/m]. The disc rim is provided with the system of grooves to secure the blades, uniformly spaced along the disc periphery. The longitudinal axis of each groove forms the pitch α angle of the blade butt, defined in the range of values α=(19÷27)°, with the rotor shaft axis in the axial projection of the arbitrary axial plane, normal to the blade root radial axis. The blade is formed with the pitch angle of the blade root profile, variable γ in the root height relative to the front line of the blade row profiles grate, decreasing with radial distance from the rotor axis with the gradient Gu.p.=(196.3÷282.2) [deg/m]. In addition, the blade root is made with the thickness variable in width and height of the root. The maximum thickness of the blade root profile is made the largest in the radical cross-section and decreasing in the blade root height towards the peripheral end face with the gradient Gu.t=(1.14÷1.63)⋅10-2 [m/m].EFFECT: higher efficiency and increased gasodynamic stability reserve in all operation modes of the compressor, and longer life of the low-pressure compressor rotor impeller without increase in material input.19 cl, 6 dwg

Airfoil profile // 2611465
FIELD: machine engineering.SUBSTANCE: airfoil profile has the inner surface, the outer surface opposite to the inner surface, the high pressure side, the low pressure side, the opposite high pressure side, the flow braking line, located between the high and low pressure sides downstream from the braking line. The first column of the recessed sections overlapping each other, corresponding to the flow braking line, is located on the outer surface. The flow braking line crosses the part of each section. The cooling channel in each recessed section, corresponding to the flow braking line, provides the flow-through communication between the inner and the outer surfaces.EFFECT: prevent the blades wear.8 cl, 10 dwg

Device for railway overhead system elements protection from exposure of self-consistent locomotive power equipment air-out fume // 2611448
FIELD: mechanical engineering.SUBSTANCE: invention relates to air-out devices of a diesel locomotive with an internal combustion engine or gas turbine. Device for railway overhead system elements protection from exposure of self-consistent locomotive power equipment exhaust fume consists of two guide plates groups disposed symmetrically about the longitudinal axis of the device symmetry. The guide plates are connected by the reinforcement ribs forming a honeycomb frame. The frame is rigidly connected to supports for the attachment of the device above the discharge outlet on locomotive body roof. Wherein one of the groups has guide plates inclined leftward from the longitudinal axis of the device symmetry at an angle of 25 to 70 degrees, and another group has guide plates inclined rightward from the longitudinal axis of the device symmetry at an angle of 25 to 70 degrees.EFFECT: device improving the efficiency of reducing the thermal and dynamic exhaust gases effects to the electrified lines contact network.3 cl, 4 dwg
Active aerodynamic suppressor // 2611226
FIELD: machine engineering.SUBSTANCE: suppressor includes a housing, consisting of a cylinder shell, rigidly connected to the end circular plates with inlet and outlet nozzles. The reactive chambers, formed by the circular discs with holes, are mounted perpendicularly to the direction of aerodynamic flow motion in the housing. The reactive chambers are connected with the inlet nozzle, the resonance suppressor insert and the outlet nozzle is attched to one of the end circular plates axially-symmetrically to the housing, and the inlet nozzle is attached to the other end circular plate axially-symmetrically to the housing. The resonance suppressor insert is formed as a cylindrical sleeve, attached to the circular end plate coaxially to the housing, and consists of the acoustic chamber and a resonance chamber, formed by the rigid walls. The resonance chamber has at least two resonance inserts, fixed to the sleeve, perpendicular to its axis, and the acoustic chamber is formed by the end circular plate with an outlet nozzle, the rigid wall and the part of the resonance insert cylindrical sleeve, which is coated with the acoustic material, at least three exhausted liners, attached to the sleeve perpendicular to its axis, are located in the acoustic chamber. The walls surfaces, turning away from the resonance chamber, are coated with acoustic circular elements, and the acoustic ring elements are installed coaxially to the cylindrical housing from its inner side. The part of the end circular plate of the acoustic chamber is coated with acoustic material.EFFECT: improved efficiency of noise suppression.5 cl, 4dwg, 3 dwg

Reactive noise suppressor // 2611224
FIELD: machine engineering.SUBSTANCE: suppressor contains the cylindrical body, rigidly connected with the end inlet and outlet nozzles, and a partitions, at least two discs with holes forming chamber are installed in the housing perpendicularly to the direction of aerodynamic flow, at that the disc holes are alternately misaligned relatively to the axis of the housing, in such a way, that the holes in two adjacent disks don't coincide. The ratio of body length L1 to its diameter D is within the optimal values range L1/D=3.5…4.0; and the ratio of housing diameter D to the diameter of outlet nozzle D1 is within the optimal values range D/D1=4.5…5.5; and the ratio of housing diameter D to the diameter of the discs hole d is within the optimal values range D/d=5.0…6.0; and the ratio of housing diameter D to the chamber length LC is within the optimal values range D/LC=2.0…4.5. The housing is made of structural materials, coated on its surface from one or both sides with the soft vibration-damping material, such as WD-17 rezin or material "Guerlain-D" type. The ratio between the thickness of the linning and the vibration damping coating is within the optimal values range 1:(2.5…3.5), and the sound-absorbing ring elements and the sound-absorbing circular elements are installed in the chambers.EFFECT: raised efficiency of noise suppression due to the chamber suppressor settings by means of the noise absorbing element turn.5 cl, 4dwg, 3 dwg
Kochetov's acoustic guardrail // 2611223
FIELD: machine engineering.SUBSTANCE: guardrail is formed as a continuous rigid and perforated wall, between which the sound-absorbing element is located, the absorbing element is performed in the form of four layers: the first layer is reflecting, it's made solid and shaped of complex polygon profile and consists of inclined side planes, connected at the lower part by horizontal edges and between the side planes and the rigid wall there is the second layer made from sound absorbing material, wherein between the perforated wall and a reflecting layer with an air gap relatively to the reflecting layer there is the third discontinuous layer from the soft sound-absorbing material, which is fixed to the perforated wall and is in the form of polyhedrons with equidistant and congruent surfaces, located below the corresponding side planes of sound-absorbing layer.EFFECT: increase of sound absorption efficiency and structure reliability.3 cl, 1 dwg
Active aerodynamic suppressor // 2611222
FIELD: machine engineering.SUBSTANCE: suppressor includes a housing, consisting of a cylinder shell, rigidly connected to the end circular plates with inlet and outlet nozzles. The reactive chambers, formed by the circular discs with holes, are mounted perpendicularly to the direction of aerodynamic flow motion in the housing. The reactive chambers are connected with the inlet nozzle, the resonance suppressor insert and the outlet nozzle is attched to one of the end circular plates axially-symmetrically to the housing, and the inlet nozzle is attached to the other end circular plate axially-symmetrically to the housing. The resonance suppressor insert is formed as a cylindrical sleeve, attached to the circular end plate coaxially to the housing, and consists of the acoustic chamber and a resonance chamber, formed by the rigid walls. The resonance chamber has at least two resonance inserts, fixed to the sleeve, perpendicular to its axis, and the acoustic chamber is formed by the end circular plate with an outlet nozzle, the rigid wall and the part of the resonance insert cylindrical sleeve, which is coated with the acoustic material, at least three exhausted liners, attached to the sleeve perpendicular to its axis, are located in the acoustic chamber. The walls surfaces, turning away from the resonance chamber, are coated with acoustic circular elements, and the acoustic ring elements are installed coaxially to the cylindrical housing from its inner side. The part of the end circular plate of the acoustic chamber is coated with acoustic material.EFFECT: improved efficiency of noise suppression.2 cl, 3 dwg
 
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