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(15284)

Rotary machine (versions) and method of composite working wheel fastening on metal shaft of rotary machine // 2642716
FIELD: machine engineering.SUBSTANCE: rotary machine comprises a stator and a rotor rotatable with relative to the stator and having a metal shaft, a composite working wheel and at least a first metal ring fastening the composite working wheel on said metal shaft. The composite working wheel comprises a composite portion and a metal fixing portion connected to each other, and having a bushing and a radially extending portion that extends radially outward from the bushing. The metal ring has a first engaging surface with a metal fixing portion of the composite working wheel and a second engaging surface with a metal shaft, thereby force applied by the metal ring to the metal fixing portion of the composite working wheel allows to prevent movement between the composite working wheel and the metal shaft. According to another version, the metal ring is mounted on metal fixing portion of the composite working wheel and the metal shaft by a hot fit. When the composite working wheel is secured on the metal shaft of the rotary machine, the composite working wheel is mounted on the metal shaft, and the first metal ring is heated. The metal ring is then mounted on the metal shaft in order to cool and shrink the metal ring for engaging the metal fixing portion of the composite working wheel and the metal shaft.EFFECT: group of inventions allows to secure the working wheel including the composite portion to the metal shaft and protect such working wheel from heat radiation of metal fixing ring.7 cl, 12 dwg

Gas turbine with bilateral drive // 2642714
FIELD: power industry.SUBSTANCE: gas turbine system comprising a gas turbine (23), a first load (71) and a second load (72) driven by a gas turbine. The gas turbine (23) comprises a gas generator (27), a low pressure turbine (50) and a drive shaft (65) driven by a low pressure turbine (50). The drive shaft has the first end (65H) connected with ability to transmit the driving force to the first load, and the second end (65C) connected with ability to transmit the driving force to the second load. The first load and the second load are located on opposite sides of the gas turbine, wherein the drive shaft (65) extends axially through the gas turbine from the first end to the second end. Wherein, the first load and the second load contain a compressor with a vertical housing connector. Method for operating gas turbine system is also provided.EFFECT: invention allows to increase the efficiency of system.14 cl, 5 dwg

anagement device for internal combustion engine, emissioning emissions of white smoke // 2642710
FIELD: engines and pumps.SUBSTANCE: control device for the internal combustion engine includes an exhaust gas control device in the exhaust system of the internal combustion engine. The exhaust gas control device comprises an intake air volume regulator, a temperature sensor and an electronic control unit. The temperature sensor has the ability to measure the temperature of the exhaust gas control unit. The electronic control unit has the ability to estimate the amount of sulfur compound accumulation. The value of sulfur compound accumulation is the amount of sulfur compound accumulated on the exhaust gas control device. When a specific condition in which the value of the accumulation of sulfur compounds is equal to or above a predefined magnitude accumulation (S1) and the temperature of control device with exhaust gases is equal to or above the predefined temperature (S2) is satisfied in operational state, the electronic control unit manages the intake air volume regulator so that the intake air volume controller increases volume of suction air (S5) compared with, when a particular condition is not satisfied in the same operational state (S4).EFFECT: more accurate determination of the amount of sulfur compound accumulation.5 cl, 7 dwg

Steam power plant with spindle leak steam pipe line // 2642708
FIELD: power industry.SUBSTANCE: invention relates to a steam power plant (1), including a steam turbine (2), a steam pipe (5), hydraulically connected to the steam turbine (2, 2a, 2b) and designed for the steam passing, a valve (3, 4, 6, 7) fixed in the steam pipe (5) and designed to change volume flow of the steam in the steam pipe (5). In the operating mode, a spindle leak steam is formed in the valve (3, 4, 6, 7), hydraulically connected to a pipeline (11, 12, 13, 15, 17, 18, 19, 20) of the spindle leak steam, a collector (16) of the spindle leak steam, hydraulically connected to the pipeline (11, 12, 13, 15, 17, 18, 19, 20) of the spindle leak steam characterized in that in the pipeline (11, 12, 13, 15, 17, 18, 19, 20) of the spindle leak steam an armature is installed (14a, 14b). The collector of the spindle leak steam is made in the form of a condenser (8). Also, a method for operating the plant is also provided, characterized in that the armature (14a, 14b) is opened with the presence of the spindle leak steam in front of the armature (14a, 14b) and is again closed with the absence of release of the spindle leak steam from the valve (3, 4, 6, 7).EFFECT: simplify the design and increase reliability in operation.8 cl, 1 dwg

Rotary mechanical system with non-contact drive // 2642683
FIELD: aviation.SUBSTANCE: mechanical system (10) contains shaft (12), rotatable about its primary axis relative to the structural element (14), movable part (16), mounted on the shaft (12) rotatably with it about the primary axis (A) and moving at random relative to the shaft (12), the driving facility (18) to move the movable part (16) relative to the shaft (12). The driving facility comprises the first fastened section (20), which is mounted on the structural element (14) and the second movable section (22), which is mounted on the shaft (12) and is connected to the movable part (16). The driving facility (18) consists of the electromechanical drive with the air gap between the first section (20) and the second section (22).EFFECT: reduction of friction between the moving parts.9 cl, 5 dwg

Part made of ceramic material with base and wall // 2642606
FIELD: machine engineering.SUBSTANCE: ceramic material part comprises a part forming a base and a part forming a wall. The base is made of ceramic material of low porosity, and the wall contains a low-porosity shell and a core inside the shell. The porosity of the core is greater than the porosity of the base increasing with distance from the base. The base and the wall are obtained by ceramic powder sintering. The wall is formed in a powder-containing vessel by selectively sintering the powder by successive layers by a laser beam or an electron beam.EFFECT: reduced level of stresses in the part base.11 cl, 5 dwg

ethod and system of aero/hydrodynamic control of newtonian fluid flow in radial turbomachine // 2642203
FIELD: machine engineering.SUBSTANCE: method and system for aero/hydrodynamic control of newtonian fluid flow in the radial turbomachine which use conformal vortex generators is described.EFFECT: improvement of energetic efficiency and possibility to control various points in turbo-compressor or processing device for aero/hydrodynamic treatment of newtonian fluid flow.32 cl, 21 dwg

Exhaust gas control apparatus // 2642013
FIELD: engines and pumps.SUBSTANCE: invention relates to purification of internal combustion engine exhaust gases. Exhaust gas composition control apparatus includes an exhaust passage, a urea water tank, a urea adding valve, a urea pump, a pipe, and an electronic control unit. Electronic control unit is configured to drive the urea pump to perform a filling control when a condition requiring an execution of urea water addition to the exhaust gas in the exhaust passage by the urea adding valve is satisfied so that the pipe is filled with the urea water. Electronic control unit is configured to execute filling control when an exhaust pressure of the exhaust passage is equal to or less than a specified value. Electronic control unit is configured to stop the filling control when the exhaust pressure of the exhaust passage exceeds the specified value during execution of filling control.EFFECT: invention will enables to prevent pump operation associated with an unnecessary filling operation.4 cl, 2 dwg
Chamber silencer of noise of industrial vacuum cleaner // 2642011
FIELD: noise.SUBSTANCE: invention relates to noise suppression. Muffler contains a cylindrical body rigidly connected to the end inlet and outlet nozzles and partitions. There are at least two discs with holes installed perpendicular to the direction of motion of the aerodynamic flow in the case, these discs form the chambers. Holes of the disks are alternately displaced relative to the axis of the housing so, that the holes in two adjacent discs do not coincide. Discs are lined with sound-absorbing material at the side of the direction of the aerodynamic flow. Sound-absorbing structure of the lining of the inner cylindrical surface of the muffler body is of an annular type and comprises in its axial section a smooth and perforated surface, between which a multi-layer sound absorbing structure is arranged, having two layers: sound-reflecting layer adjoining the rigid wall, and sound-absorbing layer adjoining the perforated wall. Layer of sound reflecting material has a complex profile, consisting of evenly distributed hollow tetrahedrons, which enable to reflect sound waves coming in all directions.EFFECT: technical result is increase of efficiency of noise suppression.1 cl, 2 dwg

Helical hydraulic machine with a balanced rotor // 2642003
FIELD: hydraulic engineering.SUBSTANCE: invention relates to helical gerotor hydraulic machines and can be used for screw motors or general purpose pumps. Hydraulic machine comprises stator 1 with internal helical teeth 2 located along the length of its active part, serving as a support for teeth 3 of rotor 4, and rotor 4 mounted inside stator 1 with external helical teeth 3, number of which is one less than the number of teeth 2. Ratio of the length of the active part of stator 1 to the outer diameter of teeth 4 is configured to flexibly bend rotor 4 on this length – not less than the height of teeth 2, 3. Coincidence of the steps of the profiles of teeth 2, 3 occurs in a plane twisted as a helicoid around the axis of stator 1, passing along the axis of rotor 4. Rotor 4 is elastically bent at the length of the active part of stator 1, and its axis forms a left or right helical line located around the axis of stator 1, with a radius equal to half the height of teeth 2, 3. Length of the active part of stator 1 accounts for at least a quarter of its turn.EFFECT: invention is aimed at increasing the service life of the hydraulic machine.1 cl, 8 dwg

ethod of controlling the level of charging the pneumatic accumulator of a two-motor engine with external combustion chamber // 2641998
FIELD: engines.SUBSTANCE: invention relates to two-stroke engines with an external combustion chamber. Concept of the invention consists in the fact that a two-stroke engine with an external combustion chamber includes a pneumatic accumulator, control system and a valve to release excess air into the atmosphere. To match the level of charging of the accumulator with the engine power set and the optimum excess air factor, the control system opens the valve for discharging excess air into the atmosphere at the time. When the pressure in the pneumatic accumulator reaches a level, at which the required pressure of air supplied to the external combustion chamber is ensured.EFFECT: technical result consists in higher engine efficiency.1 cl, 1 dwg

ethod of pneumatic drive of two-valved gas distributor of a free piston power module with a generic external combustion chamber // 2641997
FIELD: power machine building.SUBSTANCE: invention relates to power plant engineering. Method of pneumatic drive of two-valved gas distributor of free piston power module with generic external combustion chamber is following. Compressed air for driving the pneumatic two-valve gas distributor of power module is taken from compressed air supply line to external combustion chamber, enters pneumatic accumulator and charges it. To open gas distribution valve, managing system sets control valve to the position of gas distribution valve, at which air from accumulator enters drive piston cavity of gas-distributing valve, when compressed air enters that gas-distributing valve opens into, and combustion products from external combustion chamber enter piston cavity of power module's expansion machine. To open gas distribution valve, controlling system sets control valve to the position of gas distribution valve, at which air from accumulator enters drive piston cavity of gas-distributing valve, when compressed air enters that the gas valve closes into. After exhaust cycle of exhausted combustion products, combustion product inlet valve is transferred to closed position and exhaust gas valve to the open position. For this, controlling system transfers control valve through air flow of inlet-outlet valve to the position, at which air from pneumatic accumulator enters that drive piston cavity of the inlet-outlet valve, when compressed air enters into which, combustion product inlet valve closes and exhaust gas valve opens. Exhausted combustion products from piston cavity of power module expansion machine are thrown into the exhaust manifold. In order to return the combustion product inlet valve to open valve and flue gas exhaust valve to the closed position, the control system transfers the control valve of the air flow of inlet-outlet valve to the position, in which air from pneumatic accumulator enters the cavity of the inlet / outlet valve piston, when compressed air enters one into which the combustion product inlet valve opens into, and flue gas discharge valve closes into.EFFECT: invention provides increase of gas exchange processes intensity in the cylinders of a free-piston power module with an external combustion chamber in the entire range of loads on the power module.1 cl, 2 dwg

Device for balance of rotor axial pressure of turbomachine // 2641994
FIELD: machine industry.SUBSTANCE: device for balancing the axial pressure of the rotor of the turbomachine comprises a hollow body and a disk disk mounted in the body with a central shaft and dividing the body into two cavities with channels for supply and discharge of compressed air to each hollow. One end of the shaft is provided with a central threaded socket, and both ends of the shaft – with external splined flanges. Disk piston is installed in the body on roller bearings and is provided with seals on the supports and the outer diameter of the piston. In the hollows of the device there are annular water heat exchangers with the supply and discharge of water. Displacement sensor is mounted on the body of the device with the ability to control the axial position of the piston and is electrically connected to the control unit. Axial pressure created on the piston is transferred to the rotor of the turbomachine. Rotating disk piston heats the compressed air around it due to frictional forces. Heated air transfers heat to water heat exchangers, which reduces the temperature of the device.EFFECT: invention is aimed at increasing the heat removal from the disk piston and the hollow body of the balancing device.4 cl, 2 dwg

ulti-section noise suppressor // 2641993
FIELD: acoustics; manufacturing technology.SUBSTANCE: invention relates to noise suppression. Silencer comprises a cylindrical housing, end inlet branch pipe rigidly connected with central pipe, having perforation and forming with housing by means of perforated partitions in form of at least one coaxially arranged to housing and central pipe of additional perforated pipe and ends of all pipes are rigidly connected to housing by means of solid partitions, wherein one of them is rigidly connected with inlet branch pipe, and the other one is located on the opposite side of the branch pipe, a sound-absorbing element is arranged between the housing and the perforated pipe and in the end part of central pipe there is a sound-absorbing element locked by lock washer. Sound-absorbing element, overlapping the holes in the end part of the central pipe, is made of annular type and in the form of two perforated walls between which there is a sound-absorbing element, the sound-absorbing element being made of two-layered or multi-layered.EFFECT: higher efficiency of noise suppression.1 cl, 3 dwg

ulti-section silencer // 2641991
FIELD: acoustics; manufacturing technology.SUBSTANCE: invention relates to noise suppression. Silencer comprises a cylindrical housing, end inlet branch pipe rigidly connected with central pipe with perforation and forming with housing by means of perforated partitions in form of at least one coaxially arranged to housing and central pipe of additional perforated pipe, and ends of all pipes are rigidly connected to housing by means of solid partitions, wherein one of them is rigidly connected with inlet branch pipe and the other is located on the opposite side of the branch pipe, sound-absorbing element between body and perforated tube and in the end part of the central pipe, which is fixed with a lock washer, the porosity of the sound-absorbing element located between the body and the perforated pipe, 2.5…5.0 times below the porosity of the sound-absorbing element located in the end part of the central pipe.EFFECT: simplifying the design, increasing the efficiency of sound attenuation.1 cl, 2 dwg

Combined kochetov noise suppressor // 2641990
FIELD: acoustics; manufacturing technology.SUBSTANCE: invention relates to noise suppression. Silencer includes a body with end walls, an inlet and an outlet branch pipe and a sound attenuating element, made in the form of chambers filled with sound-insulating material, formed by coaxially installed perforated inserts with partitions and the inner surface of the housing, in the middle of the noise-damping element, along its perimeter, a container is opened, open on the airway side and formed by the inner surface of the housing and the end surfaces of the inserts, one of chambers comprises a partition movable in axial direction, said partition being shaped as cross section of chamber, and the movable baffle is rigidly connected to at least two guiding strips located on both sides of the diagonal of the cross section, interacting with grooves formed in the end surface of the insert, and a guide apron is attached to the movable partition, perpendicular thereto and along the entire perimeter, interacting with the inner surface of the insert. Noise-absorbing element is made in form of two perforated walls, between which a multi-layer sound-absorbing element is located, the multi-layer sound-absorbing element is made of two-layered, the layer adjacent to one of the walls is sound-absorbing, and adjacent to another perforated wall is made of a sound-reflecting material of a complex profile consisting of uniformly distributed hollow tetrahedra, which enable to reflect sound waves incoming from all directions. As a sound-absorbing material of the noise-damping element layer, a porous sound-absorbing ceramic material is used.EFFECT: higher efficiency of noise suppression.1 cl, 3 dwg

Gas flow noise suppressor // 2641985
FIELD: machine industry.SUBSTANCE: invention relates to machine building, particularly to noise suppressors. Suppressor incorporates a casing with an inlet and an outlet branch pipes, an installed coaxially to the casing hollow insert with a throttling element made from a porous noise absorbing material and a coil spring lined with sound absorbing material and placed between the insert and the body and forming a screw channel associated with the inlet pipe. Coils of the cylindrical helical spring in the axial section are made in the form of a rigid and perforated walls, between which there are two layers: a sound-reflecting layer adjacent to the rigid wall, and an acoustic-absorbing layer adjacent to the perforated wall, wherein sound reflecting material layer is made from complex profile composed of evenly distributed hollow tetrahedrons, allowing to reflect sound waves incident in all directions. Porous noise-absorbing material is used as the sound-absorbing material of cylindrical coil spring, having a bulk density of 500÷1000 kg / m3 and consisting of 100 pts. wt. of perlite with a particle diameter of 0.5÷2.0 mm, 100÷200 pts. wt. of one or more sintering materials and 10÷20 pts. wt. of binding materials.EFFECT: higher efficiency of noise suppression.1 cl, 2 dwg
Tubular noise suppressor // 2641984
FIELD: acoustics; manufacturing technology.SUBSTANCE: invention relates to noise suppression. Silencer comprises a cylindrical housing, rigidly connected with end inlet and outlet pipes, sound absorber located between cylindrical housing and perforated element, and an acoustically transparent material, placed between perforated element and sound absorber. Sound absorber is made in the form of a sound-absorbing element of the ring type and in the axial section is made in the form of a ring whose walls are made in the form of a rigid and perforated walls, a sound-reflecting layer adjoining the rigid wall, and a sound-absorbing layer adjoining the perforated wall, wherein sound reflecting material layer is made from complex profile composed of evenly distributed hollow tetrahedrons, allowing to reflect sound waves incident in all directions, and mineral wool is used on a basalt basis as a sound-absorbing material, according to the invention as a sound-absorbing material of a sound absorbing layer located between the cylindrical body and a perforated element, a porous sound absorbing ceramic material having a bulk density of 500÷1000 kg/m3, and consisting of 100 pts. wt. pearlite with a particle diameter of 0.5÷2.0 mm, 100÷200 pts. wt. of one or more sintering materials and 10÷20 pts. wt. of binding materials.EFFECT: higher efficiency of noise suppression.1 cl, 3 dwg
Hollow poppet valve // 2641870
FIELD: engines and pumps.SUBSTANCE: hollow poppet valve (10) has a head (14) formed integrally with one end side of the stem (12). The valve (10) comprises a hollow part (S1) disposed on the head side (14) and a hollow part (S2) located on the side of the stem (12). The hollow part (S1) and the hollow part (S2) are separated from each other by a partition (15) formed in the region of the halving part (13) between the valve head (14) and the valve stem (12). Hollow part (S1), located on the side of the head (14), formed by partitioning (15), spherical indentations hull heads (14) and the closing element forming the bottom of hollow parts (S1), located on the side of the head (14). On the head side facing the combustion chamber (14), in a hollow part (S1), located on the side of the head, there is heat-insulating part containing gas or material, which has a lower thermal conductivity compared with metal forming valve (10). In the hollow part (S2) located on the side of the stem (12), there is a cooling part, into which the coolant (19) is loaded. Thermal insulation effect is achieved in the heat-insulating part. The heat dissipating effect is achieved in the cooling part. By specifying at least one out of the wall (15) in the direction of up and down and the length of the partitions (15) in the direction of upside-down is provided by regulation of the relative values of heat-insulating and heat dissipating effect. A method for controlling the relative values of the heat-insulating effect and the heat-dissipating effect of the hollow poppet valve is disclosed.EFFECT: increase the mechanical strength of the poppet valve.2 cl, 8 dwg

ethod of engine exhaust system operation and engine exhaust system of vehicle // 2641865
FIELD: engines and pumps.SUBSTANCE: in one example, hydrocarbon emissions from the engine are accumulated and/or sent to bypass the SCR to improve the SCR efficiency.EFFECT: improved SCR catalytic converter efficiency and reduced NOx emissions from the vehicle.8 cl, 10 dwg

Catalytic particle filter // 2641814
FIELD: machine engineering.SUBSTANCE: filter contains a flow substrate including a plurality of channels. The plurality of substrate channels comprises a plurality of input channels having an open input end and a closed output end and a plurality of output channels having a closed input end and an open output end. The inner walls surface of the plurality of inlet channels comprise a thin layer of at least one input coating composition comprising at least one refractory metal oxide, an optionally stabilized rare earth metal oxide. The outer surfaces of the inner walls of the plurality of outlet channels comprise a thin layer of at least one composition of the wall outlet coating comprising at least one refractory metal oxide, optionally a stabilized rare earth metal oxide. Coatings of the inlet and outlet channels may contain at least one catalytically active metal selected from the group consisting of platinum, palladium, iridium, rhodium, silver, gold, mixtures of any two or more thereof. The outlet coating length along the axis is greater than the inlet coating length along the axis. The invention also provides an exhaust system 40 comprising a catalytic particle filter 8 in accordance with the invention.EFFECT: reliability increase.45 cl, 3 dwg

Exhaust gas utilisation system, particularly for automobile comprising feed pump // 2641809
FIELD: engines and pumps.SUBSTANCE: exhaust gas utilisation system for automobile with internal combustion engine comprises the feed pump. According to the invention, at least one temperature sensor (TG, TA) is installed in the exhaust gas system for direct or indirect determination of actual temperature of the working medium. At least one said temperature sensor (TG, TA) is connected to a control unit (S) for controlling the pump drive. In the control unit (S), at least one limit value for the temperature is set, with which the actual value of the working medium temperature is compared. When the limit value of the temperature is not reached by the control unit (S), the pump drive and the pump feed are switched off, and if this limit value exceeds or at least one limit value is exceeded by a given value which is higher than the second limit value of the temperature, the pump drive and the pump feed are switched on.EFFECT: invention provides the use of exhaust gases to protect the feed pump from damage at low temperatures.21 cl, 3 dwg

Turbomachine with support pad // 2641807
FIELD: machine engineering.SUBSTANCE: turbomachine comprises a flange fixed on the fastening flange, and a support gasket. The support pad has first and second outer surfaces parallel to each other. The first outer surface of the support gasket is made in the form of a ring or ring segment and has first series of holes for passing fastening means. The second outer surface of the support pad comprises a plurality of surfaces for holding the heads of attachment means. The holding surfaces comprise a second series of holes located opposite the first series of holes for passing attachment means through the holes of the support pad. The first outer surface of the support pad separates the flange, and the fastening flange is formed of material that prevents galvanic corrosion which can occur therebetween.EFFECT: invention makes it possible to provide protection against galvanic corrosion of the fastening flanges without increasing the complexity of turbomachine assembly.7 cl, 6 dwg

Oil pan of internal combustion engine // 2641788
FIELD: engines and pumps.SUBSTANCE: oil pan of internal combustion engine comprises side walls, a bottom with oil a collector in the form of a recess, a drain and magnetic plugs, an intake device, a vertical filtering partition dividing the pan into cleaned and crude oil cavity, a guide plate installed with inclination towards crude oil, an adjusting gate under the vertical filtering partition installed in the lower horizontal guide, according to the invention, the lower horizontal guide is provided with a longitudinal slit and has elastic elements in the form of bent plates, which are fixed by the upper edge on the slit walls, and the base of the adjusting gate is made conical.EFFECT: reduced labour input and improved quality when performing maintenance of the internal combustion engine.2 cl, 4 dwg

Gas-driven turbines high-temperature stud pins refrigeration method and device for its actualization // 2641787
FIELD: electricity-producing industry.SUBSTANCE: gas-driven turbine high-temperature stud pin refrigeration method comprises the cooling air supply to the internal cavities through the air ports with the punched holes in the wall and the cooling air supply from the air cavity. The air extraction goes from the compressor stage with the following extracted air direction for the gas-driven turbine high-temperature stud pin refrigeration. Upon that, the extracted air flow rate control is effected on account of the isolation valve adjustment on the lines of the air extraction from the compressor stage, and the extracted air temperature control is effected on account of the air extraction from the compressor stage. Further, the extracted air is transferred through the cylindrical connecting leg into the cylindrical metal tube of a minor diameter and then after the distribution in a volume the extracted air runs into the cooling cylindrical conduit, where the extracted air is supplied through the perforation hole in the cylindrical metal tube of a minor diameter into the cooling cylindrical conduit, where it removes a part of the heat from the internal surface of the external cylindrical tube of a greater diameter and the air heats up as consequence of the heat loss. At this time, the extracted air cools down the external cylindrical metal tube walls of a greater diameter, and further the air is forced out into the outlet cylindrical connecting leg and further either goes back into the gas-driven turbine cycle or to the atmosphere. The cooling cylindrical conduit is formed by two cylindrical metal tubes with bases that have the common normal axis. Along with this, the cylindrical metal tube of a minor diameter has the perforation hole and is linked to the cylindrical connecting leg, and the external cylindrical metal tube of a greater diameter is linked to the outlet cylindrical connecting leg.EFFECT: enhancement of the operational life and reliability of the flanged joints packing of the gas-turbine plant casing and elimination of the leakage through the splits of the flanged joints packing of the gas-turbine plant in consequence of the thermal stress reduction on the connecting stud pin of the flanged joints without change of the gas-driven turbine composite member, the stud pins, the case and the gas-driven turbine flanged joints.4 cl, 3 dwg

Steam turbines high-temperature stud pins refrigeration method and device for its actualization // 2641782
FIELD: electricity-producing industry.SUBSTANCE: invention relates to the method and device for the case high-temperature stud pins refrigeration and the flanged joints of the steam turbines of the thermal power stations (TPS, CHP), more specifically for the high-temperature stud pin of the flange connectors of the high-pressure cylinder (HPC) seal, and can be used in the stud pins refrigerating systems of the turbines of a ST-type. The assigned technical problem in the steam turbines high-temperature stud pins refrigeration method, which includes the cooling steam supply along the cooling line from the flowing channel on one side and the cooling steam removal along the outlet line on the other side is achieved by means of the fact that the steam extraction is carried out from the medium or low-pressure stage of the steam turbine with subsequent direction of the extracted steam for the steam turbines high-temperature stud pins refrigeration. Upon that, the extracted steam flow velocity control is effected on account of the isolation valve adjustment on the extraction steam line from the low or medium pressure stage of the steam turbine, and the extracted steam temperature control is effected on account of the steam extraction from the low or medium pressure stage of the steam turbine. Further, the extracted steam is transferred through the cylindrical connecting leg into the cylindrical metal tube of a minor diameter and then after the distribution in a volume the extracted steam runs into the cooling cylindrical conduit, where the extracted steam is supplied through the perforation hole in the cylindrical metal tube of a minor diameter into the cooling cylindrical conduit, where it removes a part of the heat from the internal surface of the external cylindrical tube of a greater diameter and the steam heats up as consequence of the heat loss. At this time, the extracted steam cools down the external cylindrical metal tube walls of a greater diameter, and further, the steam is forced out into the outlet cylindrical connecting leg and further either goes back into the steam turbine plant cycle or to the atmosphere. The cooling cylindrical conduit is formed by two cylindrical metal tubes with bases that have the common normal axis. Along with this, the cylindrical metal tube of a minor diameter has the perforation hole and is linked to the cylindrical connecting leg, and the external cylindrical metal tube of a greater diameter is linked to the outlet cylindrical connecting leg.EFFECT: reduction in expenditure, thermal efficiency increase.4 cl, 3 dwg

Internal combustion engine // 2641774
FIELD: engines and pumps.SUBSTANCE: internal combustion engine is provided with a hydrocarbon supply valve (15) located in the engine exhaust duct. When control of injection for injecting hydrocarbons from the hydrocarbon supply valve (15) for exhaust cleaning is stopped, in order to prevent plugging of the hydrocarbon supply valve (15), hydrocarbons are injected from the hydrocarbon supply valve (15) in hydrocarbons to prevent plugging when the engine does not produce soot, i.e. when fuel supply inside the combustion chamber (2) stops, and after hydrocarbons are injected for one time to prevent plugging, the injection of hydrocarbons to prevent plugging of the hydrocarbon supply valve (15) stops till the control of injection for exhaust cleaning is resumed.EFFECT: improved efficiency.6 cl, 11 dwg
Rotary machine // 2641773
FIELD: machine engineering.SUBSTANCE: rotary machine consists of an inner rotor (1) and an outer casing (3) held by a fixed supporting structure and arranged such that the sealing points (5) inside the casing (3) interact at the sealing location with the outer surface of the rotor (1) to form working chambers, so that the movement of the rotor (1) relative to the casing (3) in operation causes the fluid to move through the channels (10, 11, 13) in the rotor (1) in the rotor shaft (9), between the working chambers and the point where the shaft (9) the rotor interacts with the supporting structure.EFFECT: solving problems related to the difficulty of passing gases or working fluids from outside the machine to the working chambers and out of them to machines, balancing, and mechanical problems of eccentric components and components performing reciprocating motion, replacing the seal, and isolating hot gases from the constituent parts.22 cl, 10 dwg

Gas-liquid heat-exchange system with plurality of fluid flow modes // 2641772
FIELD: power industry.SUBSTANCE: pipe system for transferring heat from exhaust gas flow to feed water containing an economizer that includes four sections, as well as heat exchanger, and a plurality of valves. In this case, the economizer sections are within said gas flow, and the heat exchanger is outside this flow. In addition, the valves can be arranged in different configurations, which allows to provide a plurality of flow modes for controlling the temperature of feed water entering the gas box. A flow control method is also provided.EFFECT: invention enables to avoid damage of pipes of heat-recovery flow generator caused by strong corrosive action of sulfuric acid on material of pipes by raising the temperature of feed water in the heat exchanger which is external in relation to exhaust gas flow.24 cl, 6 dwg

Blade of turbomachine stator comprising convex section // 2641768
FIELD: machine engineering.SUBSTANCE: stator blade (10) of the turbomachine compressor stator having a main radial direction R with respect to the main axis of the turbomachine. The blade comprises a radially inner portion (12) called the blade root, a radially outer portion (14) called the blade head, and a radially middle portion (16). The blade (10) comprises a portion (34) bent in tangential direction and at least one rectilinear portion in the blade root portion (12), blades and/or in the blade head portion (14). In tangential direction, the amplitude A of convex portion (34) is from 1% to 5% of blade (10) radial length L. Said straight portion is inclined at an angle greater than zero and less than or equal to 30°, relative to the radial main direction R of the blade (10).EFFECT: said tangentially convex portion changes blade vibration response to vibrational stresses and diverts so-called risk frequencies beyond the limits of the blade working range.8 cl, 2 dwg

ethod of engine operation (versions) // 2641423
FIELD: engines and pumps.SUBSTANCE: methods and system for controlling injection of water into the disconnected cylinders based on duration of engine operation in mode with one or several disconnected cylinders and the temperature of catalytic converter of exhaust gases are proposed. The invention enables to reduce saturation of catalytic converter with oxygen due to injection of water into disconnected cylinders, which expands and turns into steam, prevents air from getting into the disconnected cylinders and entering the catalytic converter.EFFECT: reduction of necessity for regeneration of catalytic converter of exhaust gases after disconnection of cylinders, prevention of decrease of catalytic converter efficiency, improvement of fuel efficiency and reduction of toxicity.18 cl, 8 dwg

Seal for turbo-fan engine // 2641421
FIELD: engines and pumps.SUBSTANCE: seal for sealing the gap between the blade and the cover plate of the straightening blade of the guide apparatus comprises a connecting portion for connecting to the cover plate, a ridge flexible portion and a collar flexible portion. The ridge flexible portion extends from the connecting portion and tapers towards the tip to form a rounded angle between the blade and the cover plate, when the tip is in contact with the blade. The collar flexible portion extends from the seal inner surface and has such sizes in order to come into contact with the structure upper surface to attach the vain and maintain gas impermeability.EFFECT: according to the present invention the seal does not require intensive labour operation, it requires only attachment to the cover plate and integration into the straightening blade of the guide apparatus for sealing the flow of air and not to cause turbulence in the air flow.4 cl, 8 dwg

System of diaphragm pump with possible refilling // 2641414
FIELD: engines and pumps.SUBSTANCE: system includes a diaphragm pump comprising of a suction port and a discharge port, a urea suction line communicating the urea source to the suction port through a liquid connection, and a urea discharge line in fluid communication with the discharge port. The recirculation line connects the liquid connection to the urea discharge line with the urea suction line and contains a flow controller operatively connected to it. The controller is capable of interpreting the state of loss of filling of the diaphragm pump and issuing a command to the flow controller in response to the state of loss of the fill, provides recirculation from the pump inlet port to the urea tank, ensuring a repeated filling of the pump.EFFECT: improvement of the diaphragm pump system.22 cl, 3 dwg

Rotary vacuum pump of vane type // 2641409
FIELD: engines and pumps.SUBSTANCE: pump comprises a drive motor (1) interacting with a chamber (2) for vane vacuum, in which all pump surfaces located in the upper half of the pump are configured so that there are no elements capable of holding liquids or solid particles. The pump or at least one of its parts is provided with protection means (6) with no surfaces or cavities capable of holding liquids or solid particles, or a drive motor (1) containing a double jacket, the upper part of which is formed by a cylinder which is an asynchronous motor with water cooling which has a housing forming a space together with the cylinder in which the cooling medium is circulating.EFFECT: creation of rotary vane vacuum pump which eliminates the risk of contamination, adapted to environments in which strict hygiene standards are applied.9 cl, 8 dwg

Crank mechanism with gear wheels // 2641343
FIELD: machine engineering.SUBSTANCE: crank mechanism with gear wheels includes pistons, connecting rods, gear wheels and connecting elements. Each cylinder of the piston machine has a pair of gears between which the connecting rod moves. The lower head of the connecting rod is pivotally connected to gear wheels. The hinge axis is displaced relative to the axis of gears pair rotation. Each gear wheel of the pair is in communication with gear wheels or a wheel of adjacent cylinder or cylinders.EFFECT: simplification of design.1 dwg

Device and method of protection of turbomachine calculator in aircraft from speed measurement errors // 2641329
FIELD: measuring equipment.SUBSTANCE: protection device of an aircraft turbomachine calculator from speed measurement errors, containing in the adjustment channel a speed sensor for the turbomachine gearbox shaft, the first speed measurement circuit and speed adjustment circuit. In the adjustment channel the device contains a speed sensor for the turbomachine gas generator shaft, the second speed measurement circuit and turbomachine shutdown control circuit. Both speed sensors are two sensors, which are installed opposite two phonic wheels of different processes and having a different number of teeth. The first and second speed adjustment circuits compare a frequency signal with a minimum threshold and deliver the first and second speed issue detection signals, when the measured frequency is lower than the minimum threshold. The device additionally includes a cross-check circuit of the first and second speeds, obtained from the first and second speed measurement circuits, respectively. The cross-check circuit delivers the third speed issue detection signal in case of an abnormal deviation between the first and second speeds. The frequency signals are various frequency signals. According to the method of protection of the turbomachine calculator two pseudo-sinusoidal frequency signal, the frequency signals with a minimum threshold are compared and the speed issue detection signals are delivered, the speeds, delivered from the speed adjustment channel and control channel, are cross-checked, and the third speed issue detection signal is delivered, the machine shutdown is controlled in case of a speed issue.EFFECT: improvement of the device.11 cl, 2 dwg

ethod and device for preparing cylinder oil // 2641327
FIELD: machine engineering.SUBSTANCE: invention relates to a method of obtaining cylinder oil, according to which the used oil is mixed with fresh cylinder oil, at that the used oil has a lower total base number (TBN) than the fresh cylinder oil. Method of operating an internal combustion engine is described, according to which cylinder oil is prepared according to any method of cylinder oil preparation, as described herein, and the cylinder oil is used in the internal combustion engine. Device is proposed for preparation of cylinder oil, which contains mixing means for mixing used oil and fresh cylinder oil, characterised by the mixing means is in fluid communication with at least one compartment of the internal combustion engine containing the used oil, or at least one storage compartment, containing used oil, with at least one compartment for storing fresh cylinder oil, and at least one cylinder of internal combustion engine. The methods, devices and applications of said invention are intended to be used in conjunction with two-stroke crosshead engines mounted on a ship.EFFECT: reduction of the amount of lubricants improves control of kinematic viscosity in preparation of cylinder oil from used oils, reduction of wear and corrosion.15 cl, 1 tbl, 3 dwg

ethod for regeneration of particulate filter // 2641325
FIELD: engines and pumps.SUBSTANCE: method for regeneration of particulate filter during the use of the engine producing exhaust gases, in which the first part of the process is carried out by exhaust gases, which comprises the following steps: (a) estimating consumption of fuel to be added to the exhaust gases to reach the required temperature; (b) adding fuel with said consumption rate to the exhaust gases; (c) combusting at least a portion of said fuel in said exhaust gases to increase the temperature of exhaust gases; (d) monitoring the value of exhaust gases temperature and comparing it with required temperature to determine the value of deviation; and (e) storing the value of deviation determined at step d in the memory device; then the second part of the regeneration process is carried out, which includes stage (f) of the step (a) with application of stored value of deviation for correcting the estimated value of fuel consumption, which must be added to the exhaust gases to reach the required temperature.EFFECT: increased reliability.15 cl, 12 dwg

Working vehicle (versions) // 2641324
FIELD: heating system.SUBSTANCE: working vehicle has a base, a support hinged to the base for rotation relative to the base about the first rotation axis between the first reference position and the second reference position, and a heat exchanger. The heat exchanger is hinged to the support for rotation relative to the support about the second rotation axis between the first position of the heat exchanger and the second position of the heat exchanger.EFFECT: increased efficiency of the heat exchanger.20 cl, 15 dwg

Container, method and control system // 2641196
FIELD: engines and pumps.SUBSTANCE: removable fluid container comprises a fluid storage reservoir, a fluid connection element configured to provide fluid communication between the reservoir and the fluid circulation system of the engine, and a data source configured so that positioning of the container provides fluid communication between the reservoir and fluid circulation system of the engine to switch the data source into communication mode for communicating data to the engine control device. In addition, the method of engine control and the engine control system, the device and the vehicle are described.EFFECT: elimination of improper selection of components in replenishment, replacement of fluid supplied to the engine.26 cl, 3 dwg

Engine oil level controller for internal combustion engine // 2641184
FIELD: engine devices and pumps.SUBSTANCE: engine oil level controller for the internal combustion engine contains a tank for oil storage reserve, a flexible oil line connected to the tank, an oil level sensor in engine crankcase, an electro-magnetic valve placed at the tank and oil line connection area, the controller further comprises an oil level indicator in the tank for oil storage reserve and an electric wire connecting the sensor, a valve and an indicator with car battery and a vehicle on-board system.EFFECT: reduced probability of emergency damages to crankshaft bearings and the cylinder-piston group of the engine.1 dwg

Vehicle engine (versions) and vehicle comprising such engine // 2641181
FIELD: transportation.SUBSTANCE: engine comprises an engine oil reservoir, an exhaust system, and a thermoelectric device. The exhaust system is made with the possibility to remove exhaust gas from the engine, and the thermoelectric device is connected to a power source and has a hot and a cold side. The hot side interacts with the exhaust engine gas, and the cold one - with the engine oil reservoir. The engine oil reservoir has an inner surface portion including one or more fins facilitating heat exchange with the thermoelectric device. The vehicle engine versions and the vehicle are disclosed.EFFECT: increasing the fuel economy and increasing the speed of warming up the vehicle engine.37 cl, 1 dwg

Gas turbine sealing assembly // 2640974
FIELD: engines and pumps.SUBSTANCE: gas turbine sealing assembly comprises an annular body with annular cover mounted thereon (2) with holes (3), an above-rotor insert located between them (8) is segmental and made of ceramic composite or ceramic material. The assembly also comprises a composite screen (15) located above the segments of the above-rotor insert (8), and a spring (13) located between the composite screen (15) and the annular body (1). The composite screen (15) is mounted for overlapping the gaps between the segments (9) of the above-rotor insert (8). There are sealing elements (11) installed in the gaps (10) between the segments (9) of the above-rotor insert (8).EFFECT: high operational reliability of the gas turbine sealing assembly with ceramic composites or the ceramic above-rotor inserts due to reliable fixation of segments of the above-rotor insert on the annular body, improved cooling efficiency of the sealing assembly.4 cl, 4 dwg
Steam turbine cooling method // 2640891
FIELD: machine engineering.SUBSTANCE: steam-turbine plant with steam turbine, comprising a steam inlet portion, a steam outlet portion, and a blade grid located in the turbine housing axially between the first two sections, as well as with an exhaust device to divert the cooling fluid from the turbine casing. The coolant inlet with locking and opening shut-off is provided. The shut-off is installed upstream of the steam outlet portion with respect to the flow direction of the working steam through the steam turbine during normal operation. The shut-off is activated by the cooling fluid after the power is turned off to a cooling mode below the operating temperature in the turbine housing. The steam-turbine plant comprises a valve through which the cooling fluid passes. The valve contains a drying device for draining the valve. This device comprises a drainage pipeline and a branch connected hydraulically to the inlet for the cooling fluid. Method for cooling a steam turbine with a turbine casing, in which after disconnecting power the inlet for the cooling fluid is hydraulically connected to the turbine casing pass with absorption of heat through the inlet for the cooling fluid, the incoming cooling fluid, in particular air, by means of an exhaust device through the turbine casing in the direction of the working steam flow through the steam turbine in the normal operating mode. The cooling fluid is passed through the valve. The valve comprises a drying device through which a cooling fluid is passed.EFFECT: reliable cooling of the gas turbine.11 cl, 3 dwg

ethod for forming straightener vanes // 2640889
FIELD: engines and pumps.SUBSTANCE: method for forming the straightener vane comprising the upper and lower shelves with a feather located between the shelves and made of prepreg based on a binder with continuous fiber reinforcement over the entire vane, a multi-layer composite carbon material, and includes curing of the vane. In autoclave, curing is carried out in a mould enclosed with working stack. During curing, vacuum is created in working stack with the mould not exceeding 0.02 MPa and temperature is raised up to 100±5°C at 1-5°C/min rate. Then it is held at 100±5°C temperature for 30-120 minutes, the pressure is raised up to 0.20 MPa at 0.01-0.02 MPa/min rate, after which the pressure is raised up to 0.60±0.05 MPa. Then temperature is raised up to 175±5°C at 1-5°C/min rate and held at 175±5°C for 120-480 minutes, after which it is cooled to 30°C at 1-5°C/min rate and the pressure is released. Holding is carried out for 5-50 min, and vacuum is released in the working stack.EFFECT: invention makes it possible to increase reliability of the straighter vane, reduce labour intensity of its manufacture, provide stability of strength and rigidity characteristics, improve weight characteristics of the straighter.2 dwg

Volumetric action rotary-piston hybrid machine // 2640886
FIELD: machine engineering.SUBSTANCE: machine consists of a body 1 with cylinders 2, 3, with rotors 10, 11, with projections 12, 13 which are driven by shafts 4, 6, synchronized by toothing 7, 8, 9 and a rotor 17 with recess 18. In the cylinders there are suction ports 27, 29 and pressure valves 29, 30. The shaft 4 has a crank 33 with rods 34, 46, on which the pistons 35, 47 are pivotally mounted in cylinders 32, 36 with valves 37, 40, 48, 49. In the cylinder 36 there are bypass channels 43 and 45. Channel 43 has a spool 44 protruding into the cavity of the cylinder 36. The suction port 27 and the valve 37 are connected by a suction line 39 to a source of liquid 38. The valves 29, 40 are connected by a pressure line 41 to consumer of liquid 42. The valve 30 is connected by the pressure line 50 to heat exchanger 51 which is connected to the cylinder 32 via the valve 48. The valve 49 is connected by the pressure line 52 to gas consumer 53.EFFECT: increased specific power of the machine, extended field of application, higher specific power, reduced material usage and reduced cost of compressed gas and liquid under pressure.3 cl, 5 dwg

Aerodynamic profile and method of its manufacturing // 2640881
FIELD: machine engineering.SUBSTANCE: aerodynamic profile comprises an outer and an inner wall and a cooling channel located therebetween, which serves to pass the cooling fluid therethrough during operation of the air profile. On the inner wall, there is a projection extending from the surface of the inner wall inside the cooling channel. The projection on the inner wall is arranged and profiled in such a way that it directs at least a portion of the cooling fluid, when it passes through the cooling channel and streamlines the projection on the inner wall so that the flow of the cooling fluid strikes the first region of the outer wall. The outer wall is also provided with a projection extending from the surface of the outer wall inside the cooling channel. The projection on the outer wall is arranged and profiled in such a way that it directs at least, a portion of cooling fluid flow, as it passes through the cooling channel and streamlines the projection from the outer wall to the inner wall so that it strikes the second region on the inner wall.EFFECT: increased cooling efficiency.12 cl, 3 dwg

Control device for internal combustion engine // 2640867
FIELD: engines and pumps.SUBSTANCE: internal combustion engine includes an exhaust gas monitoring device disposed in the exhaust passage of the internal combustion engine and a fuel supply device configured to supply fuel to the exhaust gas monitoring device. The control device contains an electronic control unit. Electronic control unit with control of the fuel supply fuel supply device for regeneration control in such a way that the temperature of the exhaust gas control devices rises and particulates, besieged at exhaust control device burn out. The electronic control unit provides the temperature increase exhaust control devices the first-speed increase in temperature for regeneration control when the temperature of the exhaust gas control devices is in the first temperature range. The electronic control unit provides an increase in the temperature of the exhaust gas monitoring device with a second rate of temperature increase as regeneration control when the temperature of the exhaust gas monitoring device is in the second temperature range. The second rate of temperature rise is lower than the first temperature increase rate, and the second temperature range is higher than the first temperature range. The electronic control unit provides the conditions for burning solid particles by maintaining the temperature of the exhaust gas monitoring device in the third temperature range as regeneration control when the temperature of the exhaust gas monitoring device is in the third temperature range. The third temperature range is higher than the second temperature range. The electronic control unit provides control of temperature control devices, exhaust gas at idle mode of operation so that it is equal to or less than the temperature of the exhaust gas control devices at a time when the engine internal combustion engine is included in the status of idling operation mode to manage the prevention of temperature increase when the temperature of the emission control devices during the regeneration control is the second temperature range and internal combustion engine is in idle state.EFFECT: preventing the formation of white smoke when the engine is idle.6 cl, 10 dwg

Blade machine // 2640864
FIELD: machine engineering.SUBSTANCE: blade machine comprises an inner body, a radially restrictive flow channel of the machine. A heat-insulating layer applied to the outer side of the inner body wall is arranged around the inner body, which is represented by a coating (1) which comprises a base material (2). The material (2) comprises a microporous plastic selected from the group consisting of polyurethane, polyethylene, polyolefin, polyester, polypropylene, polytetrafluoroethylene, epoxy resin, elastomers, zeolites, and a mixture of these materials or inorganic materials.EFFECT: creation of easily manufactured thermal insulation for the blade machine.13 cl, 1 dwg

ethod for balancing rotor of turbine engine and rotor balanced by such method // 2640863
FIELD: engines and pumps.SUBSTANCE: method for balancing the rotor of the turbine engine includes installation of screws of on the rotor forming the balancing loads to form a balancing circuit. Each screw has a given mass and comprises a head having a visual characteristic previously related to the screw weight. A rotor balanced by the method according to the invention, and a turbine engine comprising a rotor according to the invention are also provided. In particular, the invention is applicable to a turbine engine fan.EFFECT: improved fan balancing method.12 cl, 4 dwg
 
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