Positive-displacement machines for liquids and pumps for liquids or elastic fluids (F04)

F04            Positive-displacement machines for liquids; pumps for liquids or elastic fluids(23203)
Vibration weakening strips to discharge liquid for aircraft turbine engine fan housing acoustic protection // 2607688
FIELD: engines.SUBSTANCE: invention relates to aircraft gas turbine engine fan housing acoustic protection. Aircraft fuselage acoustic protection device comprises acoustic protection panel (6) with strips (10), weakening vibration. On one side strips are pressed to panel (6) outer surface (6a), and on other side is to fan housing inner surface. Each weakening strip (10) has two opposite edges (14), each of which has upstream and downstream ends, located at distance from each other along central axis (2) direction. One of two strips (10) opposite edges (14) has such shape, that liquid, present on this edge, could flow by gravity in direction of any one or both of its upstream and downstream ends.EFFECT: invention improves aircraft engine reliability.10 cl, 7 dwg
Wet gas compression system with thermoacoustic resonator // 2607576
FIELD: gas industry.SUBSTANCE: present invention humid gas compression system intended for wet gas flow containing fluid drops. Wet gas compression system may include pipe, compressor connected with pipe and thermoacoustic resonator, connected with pipe for destruction of liquid drops in humid gas flow.EFFECT: invention is aimed at improvement of wet gas compression systems and to reduce erosion.20 cl, 7 dwg
ethod of using effect of pulse charging, device therefor and method of modifying unit with piston compressor // 2607442
FIELD: oil and gas industry.SUBSTANCE: invention relates to units using piston compressors in oil and gas industry, in particular, for structural use of pressure pulsations. Apparatus comprises a device for gas circulation and a controller. In device for gas circulation there is a channel through which gas circulates between piston compressor and receiver, serving as a damper, which separates piston compressor from installation. Device for gas circulation is made so that its resonance frequency is substantially equal to frequency of execution of compression cycles in piston compressor. Controller is configured to control time of switching of valve, located between piston compressor and device for gas circulation.EFFECT: higher volumetric efficiency of piston compressor.10 cl, 10 dwg
Flow-through centrifugal compressor // 2607425
FIELD: machine building.SUBSTANCE: invention relates to machine building, more specifically, to turbo compressors. Flow-through centrifugal compressor comprises fixed casing with attachment flanges, inside it centrifugal wheel is arranged, mounted on electric motor rotor, which stator is fixed in casing trunnions, its casing is also made detachable in form of truncated ellipse in cross-section, centrifugal wheel is attached to rotor casing with brackets, and its blades follow casing outline along their length and also have screw bending relative to longitudinal axis and around it with provision of minimum gap between casing and blades and by their length occupy half and more than length of compressor inner cavity, which remaining part serves as diffuser.EFFECT: use of disclosed compressor allows to reduce its dimensions, increase air supply controllability, increase gas volumetric flow rate.1 cl, 2 dwg
Centrifugal fan // 2607116
FIELD: ventilation.SUBSTANCE: invention relates to centrifugal fan (1) containing the impeller (4), drive motor (3) of the impeller (4), housing (2) containing central part (17) to accommodate engine (3) and the impeller (4), and tangential discharge channel (18) communicating with said central part (17). Housing (2) has an inlet hole (15) in the central part (17) and outlet hole (16) in the tangential discharge channel (18), as well as system (4, 14, 28, 29) of engine cooling (3) containing the impeller (4), vent channel (31) functioning between tangential discharge channel (18) and central part (17), ring element (28) made integral with working wheel (4) and passes in axial direction from the impeller (4) around the engine (3), and multiple radial blades of the engine to create tangential cooling component, that is combined with cooling air flow, creating as a result of helical vortex RF around engine (3).EFFECT: invention is aimed at effective cooling of the engine.9 cl, 10 dwg
Gas pumping unit and method of its start-up // 2607113
FIELD: gas industry.SUBSTANCE: gas pumping unit is connected via gas pipelines with inlet and outlet reservoirs of a gas-pumping station connected with shutoff valves, respectively, to low and high pressure sections of the main gas pipeline, comprises a centrifugal gas compressor connected with feed and discharge gas pipelines to inlet and outlet reservoirs, respectively, by means of shutoff valves, and connected with a shaft to a gas turbine engine. In the gas turbine engine an air compressor is connected via pipelines with an air receiver through an air cleaner, and a power turbine is connected with an exhaust pipe to a recuperator of exhaust gases heat. Outlet pipeline of the turbine starter is connected to the inlet reservoir and is equipped with a check valve and a pressure gauge installed in the gas line at the inlet to the inlet reservoir. Candle branch pipe with shutoff valves are connected to this gas line ahead of the check valve. Feed gas pipeline to supply the turbine starter is connected with the outlet reservoir and is equipped with a pressure gauge at the outlet of the outlet reservoir, a gas pressure reducer and a gas cleaning filter. Feed gas pipeline to supply the gas compressor and the feed gas pipeline to supply the combustion chamber of the gas turbine engine are connected in parallel to the inlet reservoir with a gas line equipped with a gas cleaning filter. Feed gas pipeline to supply the gas compressor is equipped with a gas cooler and shutoff valves. Feed gas pipeline gas to supply the combustion chamber is passed through the cavity of the recuperator and is equipped with a control valve. Outlet gas pipeline of the gas compressor is equipped with a check valve and is connected to the feed gas pipeline to supply the turbine starter.EFFECT: invention is aimed at reducing emission of the main gas pipeline to the atmosphere at start-up of gas pumping units polluting the environment.13 cl, 1 dwg
ethod for conversion of low-grade heat energy // 2606847
FIELD: system for heating and cooling.SUBSTANCE: present invention relates to compression machines and systems in which air is the working fluid. Method for conversion of low-grade heat energy into high-potential heat energy includes a pneumatic energy generator required to create a closed air thermodynamic cycle, and low-potential heat source. Method includes the following: the pneumatic energy generator is activated by the mechanical energy of low-potential heat source; the generator is a hydraulic unit that transforms the water flow kinetic energy into the hydraulic shock potential energy with a subsequent mechanical work that involves the back-translational movement of the movable parts of walls of the hydraulic unit water conduit and air compression in the compression chambers that are arranged above the water conduit walls of the hydraulic unit that can move in the radial direction.EFFECT: invention enables to convert practically free hydraulic energy of multiple and widely spread low-pressure natural and artificial water courses into the pneumatic power with a subsequent conversion thereof into the high-potential heat energy in a closed thermodynamic cycle, mechanical work of compressed air expansion in an expansion machine and the energy for generation of cold.1 cl, 1 dwg
Linear peristaltic pump // 2606692
FIELD: medicine.SUBSTANCE: group of inventions relates to medical equipment. Improved linear peristaltic pump comprises central member mounted for rotation about a central shaft, several planetary gear mounted on axles in the central member, ring gear in a mesh engagement with each of the planetary gear, roller located on each of said planetary gear with an offset from the corresponding axis of the planetary gear. Flat compression surface located relative to said central shaft to allow insertion of flexible tube between the said flat surface compression and at least one of said several rollers. Motor is connected with the pump mechanism with possibility of relative rotation between the above central member and said ring gear so that said multiply rollers sequentially clamped flexible tube and move linearly along the said flat surface of the compression for pumping a fluid through a flexible tube. There are disclosed alternative versions of a peristaltic pump and transfer system for fluid using pump.EFFECT: invention provide simplification and ease of use and production of the pump.14 cl, 41 dwg
Propeller fan and air conditioner having same // 2606467
FIELD: ventilation.SUBSTANCE: designed is a propeller fan, which includes a hub with an oval shape in axial direction, set of blades, which extend from hub, and at least one stiffness rib, which extends from hub and is formed closer to front edge of each of multiple blades.EFFECT: due to this configuration propeller fan has efficiency and stiffness, and reduced weight and cost of material of propeller fan.12 cl, 8 dwg
High-speed axial fan impeller // 2606294
FIELD: engines and pumps.SUBSTANCE: invention relates to aircraft engine technology, particularly to aircraft gas turbine engines axial fans. High-speed axial fan impeller comprises disc, blades installed in disc and path flanges arranged on disc between blades with formation of blade channel inner surface. Blades are made with forward sweep in peripheral part, and leading and trailing edges generatrices projections on meridian plane contain convexity towards against flow, located in blades middle part. Leading edge generatrix projection on each blade meridian plane has straight line section. Straight line section height, as well as shape of working blade leading edge generatrix projection on meridian plane is defined by relationships protected by this invention.EFFECT: invention allows to increase high-speed axial fan impeller efficiency while maintaining gas dynamic stability and absence of impeller blades bending-torsional flutter.1 cl, 7 dwg
Centripetal impeller pump for transfer of heated non-uniform by density liquids // 2606290
FIELD: pumps.SUBSTANCE: invention relates to pump engineering. Pump includes inlet branch pipe, centripetal impeller, consisting of drive and covering discs, radial blades (4), bent along circle arc with radius (rl) with center of curvature (O2), displaced relative to center of rotation (O1), and combined with it orthogonal coordinate system beginning radially along axis (Y) at distance (Yo) and along axis (X) in direction of rotation from axis (Y) at distance (Xo), and conical bushing with decreasing diameter; supply, discharge and shaft, driven by induction motor. Wheel has inlet section, arranged along periphery on impeller (D1rk) outer diameter, and outlet cross-section, located in central part on inner diameter (D2rk=(0.3-0.7)D1rk). Supply is located from outer side, opposite to wheel inlet cross-section, and made in form of helical channel (10) with constant width in circumferential direction, equal to wheel width at inlet, and with height counted from wheel outer diameter D1 to helical channel wall inner surface (9), decreasing in proportion to angle of coverage (φcov), with height (hsk), counted from initial section height (h1sk) adjacent to inlet branch pipe and taken as coverage angle zero (φcov= 0°), corresponding to pump inlet area, to final height through one turn of current coverage angle (φcov=360°), equal to radial gap value (h2sk=δr), providing free rotation of wheel. Discharge is located on outer side, opposite to wheel outlet section (2pk), and made in form of annular diffuser, formed by outlet branch pipe wall inner surface with inner diameter and outer surface of wheel conical bushing.EFFECT: invention is aimed at achievement of maximum efficiency due to formation of convection from periphery to center at action of rotary acceleration.1 cl, 2 dwg
Pump and pump section // 2606196
FIELD: oil industry.SUBSTANCE: group of inventions relates to oil production from wells using electric pumps. Each pump section (1) has a central axis and comprises at least two pump stages (7). Pump stage (7) has a central axis and comprises motor (5) and one or more pump links (6). Pump includes outer housing (8), covering one or more inner housings (9). Outer housing (8) forms a cover around pump section (1) and has diameter larger than inner housings (9). Inner housing (9) forms a cover around at least one of at least two pump stages (7). Central axis of pump section (1) is shifted relative to central axis of pump stages (7) to form annular space (2) between outer housing (8) and inner housing (9).EFFECT: group of inventions is aimed at simplifying maintenance and optimisation of its operation.15 cl, 12 dwg
Fan unit // 2606194
FIELD: mechanisms.SUBSTANCE: fan unit includes housing, accommodating impeller and electric motor, driving impeller to create air flow. Nozzle is installed on housing for air flow release. Nozzle determines opening, through which air outside fan unit is drawn by air, released from nozzle. For detachable nozzle retention on housing nozzle retention mechanism is used. Mechanism may displace from first configuration, when nozzle is retained on housing, into second configuration, where nozzle is disengaged for its removal from housing.EFFECT: mechanism comprises press-on element to perform mechanism displacement from first configuration into second configuration.25 cl, 19 dwg
Small-size case for lowering temperature of submersible motor // 2606191
FIELD: oil industry.SUBSTANCE: invention relates to oil producing equipment, specifically, to borehole pump units with cooling systems of submersible oil-filled electric motors, and can be used in wells, where temperature of formation fluid is higher tan 90–100 °C with large diameters of wells. Device for reduction of temperature of electric motor is installed between housing of motor stator and lower base of engine. Small-sized case for reduction of temperature is fixed on housing of temperature reduction device. Flow of formation fluid is performed through holes in nuts, connecting small-sized case with device for reduction of temperature on surface of case of temperature reduction device. To increase rate of formation fluid flow, method uses seals made from swelling polymers to seal cavity between small-size case and production string. Due to formation fluid flow through holes in nuts on surface of case of device for reducing temperature an additional branch for heat removal into formation fluid is created.EFFECT: invention is aimed at cooling submersible electric motor of electric centrifugal pump with large diameters of wells obtaining sufficient for lowering temperature of engine speed of formation fluid due to reduction of annular space between device for reduction of temperature and production string and excluding overheating of engine without using special input module of pump or reworking to secure casing.1 cl, 1 dwg
Centrifugal compressor provided with a marker for measuring wear and a method of monitoring wear using said marker // 2606165
FIELD: engines and pumps.SUBSTANCE: centrifugal compressor of a gas turbine with a radial air inlet includes an impeller including blades and a casing for an air stream to flow in the blades of the impeller. Casing, covered with an abradable coating, includes an annular elbow zone in a substantially median part. Marking depressions (M1–M3) of predetermined depths, preferably in groups (G1, G2), are machined in the abradable coating of the zone. Examinations by endoscopy are successively performed to provide an image signal of the markers. Processing the endoscopic signal supplies a number of remaining markers and a criterion for decision on removing the engine is applied thereto.EFFECT: invention is aimed at accurate measurement of compressor erosion without dismantling of an engine, as well as simple installation.12 cl, 6 dwg
achines parts damage diagnostic method // 2606164
FIELD: machine building.SUBSTANCE: invention relates to machines parts damage diagnostics during their continuous operation and can be used for machine units technical state determining and providing their safe, resource saving operation. In disclosed diagnostics method vibration level is measured in machine housing informative points in informative frequency band, fixing vibration emissions, duration of intervals between emissions, plotting duration intervals trends and their relations, comparing obtained values with critical boundaries, and by comparison results judging on state of machine parts. According to invention observing vibration trend change during whole life cycle of machine; selecting vibration emissions in time; plotting duration intervals trends between vibration emissions and their relations; storing machine parts damage stages.EFFECT: invention is aimed at prevention of machines accidents under conditions of continuous operation.3 cl, 16 dwg
Telemetering equipment for systems with multiphase electric motor // 2606034
FIELD: engines and pumps.SUBSTANCE: group of inventions relates to a system of an electric submersible pump. System comprises a multiphase electric motor functionally connected with a hydraulic pump, herewith the motor contains a star connection point; a telemetry circuit functionally connected to the star connection point, herewith the telemetry circuit generates AC telemetry signals; a multiphase power cable functionally connected with the motor; and a tuning filter functionally connected with the multiphase power cable, herewith the tuning filter passes and amplifies the alternating current telemetry signals generated by the telemetry circuit. Telemetry signals of alternating current are transmitted to the multiphase power cable through the star connection point.EFFECT: proposed is a telemetering equipment for systems with a multiphase electric motor.20 cl, 22 dwg

Submersible electric-centrifugal pump control system // 2605871
FIELD: oil industry.SUBSTANCE: invention relates to oil production control systems and can be used for switching wells, equipped with electric centrifugal pump installation, to a stationary mode of operation. Submersible electric-centrifugal pump control system comprises unit (1) for frequency setting, multiplexer (2), frequency converter (3), output of which is connected to submersible electric-centrifugal pump (4), timer (5). First and second outputs of unit (1) for frequency setting are respectively connected to first and second inputs of multiplexer (2). Third input of multiplexer (2) is connected to output of timer (5). Output of multiplexer (2) is connected to input of frequency converter (3). Proposed control system of submersible electric-centrifugal pump has a simple technical implementation.EFFECT: simplified technical implementation of submersible electric-centrifugal pump control system.1 cl, 4 dwg

Installation of electric submersible hydraulic piston pump // 2605789
FIELD: oil and gas industry.SUBSTANCE: invention relates to oil and gas industry and can be used in oil production. Installation of electric submersible hydraulic piston pump comprises interconnected ground control station and a step-down transformer of power supply system, power cable and underground equipment suspended on tubing string to well head. Latter consists of hydraulic piston pump and engine with slide valve connected to tank for oil or hydraulic fluid and power volumetric pump with an electric motor. Base of submersible motor is connected to submersible oil-filled step-down transformer of two-step power supply system. Plug input is connected to power cable and phase windings on a cylindrical elongated in length of closed magnetic conductor mounted in cylindrical housing with a base and head with terminals for connection with motor.EFFECT: apparatus has low metal consumption and energy consumption, is compact and has a simple design, is easy to maintain, repair and operate.7 cl, 3 dwg
Powder material based on iron for stages of submersible centrifugal pumps // 2605719
FIELD: engines and pumps.SUBSTANCE: invention relates to powder materials based on iron for stages of submersible centrifugal pumps. Material contains 0.08-0.95 wt% of carbon, 4.0-16.0 wt% of nickel, 0.8-5.6 wt% of molybdenum, 1.2-6.8 wt% of tungsten, 1.8-14.2 wt% of cobalt and iron - balance.EFFECT: higher mechanical strength and corrosion resistance of material after ageing.1 cl
Powder material based on iron for stages of submersible centrifugal pumps // 2605718
FIELD: engines and pumps.SUBSTANCE: invention relates to powder materials based on iron for stages of submersible centrifugal pumps. Material contains 0.1-0.9 wt% of carbon, 6.0-26.0 wt% of nickel, 0.9-9.1 wt% of molybdenum, 0.06-2.75 wt% of tungsten and iron - balance.EFFECT: decreased residual porosity of structure of material after sintering, high mechanical strength and hardness of material.1 cl

Centrifugal compressor // 2605546
FIELD: machine building.SUBSTANCE: centrifugal compressor equipped with: case; rotor with impeller; and labyrinth seal, secured in case and located opposite to rotor. Labyrinth seal is installed, at least, in impeller suction compartment or at balanced piston, balancing rotor thrust. Diameter of rotor located opposite to labyrinth seal, increases or decreases in step manner. Labyrinth seal is formed from a multitude of grooves in axial direction, and each groove is provided with multiple pockets formed in circumferential direction.EFFECT: invention provides reducing leakage of sealing units of centrifugal compressor and higher damping characteristics of sealing assemblies.6 cl, 9 dwg

Piston hybrid machine // 2605492
FIELD: energy.SUBSTANCE: invention relates to power engineering and can be used in making pistons of high-efficiency machines for compression and transfer of gases and fluids. Machine comprises cylinder 1 and arranged therein with radial clearance 2 piston 3 with compressor 5 and pump 6 cavities. On cylindrical surface of piston there is groove 15, which divides its surface into two parts 16 and 17. Side surfaces of grooves are located at acute angle to axis of piston 3 and cylinder 1 in direction to compressor cavity 5. Volume of grooves is defined by expression: , where V is volume of groove, D is piston diameter, δ is radial clearance between piston and cylinder, is average differential pressure on piston during compression-injection of gas, L is length of cylindrical part of piston enclosed between lower shoulder of groove and lower end of piston, µ is dynamic viscosity of liquid, τ is time during which piston moves from lower dead point to upper dead point and vice versa, is average speed of piston, with which it moves from lower dead point to upper dead point and vice versa.EFFECT: higher efficiency at relatively large gaps and reliability of starting.1 cl, 2 dwg

Impeller // 2605487
FIELD: pumps.SUBSTANCE: group of inventions relates to centrifugal pumps. Impeller (2) for the centrifugal pump including first covering disc (4) having blades (8) and connected by welding to first covering disc (4) second covering disc (6). Each blade (8) has area (12) of the top, in which it contacts with second covering disc (6). At least one blade (8) of all blades (8) on first section (20) of area (12) of the top has a welded joint with second covering disc (6), herewith at least one second section (14) of area (12) of the top is free from the welded joint. One of covering discs (4, 6) is made of a transparent material, and the other of covering discs (4, 6) is made at least partially from a light-absorbing material.EFFECT: group of inventions is aimed at increasing efficiency of the pump.11 cl, 4 dwg

Device and method of controlling or limiting rotor orbit in screw engines or pumps // 2605475
FIELD: mining.SUBSTANCE: group of inventions is related to drilling, i.e. to rotary drilling hydraulic drives installed in borehole. Assembly of hydraulic downhole motor comprises screw motor having near end and far end and comprising stator and rotor. Stator comprises metal case, first elastomer material arranged in metal case, and first rigid material, arranged radially and directed inward from and at least partially covering first elastomer material. Rotor contains metal core, second elastomer material, located around metal core, and second rigid material arranged around second elastomer material. Stator first rigid material contacts rotor second rigid material.EFFECT: enabling limiting of rotor geometric center displacement trajectory.12 cl, 21 dwg

Hydraulic vane pump // 2605269
FIELD: pumps.SUBSTANCE: invention relates to hydraulic pumps. Hydraulic vane pump has cylindrical housing 1, hollow rotor 2, arranged inside housing 1 and shifted from housing 1 central axis, spring-loaded separating plate 5, suction and delivery branch pipes 8 and 9, installed outside from above housing 1. Outside from above housing 1 between suction and delivery branch pipes 8 and 9 pump is equipped with welded-in external box 10, inside of which internal box 11 is fixed, and balance beam 3, welded-in inside rotor 2. In box 10 plate 5 is installed, on left side of which are made vertical drain grooves 7 for inlet and discharge of fluid into box 11 during plate 5 upwards and downwards motion. Branch pipe 9 and dead zones with fluid under boxes 10 and 11 lower ends are connected to drain grooves 6 for fluid residue outlet from dead zone.EFFECT: invention is aimed at improvement of productivity.1 cl, 4 dwg

Fan and corresponding support element // 2604979
FIELD: ventilation.SUBSTANCE: present invention relates to a fan, in particular, an axial fan, comprising a support element with a wall ring and retained in wall ring electric fan motor with a fan impeller. Wall ring has on its outer circumference a hinge, which consists of a first hinge part connected with wall ring, and a second hinge part, rotary relative to first hinge part around a pivoted axis (X), wherein second hinged part is made in form of a terminal box to accommodate electrical connecting elements. Invention also relates to a support element for such a fan.EFFECT: invention is aimed at simplifying maintenance of fan.16 cl, 8 dwg

Compressor layout // 2604964
FIELD: machine building.SUBSTANCE: compressor layout, at least, from single-stage axial compressor and, at least, from single-stage centrifugal compressor, wherein on rotor side structural units on stage rotor side or on each stage of axial compressor side and structural units on stage rotor side or each stage of centrifugal compressor side correspondingly act on common drive shaft. At that, ratio between shaft maximum diameter in axial compressor section and shaft wheel minimum radial mounting diameter on centrifugal compressor section is from 1.5 to 3.0.EFFECT: invention is aimed at increase of unit pressure.5 cl, 1 dwg

Test bench for end seals of shafts of circulating pumps // 2604778
FIELD: machine building.SUBSTANCE: invention relates to machine building, particularly, to benches for testing end seals of shafts of circulating pumps. Test bench for end seals of shafts of circulating pumps comprises a pedestal with a housing. In housing there are vertically installed two supports shaft. On shaft of stand there is a bushing-simulator of pump shaft. End seal of pump is installed on bushing-simulator and pressure housing. Motor is arranged in lower part of stand and is connected to shaft of stand via coupling and with pressure housing through a support. Pressure housing is equipped with power shaft, in which there are shaft supports. In upper part of pressure housing and shaft there is a groove seal, consisting of partition and reflector, end seal is supported on bushing-simulator through an adjustment ring. Between motor and shaft through adjustment ring there is a flexible coupling, and pressure housing is installed on base through a system of wedge-like washers.EFFECT: higher quality of performed tests of end seals and higher reliability of stand.1 cl, 1 dwg

System for controlling submersible centrifugal pump and cluster pump station // 2604473
FIELD: oil industry.SUBSTANCE: invention relates to oil production control systems and can be used for transforming wells equipped with a centrifugal pump installation into a stationary operation mode, as well as during prolonged operation of a well. System for controlling a submersible centrifugal pump and a cluster pump station comprises unit (1) for setting liquid dynamic level, unit (2) for setting rotation frequency, intensity setting device (3), proportional-integral regulators (4) and (5), frequency converters (6) and (7), submersible electric centrifugal pump (8), cluster pump station (9), sensor (10) for liquid dynamic level.EFFECT: invention is aimed at simplifying technical implementation of system for controlling a submersible centrifugal pump and a cluster pump station.1 cl, 4 dwg

ethod of submersible oil pumps gas separators testing and test bench to implement this method // 2604463
FIELD: machine building.SUBSTANCE: group of inventions relates to gas separators testing, enabling submersible oil pumps operation under conditions of increased gas content. Method of gas separators testing involves injection of liquid and gas into casing string model annular space, formation of working fluid in form of liquid-gas mixture, liquid-gas mixture separation using tested gas separator to degassed liquid and free gas. Output of degassed liquid is carried out via devices hydraulically connected with gas separator from casing string model. Separated free gas discharge is carried out via gas separator gas discharge holes, made in its upper part, into column annular space filled with working fluid. At that, controlling foaming properties and viscosity of working fluid circulating volume, determination of volumetric flow rates of liquid and gas at inlet to casing string model and separated gas volumetric flow rate at output of tested gas separator. According to determined data calculating gas content of working liquid, supplied into casing string model, residual gas content, as well as gas separator separation coefficient. Formation of working fluid is performed by means of testbed rotary disperser, which allows to control gas in working fluid degree of dispersion.EFFECT: inventions are aimed at creation during tests of conditions, maximally close to real operation conditions in well, testing process simplification, reducing duration of their performance and obtaining reliable and accurate results.2 cl, 1 dwg

Fanwheel attachment using expansion-tolerant conically tapered rings // 2604407
FIELD: ventilation.SUBSTANCE: invention relates to a fan comprising at least one wheel which is designed to collaborate with a fluid and which is attached to a shaft, itself able to rotate about axis (X-X′) of rotation, by clamping between a first supporting member and a second supporting member which are held by said shaft and forced axially toward one another. First supporting member has, where it meets wheel, a first substantially conical bearing surface, which is substantially borne by first generator cone (C12) of which vertex (F12), known as "first focal point", is directed toward second supporting member and of which vertex half angle (α12) is greater than grip angle corresponding to coefficient of friction between said first bearing surface and wheel.EFFECT: higher reliability of fan.19 cl, 16 dwg

ethod for cleaning underwater compressor, where cleaning liquid is obtained from multiphase processed fluid // 2603506
FIELD: gas industry.SUBSTANCE: described are methods and device for operation and/or cleaning compressor. In embodiment, first fluid containing gas, can be passed through compressor, wherein compressor operates, compressing first fluid. Second fluid can be passed through compressor, wherein second fluid contains gas and liquid from at least one well. Second fluid can be passed through compressor during some limited time period for cleaning surfaces inside compressor, compressor operates therein compressing second fluid.EFFECT: invention is aimed at cleaning of compressor and higher operation reliability.25 cl, 5 dwg

Piston compressor with jacket cooling // 2603498
FIELD: machine building.SUBSTANCE: invention relates to compressor building industry and can be used in piston compressors with cylinder-piston group independent cooling. Compressor comprises cylinder 1 with differential piston 2 and two working volumes 4 and 5. Suction cavities 6 and 7 are connected with gas source and working volumes 4 and 5 through suction valves 8 and 9. Pressure cavities 10 and 11 are connected with gas consumer and working volumes 4 and 5 through pressure valves 12 and 13. Around cylinder 1 there is liquid cooling jacket 14. Suction cavities 6 and 7 are connected with fluid jacket 14 through heat exchangers 15 and 16, part of working volume of which is connected to suction cavities, located above coolant level in cooling jacket. Heat exchangers 15 and 16 are vessels communicating via jacket 14. Liquid continuously moving by heat exchangers 15 and 16 and in jacket 14 removes compression heat from cylinder 1.EFFECT: decreased overall dimensions when using liquid cooling, its simplified arrangement, reducing specific costs for gas compression.1 cl, 4 dwg

Turbojet engine rotor shaft garter seal, turbojet engine rotor shaft sealing garter, jet turbine engine garter seal contact bushing, turbojet engine rotor shaft support // 2603387
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. Aircraft turbojet engine low-pressure compressor rotor shaft garter contact sealing is installed between oil cavity and front support breathing cavity. Garter seal includes contact bushing with movable abuting to garter sealing rings contact surfaces, resilient-movably installed in roller bearing housing. Contact bushing consists of inner and outer rings. Outer ring is made with internal spiral fins. Garter consists of three multi-section rings. Its inner sealing and radially embracing outer rings are installed in garter on front side. Third ring is made rear and adjoins first two with side edge. Each of garter rings is made of local sections assembled with angular frequency of γs.b.u.=(0.47÷0.79) [unit/rad]. Back ring is made with radial height corresponding to total radial height Σh of garter internal sealing and external rings. Garter rings are equipped with discharge air channels. Garter external and rear rings outer surfaces are equipped with annular slot for spring rings tightening section. From axial displacement garter is elastically fixed by thrust and retaining rings. For this purpose in each rear ring section at least two blind holes are made, in which compression springs are installed resting against stop ring. Against displacement along circumference each section of external and rear rings is facing towards locking elements. Each section of inner ring is shifted in garter relative to locking element axial plane of symmetry by half of section arc length and equipped with in middle part with prismatic recess to fixing by locking element.EFFECT: group of inventions technical result consists in twofold increasing of compressor service life and duration of engine interrepair operation by 18-20 % due to reduced wear of AC TJE LPC support elements.14 cl, 2 dwg

Turbojet engine low-pressure compressor third stage rotor impeller (versions) // 2603384
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. Jet engine low-pressure compressor (JTE LPC) rotor shaft third stage impeller includes disc, including hub with central hole, web and rim, as well as blades each having tail and wing with profile formed by concave pressure side and convex back. Disc rim is connected with web to make circular conical inclined flanges. Disc body is made with variable in height section conically narrowing from the hub to the rim. Hub is made symmetrically developed relative to web average conditional plane normal to rotor shaft axis, with axial width exceeding web root part thickness in (3.5÷5.0) times. Disc rim is equipped with set of blades fixation grooves uniformly distributed along disc perimeter. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane perpendicular to blade root radial axis makes, angle of α installation of the blade root defined in the range of values α=(18÷26)°. Blade has, variable by blade height, angle of root profile installation relative to blade rim grid profile front line, decreasing with radial distance from rotor axis with gradient Gu.p=(206.4÷296.8) [deg/m]. Besides, root inlet and outlet edges are made diverging to peripheral blade end with gradient Gw. h. of their connecting chord increase equal to Gw.h.=(6.9÷9.9)·10-2 [m/m].EFFECT: invention allows to increase efficiency and increase gas-dynamic stability margin at all operation modes of compressor, while increasing LPC rotor impeller service life without increase of material consumption.23 cl, 5 dwg

Turbojet engine low-pressure compressor second stage rotor impeller (versions) // 2603383
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. Second stage rotor impeller comprises disc and blade ring. Disc is made in form of one-piece element including hub with central hole, rim and web, provided with inclined flanges for permanent connection with shaft adjacent stages mating contact elements. Blades each contain tail and wing with profile formed by concave pressure side and convex back, coupled by inlet and outlet edges. Disc web is made with variable in height section, conically narrowing from hub to rim with gradient of Gp thickness reducing in specified direction, equal to Gp=(0.05÷0.07) [m/m]. Wheel rim outer surface is made with radius increasing in LPC axial cross-section towards working fluid flow. Slots for fitting blade roots are uniformly spaced apart along disc rim perimeter and made with mutually inclined side faces, having in cross section configuration of lock joint with blade root element. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane makes, normal to blade root radial axis, angle of α blade root installation defined in range of values α=(17÷25)°. Root inlet and outlet edges are made diverging to peripheral blade end with gradient Gw.h. their connecting chord increase, equal to Gw.h.=(6.6÷9.5)∙10-2 [m/m].EFFECT: invention allows to increase efficiency and increase GDS margin at all operation modes of compressor while increasing LPC rotor impeller service life without increase of material consumption.21 cl, 5 dwg

Gas turbine engine low pressure compressor rotor impeller (versions) // 2603380
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. Gas turbine engine low-pressure compressor (GTE LPC) rotor shaft fourth stage impeller includes disc, including hub with central hole, web and rim, as well as blades each having tail and wing with profile formed by concave pressure side and convex back. Disc rim is connected to web to make circular flanges. Disc rim is equipped with set of blades fixation grooves uniformly distributed along disc perimeter. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane makes, normal to blade root radial axis, angle of α blade root installation defined in range of values α=(20.1÷29.6)°. Blade has variable on height of feather an angle γ of installation of feather profile relative to front line of profile grid of blade rim, decreasing with radial distance from rotor axis with gradient Gu.p=(217.0÷311.9) [deg/m]. Besides, blade root is made with thickness variable along blade width and height. Maximum thickness of blade root profile is greatest in root section and decreasing on height to peripheral end with gradient Gu.t.=(1.82÷2.62)·10-2 [m/m].EFFECT: invention allows to increase efficiency and increase gas-dynamic stability (GDS) margin at all operation modes of compressor while increasing LPC rotor impeller service life without increase of material consumption.17 cl, 6 dwg

Gas turbine engine low pressure compressor rotor impeller (versions) // 2603379
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. LPC GTE third stage rotor shaft impeller comprises disc hub with central hole, web and rim, as well as blades each having tail and wing with profile formed by concave pressure side and convex back. Disc rim is connected with web to make different-arm circular conical inclined flanges. Disc radius Rd from axis to rim outer surface in web middle plane is (0.59÷0.84) from radius Rp.p. of flow part peripheral contour in said plane. Disc rim is equipped with set of blades fixation grooves uniformly distributed along disc perimeter. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane makes, normal to blade root radial axis, angle of α blade root installation defined in range of values α=(17÷25)°. Blade has, variable by blade height, angle of root profile installation relative to blade rim grid profile front line, decreasing with radial distance from rotor axis with gradient Gu.p=(208.7÷300.0) [deg/m]. Besides, blade root is made with thickness variable along blade width and height. Maximum thickness of blade feather profile is highest in root section and height decreasing by blade root height to peripheral end with gradient of Gu.t.=(2.17÷3.12)∙10-2 [m/m].EFFECT: invention allows increasing efficiency and improve gas-dynamic stability margin at all compressor operating modes while increasing LPC rotor impeller service life without increase of material consumption.19 cl, 6 dwg

Gas turbine engine low pressure compressor rotor impeller (versions) // 2603377
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. Gas turbine engine low-pressure compressor (GTE LPC) rotor shaft first stage impeller includes disk, including hub with central hole, web and rim, as well as blades each having tail and wing with profile formed by concave pressure side and convex back. Disk rim is connected with web to make different-arm circular conical inclined flanges. Rim outer surface is made with inclination relative to rotor shaft axis, which radius is monotonously varies towards working fluid flow with radial expansion gradient of Gon=(0.32÷0.46) [m/m]. Disk rim is equipped with set of blades fixation grooves uniformly distributed along disk perimeter. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane perpendicular to blade root radial axis makes, angle of α blade root installation defined in range of values α=(16.8÷24.1)°. Blade has variable on height of feather an angle γ of installation of feather profile relative to front line of profile grid of blade rim, decreasing with radial distance from rotor axis with gradient Gu.p=(144.9÷208.3) [deg/m]. Besides, blade root is made with thickness variable along blade width and height. Maximum thickness of blade feather profile is highest in root section and decreases on height of feather to peripheral end with gradient Gu.t.=(1.0÷1.44)·10-2 [m/m].EFFECT: invention allows to increase efficiency and increase gas-dynamic stability margin at all operation modes of compressor while increasing LPC rotor impeller service life without increase of material consumption.19 cl, 6 dwg

Fourth stage disc of turbojet engine low-pressure compressor rotor shaft (versions) // 2603307
FIELD: aircraft engineering.SUBSTANCE: invention relates to aircraft engine building, namely, to aircraft turbojet engine low-pressure compressors. Disc is composed as a single-piece element including a hub with a central hole, a rim with front and rear shelves separated by an annular slot and a body. Rim front shelf is provided with a circular element with labyrinth ledges, and the disc circular element end face is made for a non-detachable connection with a mating circular connecting element of the third stage. Disc body is made with variable in height section narrowing from the hub to the rim. Hub has an axial width exceeding thickness of the root part (5.5÷7.3) times. Average radius of the disc from the rotor shaft axis to the outer surface of the rim in conditional plane of symmetry of the body is (0.54÷0.78) of the radius of peripheral circuit of the engine flow section.EFFECT: technical result of the invention is improvement of efficiency and increasing life under all operating conditions of the compressor while increasing life of impeller disc of the last fourth stage impeller without increasing the disc material input.3 cl, 1 dwg

Gas turbine engine low-pressure compressor rotor first stage disc (versions) // 2603304
FIELD: engines.SUBSTANCE: invention relates to engine building. GTE low-pressure compressor rotor first stage disc is made in form of single component, including rim changing into circular web, reinforced by hub, equipped with central bore. Said ring is asymmetrically connected with disc web to make different-arm circular conical inclined flanges. Disc radius Rd from axis to rim outer surface in web middle plane is (0.42÷0.61) of flow part peripheral contour radius Rf.p. in said plane. Rim outer surface is made with inclination relative to rotor shaft axis, coinciding with flow section inner contour generatrix inclination angle, which radius is monotonously varies towards working fluid flow with radial expansion gradient of Gon= (0.32÷0.46) [m/m]. Disc rim is equipped with set of blades fixation grooves uniformly distributed along disk perimeter. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane makes, perpendicular to blade root radial axis, blade root angle of α installation, defined in range of values α= (16.8÷24.1)°. Web is provided with conical circular element, made with generatrix inclination angle to disc geometrical axis, larger than rim outer surface generatrix inclination angle.EFFECT: enabling higher efficiency and expanded range of compressor gas-dynamic stability modes for 2,1 % while increasing disc service life in 2 times.21 cl, 4 dwg

Pump unit with electric drive // 2603233
FIELD: pumps.SUBSTANCE: invention relates to devices for pumping fluid media and can be used in industry, on transport and in everyday life in pumping liquids, other incompressible and compressible fluids, as well as in oil production from wells. Pump unit consists of a housing, electrically driven armature located in housing, a displacer, located in front part of housing. Electrically driven armature and displacer are connected. Electrically driven armature consists of series-connected rear electrically driven spacer unit, electrically driven movement unit, configured for displacement relative to housing in direction of change of its length, and front electrically driven spacer unit. In contrast to nearest analogue at least one electrically driven spacer unit is a magnetostrictive spacer unit and/or electrically driven movement unit is a magnetostrictive movement unit. Task of invention consists in widening range of existing equipment.EFFECT: technical result achieved by implementing present invention is realisation of said purpose.25 cl, 10 dwg

Gas turbine engine low-pressure compressor rotor third stage disc (versions) // 2603222
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. GTE low-pressure compressor rotor third stage disc is made in form of single component, including rim changing into circular web, reinforced by hub, having central opening. Disc radius Rd from axis to rim outer surface in web middle plane is (0.59÷0.84) of flow part peripheral contour in said plane radius Rr.p. Rim is asymmetrically connected with disc web with formation of different-arm circular flanges. Rear flange is made with possibility of permanent connection with next stage disc via spacer. For permanent joint with the disc of the next stage bores for fasteners are made via said spacer in disc web. Disc ring is provided with the system of grooves for securing of blades. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane makes, normal to blade root radial axis, angle of α blade root installation defined in range of values α=(17÷25)°. Slots are uniformly spaced apart along disc perimeter and made with side faces in cross section, forming element of lock joint with blade root. Web is provided with conical circular element, made with generatrix inclination angle to disc geometrical axis of not less than 48°. Enabling higher efficiency and expanded range of compressor gas-dynamic stability modes for 2.1 % while increasing disc service life in 2 times.EFFECT: enabling higher efficiency.6 cl, 4 dwg

Gas turbine engine low-pressure compressor rotor last stage disc // 2603220
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. GTE low-pressure compressor rotor last stage disc is made in form of single component, including rim changing into circular web, reinforced by hub, equipped with central opening. Rim is symmetrically connected with disc web with formation of equal-arm circular flanges. Disc web can be articulated via spacer with the disc flange of the previous stage. Disc rim is made with radius increasing towards working fluid flow in LPC axial section and with rim outer surface generatrix angle φ=(1.8÷3.4)° relative to rotor shaft axis. Disc ring is provided with the system of grooves for securing of blades. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane makes, perpendicular to blade foil lengthwise axis, blade root installation angle of α, defined in range of values (20.1÷29.2)°. Slots are uniformly spaced apart along disc perimeter with angular frequency of Yu=(5.8÷7.9) [unit/rad] and are made with side faces in cross section, forming element of lock joint with blade root. Enabling higher efficiency and expanded range of compressor gas-dynamic stability modes for 2.1 % while increasing disc service life in 2 times.EFFECT: enabling higher efficiency.3 cl, 4 dwg

Third stage disc of turbojet engine low-pressure compressor rotor shaft (versions) // 2603219
FIELD: aircraft engineering.SUBSTANCE: invention relates to aircraft engine building, namely, to aircraft turbojet engine low-pressure compressors. Third stage disc is made in the form of a single-piece element including a hub with a hole and equipped with a circular conical bearing element with an inclination angle and a radius of an output contact edge equal to response parameters of the said conical diaphragm of the shaft rear support journal. Disc includes a rim with slots for fitting the impeller blade roots and a body. Body is equipped in the upper part with circular shelves with ledges of a labyrinth seal. Disc body is made with variable in height section conically narrowing from the hub to the rim. Hub has an axial width exceeding thickness of the root part (3.5÷5.0) times. Average radius of the disc from the rotor shaft axis to the outer surface of the rim in conditional plane of symmetry of the body is (0.51÷0.73) of the radius of peripheral circuit of the engine flow section. Disc rim outer surface generatrix inclination angle to the rotor shaft axis makes φ=(5÷7)°. Slots are spaced along the perimeter of the disc rim with the angular frequency of Yp=(7.3÷10.4) [unit/rad]. Longitudinal axis of the slot sole makes with the rotor shaft axis in projection on a plane a parallel to the rotor shaft axis, angle of α installation of the blade root defined in the range of values α=(18÷26)°.EFFECT: technical result of the invention is improvement of efficiency and increasing life under all operating conditions of the compressor while increasing life of the disc without increasing the disc material input.11 cl, 4 dwg

Gas turbine engine low-pressure compressor rotor second stage disc (versions) // 2603218
FIELD: engines and pumps.SUBSTANCE: invention relates to engine building. GTE low-pressure compressor rotor second stage disc is made in form of single component, including rim changing into circular web, reinforced by hub, having central opening. Said ring is asymmetrically connected with disc web to make different-arm circular conical inclined flanges. Disc rim is made with radius increasing towards working fluid flow in LPC axial section and rim outer surface generatrix angle relative to rotor shaft axis, identical to axial angle relative to same flow section inner circuit generatrix axis. Disc radius Rd from axis to rim outer surface in web middle plane is (0.54÷0.77) from radius Rp.p. of flow part peripheral contour in said plane. Disc ring is provided with the system of grooves for securing of blades. Each slot longitudinal axis with rotor shaft axis in projection on arbitrary axial plane makes, normal to blade root radial axis, angle of α blade root installation defined in range of values α=(19÷27)°. Slots are uniformly spaced apart along disc perimeter with angular frequency of Yu=(6.0÷8.2) [unit/rad] and are made with side faces in cross section, forming element of lock joint with blade root. Enabling higher efficiency and expanded range of compressor gas-dynamic stability modes for 2.1 % while increasing disc service life in 2 times.EFFECT: enabling higher efficiency.17 cl, 4 dwg

First stage disc of turbojet engine low-pressure compressor rotor shaft (versions) // 2603217
FIELD: aircraft engineering.SUBSTANCE: invention relates to aircraft engine building, namely, to aircraft turbojet engine low-pressure compressors. Disc is composed as a single-piece element including a rim, a hub with a central hole and a body with variable in height cross section conically narrowing from the hub to the rim. Hub is made integral with the rotor shaft front bearing journal developed on one side to the LPC inlet. Average radius of the disc from the rotor axis to the outer surface of the rim in conditional plane of symmetry of the body is (0.37÷0.49) of the radius of peripheral circuit of the engine flow section. Disc rim outer surface generatrix inclination angle to the rotor shaft axis makes φ=(17÷25)°. Gradient of radial expansion of the rim Grim is determined within the range of Grim=(0.28÷0.38) [m/m]. Slots for fitting blade roots are uniformly spaced apart along the perimeter of the disc rim with the angular frequency of Yp=(4.6÷6.2) [unit/rad]. Longitudinal axis of the slot sole makes with the rotor shaft axis angle of α installation of the blade root defined in the range of values α=(16÷22)°. Lateral faces of the slot are made opposite and inclined to each other to form angles β between the side face and the slot sole equal to β=(63÷78)° and are conjugated with the sole through roundings with a radius r equal to (0.33÷0.38) of width of the slot head.EFFECT: technical result of the invention is improvement of efficiency and increasing life under all operating conditions of the compressor while increasing life of impeller disc of the first stage impeller without increasing the disc material input.23 cl, 5 dwg

Second stage disc of turbojet engine low-pressure compressor rotor shaft (versions) // 2603215
FIELD: aircraft engineering.SUBSTANCE: invention relates to aircraft engine building, namely, to aircraft turbojet engine low-pressure compressors. Second stage disc of a turbojet engine low-pressure compressor rotor: the disc is composed as a single-piece element including a hub with a central hole, a rim with slots for fitting blade roots and a body equipped with inclined shelves. Disc body is made with variable in height section conically narrowing from the hub to the rim with gradient (G)r.t. of reduced thickness in a specified direction equal to Gr.t.=(0.05÷0.07) [m/m]. Average radius of the disc from the rotor shaft axis to the outer surface of the rim in conditional plane of symmetry of the body is (0.46÷0.65) of the radius of peripheral circuit of the engine flow section. Disc rim outer surface generatrix inclination angle to the rotor shaft axis makes φ=(10÷15)°. Gradient of radial expansion of the rim Grim is determined within the range of Grim=(0.18÷0.26) [m/m]. Slots for fitting blade roots are uniformly spaced apart along the perimeter of the disc rim with the angular frequency of Yp=(5.4÷7.7) [unit/rad]. Longitudinal axis of the slot makes with the rotor shaft axis in projection on a plane a parallel to the rotor shaft axis, angle of α installation of the blade root defined in the range of values α=(17÷25)°.EFFECT: technical result of the invention is improvement of efficiency and increasing life under all operating conditions of the compressor while increasing life of impeller disc of the second stage impeller without increasing the disc material input.19 cl, 4 dwg

ethod and pump for transfer of highly viscous fluids // 2603214
FIELD: pumps.SUBSTANCE: group of inventions relates to pumps for transfer of highly viscous fluids. Pump (1) for transfer of highly viscous fluids comprises casing (3), input (7), output (8) and closed impeller (5), with possibility of rotation arranged in casing (3) between input and output. Pump has side chamber (6) between impeller disk (4) and casing (3) and includes sealing elements (7a, 7b, 8a, 8b) between impeller (5) and casing (3) on impeller inlet side and outlet side to limit reverse flow through side chamber (6) and to provide fluid medium heating contained in side chamber. Pump has delivery channel (9), leading into side chamber (6), to delivery fluid medium into side chamber (6) in order to reduce friction between impeller disk (4) and casing (3).EFFECT: group of inventions is aimed at improvement of highly viscosity fluids transfer efficiency.15 cl, 5 dwg
 
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