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Gas turbine engine and disassembly of its front part Proposed engine comprises central assembly support, gearing assembly and flexible support. Central assembly support makes an inner circular wall for axial stage and comprises first spline joint elements. Gearing assembly engages shaft and fan running about axis. Flexible support coupled said gearing assembly with central assembly support and comprises second spline joint elements to be engaged with aforesaid first spline joint elements to transmit torque there between. In disassembly of engine front section, access is allowed to forward-facing fasteners that secure central assembly support to flexible support, gearing housing to remove said fasteners. Then, first and second spline joint elements made at central assembly support and flexible support are disengaged. |
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Proposed assembly comprises bearing structure and multiple sectors, each including integral element of composite with ceramic matrix. Every said sector has first part making the circular base with inner surface that defines the turbine housing inner surface and outer surface wherefrom extend two parts that make the lugs. Said lugs have ends hooked in cases in housing bearing structure. Housing sectors feature U-like section while ends of said lugs are retained without radial clearance by housing bearing structure. |
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Thermoelectric energy accumulation system, and thermoelectric energy accumulation method Invention relates to power engineering. A thermoelectric energy accumulation system includes a heat exchanger containing a thermoaccumulating medium, and a working medium circuit for pumping of the working medium through the heat exchanger, by means of which heat exchange is performed between the working medium and the thermoaccumulating medium. At heat exchange with the thermoaccumulating medium the working medium is subject to transcritical cooling in a charging cycle and to transcritical heating in a discharging cycle. The improved efficiency of a closed cycle is achieved owing to minimising in working cycles of maximum temperature difference, between temperature of the working medium and the thermoaccumulating medium. Besides, according to this invention, an accumulation method of thermoelectric energy in the system is presented. |
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Method for determination of reducer state in its appropriate tank Invention relates to automotive industry. Note here that reducer is used for neutralisation of ICE exhaust gases. Simple means are used to inform the ICE control unit about quality of reducer contained in said appropriate tank. For this the steps that follow are applied. Amounts of reducer filled in the tank and forced therefrom are defined and recorded with the help of level transducer during the entire life of exhaust gas neutraliser. Reducer temperature in tanks is defined and recorded by appropriate transducer during the entire life of exhaust gas neutraliser. Ultrasound wave propagation rate in reducer is defined and recorded by ultrasound transceiver. Reducer state in control unit is defined by above said parameters. |
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Method and system for gas leaks control in turbine, and gas turbine Invention relates to gas turbines. Note here that several seals can be used arranged serially. Note also that every said seal can decrease backflow pressure at turbine element inlet. Besides, one or several channels can be made to direct, at least a portion of said gas backflow from several points without the boundaries of said several seals to appropriate points within the boundaries of turbine gas stage. |
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Heat-tube cooling circuit of turbine blade Heat-tube cooling circuit of a turbine includes at least one cooling cavity located in radial direction between the shank and the end face of the blade and connected to an air supply cavity and outlet holes, the walls of which are provided with hemispherical cavities arranged in a staggered order. Hemispherical cavities of opposite walls of the cooling cavity are located opposite each other, and upper and lower hemispheres of bispherical heat tubes are located in them. Each bispherical heat tube consists of upper and lower spheres. Spheres are made from heat-resistant material with high thermal conductivity and connected to each other through a hole, in which a transport wick is passed. The wick is made from porous material and adjoins opposite sections of inner surfaces of upper and lower spheres of a bispherical heat tube, which are covered with a grid made of porous material strips. Lower and upper hemispheres of upper and lower bispherical heat tubes are located in the cooling cavity. Pores of porous material of the wick and the grid are filled with working liquid. |
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Drop catcher for centrifugal compressor Group of inventions relates to a centrifugal compressor, in particular, to drop catchers to remove liquid from a compressor as well as to the method to improve efficiency of centrifugal compressor performance in gas turbine engines. A device for catching liquid drops set in the compressor impeller comprises the first hole set on the impeller surface and made so that to receiver liquid drops, and a channel set below the said hole and communicating with it by flow. The channel is made so that the liquid drops are led out from the first hole and the compressor impeller. A centrifugal compressor set in a gas turbine engine comprises a centrifugal impeller which includes rotating solid blades each of them having a root part and an end part and providing for air compression in the centrifugal gravitational field, and units for catching the liquid drops. According to the method for improving the efficiency of centrifugal compressor performance by the removal of liquid drops, a liquid drop catching device is installed in the part of the centrifugal impeller effective from the point of view of catching the liquid drops in the place of their collision with the centrifugal impeller; afterwards the liquid drops are caught in the hole of the said device and removed from the centrifugal compressor by being led from the hole to the channel in the said device. |
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Binding metal coating with high gamma/gamma' transition temperature, and component Invention relates to metallurgy, and namely to a metal coating with γ- and γ' phases. The metal coating from nickel-based alloy for gas turbine parts includes γ- and γ'-phases; with that, the alloy contains the following, wt %: iron 0.5-5, cobalt at least 1, chrome at least 1, aluminium at least 1, and when necessary, tantalum (Ta) and/or yttrium (Y). |
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Alloy, protective layer and part Invention relates to metallurgy, and namely to nickel-based alloys of protective coatings of parts of a gas turbine. Nickel-based alloy for the protective coating of gas turbine parts contains the following, wt %: cobalt 24-26, chrome 16-25, aluminium 9-12, yttrium 0.1-0.7 and/or at least one metal of the group containing scandium and rare-earth elements, non-obligatorily, phosphorus 0.1-0.7, non-obligatorily, silicon 0.1-0.6; it does not contain rhenium; nickel is the rest. |
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Invention relates to heat power engineering and can be used in heat exchange systems intended for recovery and use of waste heat. A system operating as per Rankine organic cycle and intended for recovery and use of waste heat supplied from a waste heat source by means of a closed circuit of working fluid medium includes at least one evaporator. In addition, the above evaporator includes a surface-treated substrate for contribution to bubble boiling of working fluid medium to provide restriction of working fluid medium temperature to the value below the specified temperature. Besides, the evaporator is made so that evaporation of working fluid medium is provided by using waste heat supplied from the waste heat source. |
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Proposed device comprises cylindrical case (1) with end front and rear covers (2) and (3), respectively. Said case (1) houses perforated cylindrical insert (4), aligned perforated inlet pipe (5) and outlet pipe (6), three crosswise webs (7), (8), (9), dividing said case into four chambers (10)-(13), adapter (14) and conical spreader (15). Basalt fibre (16) is arranged between case (1) and insert (4). Said webs (7), (8), (9) are perforated. Inlet pipe (5) is arranged in two chambers (10) and (11) while its perforation has five zones (17)-(21) and trapezoidal holes formed by tangential guise and round holes. Confuser adapter (14) is fitted inside outlet pipe (6) and connected with its inlet end by confuser larger base. Spreader (15) is arranged at inlet pipe (5) discharge end and directed there inside. |
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Electric energy generating device using waste-gas heat Claim describes electric energy generating device (1) using waste gas (2) heat formed during operation of a combustion engine (3), the device includes a generator (4) with inlet (5) and outlet (6) for waste gas and a heat exchange section (7) between them with a variety of flowing channels (8) for waste gas (2), which are surrounded at least partially by thermoelectric cells (9) connected by a heat-conducting connection to the cooler (11) by their side (10) faced away from the flowing channels (8). |
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Gas turbine comprises stator blade to direct hot combustion gases to rotor blades. Stator blade comprises shroud arranged at the blade radially inner side relative to engine rotational axis. Said shroud has the part of trailing edge downstream of hot gas flow behind the stator blade. Besides, gas turbine incorporates structural and cooling system to direct coolant to top upstream end of the shroud trailing edge. Said edge is turned radially inward relative to turbine rotational axis. Structural and cooling system also directs said coolant axially towards the edge bottom downstream end. Said coolant cools training edge part at flowing over said edge. Said edge includes turbulence promoters to up the heat transfer from the part of trailing edge at coolant flowing over said edge. Said turbulence promoters extend axially across the turbine rotational axis. The edge turned radially inward comprises several wall webs extending axially to separate said edge to several separate cooling channels extending axially. Turbulence promoters of said edge are arranged in cooling channels. |
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Invention can be used in internal combustion engines. Cylinder head comprises body (1) with fire bottom with valve and injector bores, webs (5) with holes (6) for their cooling between valves bores, cooling chamber (7) and openings (8) for coolant feed. Inserts (9) of lower-heat-conductivity factor material are fitted in coolant feed holes (8). Inserts (10) of lower-heat-conductivity factor material are fitted in holes (6) of webs (5) over the fire bottom periphery length. |
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Method of electronic system cooling in mechanical hardware, particularly, in gearboxes Invention relates to cooling of electronic components, particularly, those of gearboxes. Proposed method is based on cooling of electronic unit (20) arranged in hardware chamber (11) located inside the housing of gearbox (1) by coolant flow circulating through water jacket. At the same time said coolant jets are measured by turbine connected with pulse magnetic transducer. Besides, temperature transducer measures coolant temperature. When coolant does not flow through water jacket and/or coolant temperature exceeds preset threshold signalling system is switched on and/or electronic unit (20) is switched off. |
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Device for repair of the flange including some ledges uniformly located in circle comprises hollow bent reinforcement part shaped to flange and flange reconditioning part. Reinforcement part can be secured at the flange sound ledges and has two perpendicular mirror planes. Flange reconditioning part is arranged at reinforcement part with the help of fasteners located in one of mirror planes of said reinforcement part. The other invention of the set relates to aircraft engine module including crankcase flange repaired with help of aforesaid device. One more invention relates to aircraft engine including aforesaid module. In flange repair, sound damaged ledge is cut to select the free ledge at the flange adjoining the cut-off ledge for reinforcement and reconditioning parts to be located thereat. Then, reinforcement and reconditioning parts are assembled for them to be secured at the flange via bores of the flange safe ledges and reinforcement part bores. |
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Correction of reducer batched amount for selective catalytic reduction Invention relates to exhaust gas cleaning. Batching of reducer cleaving ammonia to exhaust gas flow in ICE operated with excess air is performed in combination with exhaust gas after-cleaning unit. Note here that control unit dispenses reducer amount subject to model stored in memory unit and varies dispensed amount at appropriate phases of ICE operation. Besides, it compares magnitude measured by at last one NOx-transducer arranged behind SCR-catalyst with expected magnitude calculated by control unit from variation magnitude. Compliance between expected and actual magnitude defined by NOx-transducer allows making the conclusion on the presence of NOx and/or NH3. Batched amount is varied unless NOx prescribed concentration or NOx prescribed conversion calculated therefrom, or unless NH3 presence is defined from departure of actual magnitude from expected magnitude, or unless actual magnitude, hence, the sum of NOx and NH3, reaches minimum or preset magnitude. At least one correction is calculated from batched amount before variation and batched amount at prescribed NOx concentration or calculated NOx prescribed conversion calculated therefrom, from NH3 presence, or at minimum or preset actual magnitude, and memorised in the control unit memory. Then, at further batching jobs, batched amount is corrected with the help of said correction. Besides, defined is at least one magnitude of operating parameters is defined and stored along with said correction in aforesaid memory. Then, batched amount is corrected in operation by said correction relative to said operating parameter. |
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Gas turbine stage with opening to tap dust concentrate from cooling system Stage of gas turbine with holes for dust concentrate discharge from cooling system comprises working and nozzle cooled blades that make the turbine wheel space, swirling apparatus with holes to fee cooling air to turbine components cooling system. Swirling apparatus has at least one extra dust concentrate discharge hole made at 0°<α<90° in working wheel rotation direction and at 0°<β<60° from engine axis. Dust concentrate discharge hole is located radially above cooling air feed holes in meridional plane at spacing larger than one cooling air feed hole diameter. |
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Mironov's pneumatic motor (versions) and vehicle equipped therewith Invention relates to machine building, particularly, to engines operated on compressed air and intended for replacement of motors driving various machines and mechanisms, as well as for replacement of ICE drives. Proposed engine comprises stator 8 with inner cylindrical surface, flanges arranged at its ends with at least one inlet communicated with compressor air source and at least one outlet, rotor 10 arranged eccentrically inside stator 8. Rotor 10 is composed of a cylinder with at least two axial bores 11 directed along its axis and extending over cylinder periphery. Every said axial bore 11 communicates with outer cylindrical surface of rotor 10 via lengthwise groove or at least one coupling hole intended for coupling with inlet and outlet of stator 8. Said axial bores 11 are blank on both sides. |
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Invention refers to power engineering. A turbine aggregate comprises a body with a shaft supported by bearings. At least one expander impeller is fixed on the shaft. The bearings are dry ones and are made of polymer composites. The expander impeller and the shaft have canals. The formed canals connect the flow part of the expander impeller with gaps formed by the shaft and bearings. |
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This plant has two working circuits: combined cycle composed by gas turbine plant and steam cycle including heat exchanger-condenser mounted at gas turbine pant inlet channel, heat exchanger-heater mounted at gas turbine plant outlet channel, steam turbine and high-pressure pump, all being loop-backed. Gas turbine plant working medium is the mix of air and steam formed by water evaporation in heat exchanger-condenser. Steam circuit working medium is steam formed by water evaporation in heat exchanger-heater and condensation in heat exchanger-condenser. Water evaporation and fluid condensation in heat exchanger-condenser occur simultaneously. |
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Turbine blade with perfected aerodynamic characteristic and turbine wheel with such blade Turbine wheel and rotor blade has pressure side surface (19) and rarefaction side surface (21). Rarefaction side is smooth at its larger portion except for some bulges (25). Bulges are distributed nearby and along rear edge (17). Pressure side surface is smooth. |
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Shop for preparation of aircraft engines for transportation Shop comprises meters and testers mounting bay (10), means (14) to transfer the engine to testing room (16) and to return it to said shop, testers and meters dismantling bay (18), endoscopy control bay (20), finishing bay (22) and transportation bay (24). Engines are transferred between bays with the help of cross-rails secured to engines and hooked by chain hoists displacing over the top frame arranged above the shop. Every bay is equipped with info terminals to display and to control the jobs done at engines at every appropriate station. |
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Steam turbine comprises a rotor with working blades, a cylinder with the end seal mounted on it and the collector of supplying the steam to the seal. The collector is connected through the pipeline to the turbine end seal. In the space between the rotor, the cylinder and the end seal the guiding unit is mounted, which input is connected by the pipeline to the collector of supplying the steam to the seals, and the output is connected to the exhaust pipe of the turbine. |
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Gas turbine engine cooled turbine Cooled blade comprises outer case with shroud liner and nozzle diaphragm with peripheral holes communicated with cooling air feed system, rotor with working blades with cooling channels and ledge over perimeter of end face surface to make an exposed end chamber. Shroud liner and end face surface of every blade has bypass opening. valves have inner webs with inlet openings while blade end chamber is proved with separation rib. Said web is arranged with clearance relative to end face surface to make a summing chamber. Separation rib is arranged inside end chamber in the blade rotation plane at 0.3-0.7 of the blade axial profile size to make open front and rear cavities. Outlet holes in the blade end surface are made in rear cavity. Summing chamber communicates via inner web inlet holes with blade cooling channels and, via outlet holes in end surface with rear cavity and gas-cir circuit via holes in blade trailing edge. Outlet holes in shroud liner are made above front cavity. Total area of outlet holes of summing chamber makes 3-6 of total area of inlet holes in inner web. |
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Turbomachine stator comprises flange joint of housings consisting of radial circular ribs and shells jointed thereto. Flange joint butt on flow section side accommodates extra split ring consisting of sectors. Said split ring is locked by circular radial rib in axial direction gas flow upstream and downstream radial ribs of the stator housings flange joint. Said split ring is locked radially by circular axial rib directed against gas flow and located in circular groove of front shell while, in circumferential direction, it is locked by axial ledges at conical wall relative to upstream nozzle blade. Ring conical wall end surface lock front nozzle blades in axial direction. Split ring rear circular ledge is arranged on inner side of downstream housing. Labyrinth seal elements are fitted on inner side of said ring, over working blade top shroud. |
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Low-pressure turbine incorporates sector split ring fitted on the housing inner side. Said ring has sealing cellular insert arranged on turbine working blade top shroud side. Said split ring is made of equal-depth sheet material. Ring gas flow downstream front and rear ends are plied-up while central part of the ring with cellular insert is a monolayer design. Ring front end the rib directed to turbine axis. Said rib is fitted in mid ring groove, said mid ring being fitted between housing radial flanges, front and rear downstream of gas flow. |
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Proposed machine comprises stator, rotor and working chamber formed there between. Working chamber is communicated with working medium feed and discharge channels. Working chamber cross-section width equals the difference between maximum and minimum radii of working chamber defined as the distance from machine axis to working chamber outermost point and the distance from the axis to innermost point. Working chamber houses blades and separator engaged with stator and rotor, respectively. Every blade comprises leading edge facing the rotor and arranged at β=5÷20° to meridian plane extending through leading edge centre. Blade cross-section mid line passed through leading edge centre is inclined to said meridian plane at α=5÷60°. Flat leading edge makes a sharp edge between edge plane and blade surface facing the rotor. Edge plane is parallel with the stator cross-section. |
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Device for automatic preparation of power plant of military track vehicle for start-up Device for automatic preparation of a power plant of a military track vehicle for start-up includes a heater including a boiler, an outlet manifold, a supercharger, an electric motor, a water pump, a fuel pump, an injector, a fuel valve, an ignition plug and a heating plug. A control unit with a remote control panel, which is connected to the ignition plug, the heating plug, the fuel valve, the electric motor and a temperature sensor, is installed into a warm-up system. A flame temperature sensor and an outlet manifold cover drive are installed into the heater boiler, and a heating limiter is installed into the heat exchanger. |
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Method and device for servicing of filter in scr-system fluid feeder SCR-system for exhaust gas cleaning feeds fluid to feeder and, therefrom, to dispenser at SCR-system consumption point. Proposed method comprises the stage of continuous determination of aggregate amounts of fluid fed through said dispenser. Necessity in replacement or cleaning of filter unit for said fluid is defined proceeding from said aggregate amounts of batched fluid. Besides, this method comprises the stage of batching of at least the fluid portion fed through the feeder and that of feeding of non-batched fluid back into return flow for it to be fed to said feeder. Invention relates to computer software product including program, code for implementation of proposed process in compliance with this invention. Invention covers also the device and carrier equipped with the latter. |
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Turbocompressor comprises a turbocompressor casing, a casing of bearings with oil supply channels, a rotor with bearings being set on its shaft, an oil drain cavity, an oil drain tube. A rotating knee piece with a bolt of the rotating knee piece is installed in the turbocompressor casing. The axial bore of the bolt is connected to the oil drain cavity. The output of the rotating knee piece is connected to the engine case via a drain tube. |
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Mechanism to drive two opposite-rotation propellers via planetary gearing Proposed mechanism comprise two opposite rotation propellers, drive turbine, shaft engaged therewith, fixed casing supporting the turbine by shaft and two bearings, transmission and hub. Transmission comprises planetary gearing with central planetary gear drive by turbine, pinion carrier equipped with plane pinions engaged with planetary gears and outer rim to be engaged with plane pinions. Pinion carrier drives of the propellers while outer rim drives the second propellers. The bush is engaged with turbine and planetary gear and is surrounded by said shaft. Note here that clearance is maintained between said bush and shaft. Bush features larger elasticity than the shaft so that it bends when unbalances forces are applied to planetary gear in radial direction. Spacing between one of the bearings and planetary gear is the spacing between two bearings. |
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Electric power generator exploiting offgas heat Invention relates to automotive industry. Electric power generator (1) exploits the heat of off-gas formed in ICE operation and comprises generator (3) with off-gas inlet pipe (4) and exhaust pipe (5). This device has heat exchange section (6) with heat exchanger (10) incorporating thermoelectric element (11) and cooler (12) locked with the latter. Heat exchange section (6) has multiple off-gas passages (9) directed across inlet pipe (4) and communicated with several heat exchangers (10). At least one part of the latter incorporates, at least, one thermoelectric element (11) and at least one cooler (12). Off-gas passages (9) and thermoelectric elements (11) are directed radially. Invention covers also the vehicle incorporating aforesaid electric power generator. |
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Mounting bracket for muffler support pipe Set of inventions relates to automotive industry. Mounting bracket for muffler support pipe is made of plate bent with formation of two support sides located in parallel planes and made with possibility to rest on opposite inner walls of side-member having U-shaped cross-section. The bracket contains attachment section to be mounted on muffler support pipe, and strut made capable to rest on bottom of side-member having U-shaped cross-section inside this side-member. The strut has V-shaped profile, where the central plane of branches is perpendicular to attachment section. Upper free edge of the first branch of V-shaped profile is rigidly connected with attachment section of Z-shaped profile. The other branch of V-shaped profile is made with possibility to rest on side-member bottom. Attachment assembly of exhaust system contains the said mounting bracket. The assembly contains L-shaped support pipe having free end made capable to be connected with muffler, and other end immovably connected with mounting bracket attachment section. Method for mounting the said exhaust system attachment assembly in side-member with U-shaped cross-section consists in containing steps in which free end of muffler support pipe is inserted into corresponding hole in side-member bottom. Exhaust system attachment assembly is given one quarter turn to position mounting bracket and pipe inside the side-member. Support sides come in contact with inner walls. The strut is accommodated at the bottom of side-member. Mounting bracket is fixed on side-member immovably connecting support sides with inner walls of the side-member. |
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Turbine of gas turbine engine and method for adjustment of radial clearance in turbine Turbine of a bypass gas turbine engine comprises a cooled stage with a nozzle diaphragm with cavities above and below it and a turbine rotor with a cooled runner. The turbine stator comprises at least two turbine casings with cavities in-between and a radial clearance adjustment system including a ring insertion above the turbine runner. The cavity above the nozzle diaphragm is connected to a compressor output by an air bleed pipeline including a flow regulator. The radial clearance adjustment system comprises an on-board computer, sensors for radial clearance measurement and microwave radiation sources set above the insertion. The radial clearance measuring sensors and the microwave radiation sources are connected by electric links with the on-board computer. The microwave radiation sources are made so that to be able of heating the ring insertion. The radial clearance is measured and basing on its value the microwave radiation sources are switched on. |
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Motor and/or transmission oil for, particularly, internal combustion engine Invention relates to automotive industry, particularly, to ICE motor and/or transmission oil cooler. The latter comprises oil radiator arranged in oil bath for coolant to flow there through. Said oil radiator is composed of plate-type heat exchanger (3) with chambers (5, 6) between plates for passage of coolant and oil. Note here that at least one part of oil passages (6) terminates in oil bath (2) to allow oil to flow from oil bath (2) directly via outlet zone (24) to oil passages (6) between aforesaid plates. |
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Device (1) for purifying unclean gas from internal combustion engine is proposed, it comprises a centrifugal separator (2) with a centrifugal rotor (3) which is able to rotate the unclean gas. The centrifugal rotor (3) includes a set of separating disks (6) of truncated cone shape which are installed with relevant interval so that to restrict spatial gaps (7) between themselves, through which gas flows. An outlet chamber (11) is placed in the centre of the separating disk set (6) due to this fact the centrifugal rotor (3) is able of counterflow separation. The centrifugal separator comprises a gas outlet branch (13) which is connected to the outlet chamber (11) and can bleed the purified gas from the centrifugal rotor. The separating disk set (6) is installed to rotate in the space (4) formed inside the internal combustion engine and set to be able to receive the unclean gas, for this purpose the spatial gaps (7) between the separating disks (6) are communicated directly with the space (4). The gas outlet branch (13) is mounted so that to direct the purified gas from the space through a wall (5) partitioning the space. |
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Turbo unit of gas-compressor unit (GCU) or gas turbine power plant (GTPP) comprises a gas turbine engine (GTE), a casing of the gas turbine engine, a compressor (blower) with labyrinth shaft seals, a transmission, a transmission casing with flanges, located between the casing of the gas turbine engine and the compressor. The transmission casing is provided with the inner wall forming the air duct together with its outer wall, which connects the casing cavity of the gas turbine engine with the area in front of the labyrinth compressor seals through the openings formed in the flange of the transmission casing, and the openings formed in the inner wall of the transmission casing, connected to it through the radial channel formed by the partitions fastened to the inner wall of the casing. |
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Foil from stainless steel and catalyst carrier for exhaust gas cleaner incorporating said foil Foil is made of stainless steel containing in wt %: 0.05 or less of C, 2.0 or less of Si, 1.0 or less of Mn, 0.003 or less of S, 0.05 or less of P, 25.0-35.0 of Cr, 0.05-0.30 of Ni, 3.0-10.0 of Al, 0.10 or less of N, 0.02 or less of Ti, 0.02 or less of Nb, 0.02 or less of Ta, 0.005-0.20 of Zr, 0.02 or less of Ce, 0.03-0.20 of rare-earth metal except for Ce, 0.5-6.0 one element of Mo and W, Fe, random impurities making the rest. |
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Monocrystalline ni-based superalloy and turbine blade Invention relates to monocrystalline Ni-based superalloy and can be used for production of turbine blades. Alloy has the following composition, wt %: 6.0 wt % or more and 9.9 wt % or lea Co, 6.5 wt % or more and 10.0 wt % or less Cr, 1.0 wt % or more and 4.0 wt % or less Mo, 8.1 wt % or more and 11.0 wt % or less W, 4.0 wt % or more and 9.0 wt % or less Ta, 5.2 wt % or more and 7.0 wt % or less Al, 0.1 wt % or more and 2.0 wt % or less Ti, 0.05 wt % or more and 0.3 wt % or less Hf, 0-1.0 wt % Nb and 0-0.8 wt % Re with the remaining part, including Ni and inevitable admixtures. |
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Oscillatory internal combustion engine Invention relates to propulsion engineering. Martine ICE comprises housing with circular working chamber, working shaft, PTO-shaft, at least two blades with seals, and starter. Webs with seals are rigidly secured to the housing inside working chamber. Blades are opposed to make cavities in said working chamber. Every said cavity comprises ignition chamber with fuel injection valve, exhaust gas discharge valve and spark plug. Engine incorporates mechanism to convert working shaft oscillation into pro-shaft rotation which includes to identical overrunning couplings and reversing coupling. Input links of overrunning couplings are engaged with working shaft extensions extending from the housing both sides. Output link of one overrunning coupling is engaged with one extension of PTO-shaft. Starter output link is engaged with working shaft end. PTO-shaft slides inside the hollow working shaft. Hub with blades is rigidly fitted on working shaft for blades to get in contact with web seals. Output link of the other overrunning coupling is engaged with input link of reversing coupling. Output link of reversing coupling is engaged with the other extension of PTO-shaft. Every ignition chamber is confined by the web curved part. |
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Method of regulation of heat load of heating turbine plant Steam supply to the regenerative heaters is reduced depending on change in feed water temperature, which is measured, compared to the minimum allowable value and when it reaches the minimum allowable temperature of the feed water the change in the amount of steam supply to the regenerative heaters is suspended and the heating turbine plant is operated at the minimum allowable temperature of feed water of the boiler unit. |
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Method and device for tangential shifting inner cooling at fixed blade of nozzle Turbine unit consists of the first device (200) of fixed blades, the second device (210) of fixed blades and a deflector (100) formed from a plate-type element. The deflector comprises the first section (101) of a hole with the first hole shape and the second section (102) of a hole with the second hole shape. The first hole section (101) comprises a configuration of inlet holes (104) forming the first hole shape. The second hole section (102) comprises an additional configuration of inlet holes (104) forming the second hole shape. The deflector (100) is spatially mounted on the first device (200) of fixed blades and on the second device (210) of fixed blades so that cooling fluid medium (106) can flow through the inlet holes (104) of the first hole section (101) to the first device (200) of fixed blades and the cooling fluid medium (106) can flow through the inlet holes (104) of the second hole section (102) to the second device (210) of fixed blades. The first shape of the hole differs from the second shape of the hole to reach the specified first flow of the cooling fluid medium (106) mass to the first device (200) of fixed blades and the specified second flow of the cooling fluid medium (106) mass to the second device (210) of fixed blades at the specified installation positions of the first device (200) of fixed blades and the second device (210) of fixed blades. |
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Wall cooling multireflection laminated complex and method of its production (versions) Invention relates to ICEs. Multireflection laminated complex is designed to contact with the surface of wall to be cooled for heat transfer purposes. It incorporates multiple perforated shield plies with multiple though holes and multiple plies of webs distributed over the surface of multiple perforated shield plies. These are arranged one above the other to alternate with perforated shield plies, each being provided with multiple webs. Said webs are distributed over the surface of perforated shield plies to strap them. Note here that every web of one ply is aligned with one of webs in other plies of webs. Every said through hole of perforated shield ply is shifted relative to through holes of adjacent perforated shield plies. When multireflection laminated complex is loaded with cooling fluid to make it flow through said through holes to flood mid spaces arranged between webs and perforated shield plies. This diverts heat flow carried from the wall to webs with the help of cooling fluid. |
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Cooled turbine comprises nozzle blades, a heat exchanger. Each nozzle blade is made as a structural element confined by top and bottom shrouds and space there between confined by convex and concave walls of the blade airfoil, in the form of leading edge distribution manifold and a distribution pocket with a transition baffle plate which are set along its axis. Along the inner surfaces of the airfoil walls the baffle plate forms cooling channels communicated with the turbine wheelspace. The inlet of the leading edge distribution manifold is connected to the air pocket of the combustion chamber while its outlet communicates with the wheelspace via perforation holes in the leading blade edge. The heat exchanger inlet is connected to the air pocket of the combustion chamber, and its outlet is successively connected to the air manifold, transition baffle plate of the distribution pocket, transition air duct, twisting nozzle diaphragm, cooling channels for the turbine runner and rotor blade. The cooled turbine is equipped by a cooling baffle plate with perforation holes on its two opposite walls. The cooling baffle plate is installed in the distribution pocket on the wall of the leading edge distribution manifold with a gap in respect to the transition baffle plate and with a gap between the concave and convex walls of the blade airfoil and the walls of the cooling baffle plate with perforation holes. The blade top and bottom shrouds are fitted by air ducts with their outlets being connected to the turbine wheelspace. The air duct inlet in the top shroud and the inlet of the cooling baffle plate are connected to the air manifold. The air duct inlet in the bottom shroud is connected with the outlet of the cooling baffle plate. |
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Turbine blade and turbine wheel with said blades Turbine wheel comprises turbine blades (20) shaped aerodynamic part (102). Said aerodynamic shape has rated profile corresponding to data cited in the tables 1 through 11 wherein distances X, Y, Z and R are given in inches and the tables 1' through 11' wherein said distances are given in centimetres. Magnitudes if coordinates X and Y are smoothly connected by arc with radius R to make profile cross-section of said shaped part at every distance Z. Profile cross-section at distances Z are smoothly interconnected to produce a complete aerodynamic shape. |
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Device and method for heating of heat carrier circulating in cooling system Proposed heater serves to heat heat-carrier in ICE cooling system (2) of vehicle (1). Cooling system comprises heat carrier cooler (18) arranged at vehicle point where through air flows at temperature (TA1, TA2) higher than ambient temperature, manifold with first line (16a) feeding heat carrier into engine (2) and second line (16b) feeding heat carrier into appropriate cooler (18). Besides it comprises valve (17) to be set to first position whereat it feeds heat carrier to ICE (2) and second position whereat it feeds heat carrier to appropriate cooler (18). Heater comprises control unit (22) to define if heat carrier in cooling system features temperature (TC) lower than working temperature (TD) if air in cooler (18) features temperatures (TA1, TA2) exceeding heat carrier temperature (TC). In case these conditions are satisfied, control unit (22) can drive valve (17) to second position so that heat carrier is fed to heat carrier cooler (18) whereat heat carrier is heated by air flowing through cooler (18). Invention covers also the heat carrier heating. |
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Bearing element unit for brush sealing and sealing unit for turbine installation Group of inventions relates to seals. A sealing unit (146) comprises the first flexible sealing component (136) which is installed in a stationary part's zone passing radially inside and is in friction contact with the surface (142) of a rotating part. The sealing unit (146) also comprises at least one stiff sealing element (162) made solid with the bearing element (154) of the first flexible sealing component placed at a specified axial distance from the first flexible sealing component. |
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Turbomachine rotor section has working blade locating grooves extending axially. Every said groove receive working blade including contact surface directed radially inward. To force coolant over rotor end face surface, plate-like sealing elements are forced by centrifugal force to fit in contact surface. To lock sealing elements against circular shift, at least one sealing element has a bore for locking element. Said locking element is locked in said bore and seat aligned therewith and made in blade root. Locking element is locked in said seat by Z-shape plate with first end abutting between sealing element and blade root end face. |
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Turbomachine diffuser-distributor assembly Diffuser-distributor assembly intended to be installed at a compressor output in a turbine comprises a distributor. The distributor includes two, in essence, cylindrical walls: a radial inner one and a radial outer one. The walls are connected by radial blades. The distributor walls are extended to the downstream part beyond the radial blades. Radial clearance between the walls is circumferentially variable downstream the blades so that in essence to be minimal in the blades extension and maximal between the blades. The clearance is circumferentially variable up to the downstream end of the downstream walls of the distributor. Subject of the invention is also a turbomachine such as turbojet engine, turboprop engine or helicopter engine comprising the assembly described above. |
Another patent 2513613.