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4734019 |
Pumping system
A pumping system employing a main pump and a high pressure centrifugal pump both of which are driven by an engine through a suitable drive is provided with an air clutch device whereby air is...
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4730832 |
Sealed telescopic joint and method of assembly
A radially-resilient seal can frequently pop out its annular groove defined in a carrier when the carrier and an overlapping housing are telescopically assembled. Such misorientation of the seal...
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4721433 |
Coolable stator structure for a gas turbine engine
A stator assembly 16 for a gas turbine is disclosed. Various construction details which increase the effectiveness of the use of cooling fluid are developed enabling the use of stator vanes which...
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4720236 |
Coolable stator assembly for a gas turbine engine
A stator assembly 18 for a gas turbine engine is disclosed. Various construction details relating to the mounting of a stator vane 42 in the engine are developed. In one embodiment, the vane is:...
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4709546 |
Cooled gas turbine operable with a controlled cooling air quantity
A cooled gas turbine power plant has a compressor and a high pressure turbine connected to the compressor. The cooling air quantity for the turbine is controlled in response to instantaneous load...
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4708588 |
Turbine cooling air supply system
Apparatus for supplying pressurized cooling air to the turbine blades (20) of a gas turbine engine is disclosed. Multiple nozzles (38 and 40) of a tangential on-board injection system for...
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4702670 |
Gas turbine engines
The cooling air from the nozzle guide vanes of a gas turbine engine is discharged from one or both platforms to discourage leakage flow between rotating and static components of the engine. In the...
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4695224 |
Centrifugal compressor with injection of a vaporizable liquid
An assembly for producing wet compression of gas being compressed in a centrifugal-type, multistage gas compressor having an impeller, a diffuser "downstream" of the impeller, and a cross-over...
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4693667 |
Turbine inlet nozzle with cooling means
A novel turbine inlet nozzle assembly is provided for use with a gas turbine engine and includes unique nozzle cooling means. The turbine inlet nozzle of the present invention comprises an inner...
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4688988 |
Coolable stator assembly for a gas turbine engine
A coolable stator assembly formed of wall segments 36 for bounding a working medium flow path 14 is disclosed. The wall segments extend circumferentially about the working medium flow path and are...
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4681508 |
Supercavitation centrifugal pump
A supercavitation centrifugal pump comprising an impeller casing defining an impeller chamber, a discharge port and a suction port operatively connected to the impeller casing, a water inlet means...
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4679981 |
Turbine ring for a gas turbine engine
A turbine ring has an annular metallic carrier which is mounted within the inside of the turbine casing and within the carrier there is provided a ceramic abradable ring. A cooling air circuit is...
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4676715 |
Turbine rings of gas turbine plant
A turbine ring assembly is mounted on an annular carrier secured to the irior of the casing of a turbine and includes a succession of contiguous sectors of a ceramic abradable material. The sectors...
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4668164 |
Coolable stator assembly for a gas turbine engine
A stator assembly 18 for a gas turbine engine is disclosed. The stator assembly includes an engine case 24 and a wall 26, such as a wall that includes an array of stator vanes 42. A high pressure...
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4668163 |
Automatic control device of a labyrinth seal clearance in a turbo-jet engine
An assembly to control automatically the clearance of a labyrinth seal of the turbo machine, including a stator member is provided which includes an annular chamber supplied with a hot air flow...
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4668162 |
Changeable cooling control system for a turbine shroud and rotor
Cooling air delivery systems for gas turbine engines are used to increase component life and increase efficiencies. To change the flow rate of cooling air in past engines, major disassembly of...
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4657482 |
Air cooling systems for gas turbine engines
A gas turbine engine in which a rotating component (such as a turbine shaft or disc) is cooled by directing preswirled air at it by flowing the air along a passageway defined by the rotating...
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4650394 |
Coolable seal assembly for a gas turbine engine
A coolable seal assembly, such as the outer air seal 26, for a gas turbine engine 10 is disclosed. The seal assembly is formed of a plurality of arcuate seal segments 24 which extend...
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4650395 |
Coolable seal segment for a rotary machine
A coolable seal assembly, having a ceramic facing material 76, such as an outer air seal 26, for a gas turbine engine is disclosed. The seal assembly is formed of an array of arcuate seal segments...
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4648791 |
Rotor, consisting essentially of a disc requiring cooling and of a drum
A rotor including a disc requiring cooling, a drum, a cover surrounding the drum so as to provide an annular space, a radial cooling air supply line, and a deflection cascade in the supply line,...
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4645415 |
Air cooler for providing buffer air to a bearing compartment
A cooling system 46 for a turbofan gas turbine 10 is disclosed. Various construction details which increase the effectiveness of a heat exchanger 48 located in the secondary flow path 24 are...
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4642024 |
Coolable stator assembly for a rotary machine
A coolable stator assembly 16 for a gas turbine engine 10 is disclosed. The stator assembly includes an outer air seal 26 and an upstream support 32 and a downstream support 34 supporting the outer...
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4616976 |
Cooled vane or blade for a gas turbine engine
A cooled vane or blade for a gas turbine engine has a cooling arrangement for its trailing region which can be accommodated in the relatively thin section available. In this arrangement the...
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4583911 |
Multiple fluid pathway energy converter
An axial flow energy converter combining a tubular shroud defining a fluid pathway coaxial with the shroud, a rotational energy converter having a rotatable shaft mounted within the fluid pathway...
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4581887 |
Pulsation valve
A valve mechanism for delivering time-spaced pulses of coolant air to coog passages within a turbine engine. The mechanism is designed for varying the pulse frequency to ascertain the affect that...
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4580943 |
Turbine wheel for hot gas turbine engine
A turbine wheel for a hot gas turbine engine operable at relatively high peratures, e.g. above 2,000° F., and high velocities, e.g. above 30,000 r.p.m. The blades are formed of...
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4576547 |
Active clearance control
The bore of the compressor for a gas turbine engine is heated by selectively bleeding compressor air from downstream stages so that heating only occurs at discreet times during the engine operating...
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4573866 |
Sealed shroud for rotating body
An annular turbine blade tip shroud is provided having a construction for minimizing leakage of the cooling fluid and preventing ingestion of hot gases into said cooling flow. A tip shroud support...
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4565492 |
Sealing device for turbine blades of a turbojet engine
A sealing device is disclosed for maintaining a small positive clearance between packing segments and the turbine blade tips of a turbojet engine. The packing segments are connected to an inner...
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4553901 |
Stator structure for a gas turbine engine
A stator structure 88 for supporting a pair of outer air seals 62, 72 and an array of stator vanes 82 from two axial locations A 1 , A 2 on a coolable outer case is disclosed. Various construction...
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4551064 |
Turbine shroud and turbine shroud assembly
To enable shroud segments in a gas turbine rotor blade stage to operate at high temperatures with an adequate margin of safety, the shroud segments are mounted and cooled such that they are thrust...
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4551285 |
Flotation machine and aeration impeller
A froth flotation machine (40) having a rotary air-supply shaft (42) vertically disposed in a vessel (41) includes an impeller (50) comprising a series of interconnected blades (52,53). Extending...
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4527385 |
Sealing device for turbine blades of a turbojet engine
A sealing device is disclosed for maintaining a small positive clearance between the sealing sectors and the turbine blade tips of a turbojet engine. The sealing segments are connected to an...
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4525998 |
Clearance control for gas turbine engine
Insulation material lines the inner wall of the case of a gas turbine engine and controlled hot and/or cold air is selectively impinged on the outer wall of the case so as to maintain a minimum gap...
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4522557 |
Cooling device for movable turbine blade collars
From an external turbine chamber (17), cooling air passages are formed through coils mounted in ball-and-socket fashion (26) in a cavity portion (21) above the stationary turbine nozzle vanes (16)...
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4522562 |
Turbine rotor cooling
The present invention concerns the cooling of turbine rotors, especially those of aircraft turboreactors, and discloses a turbine disc equipped with two sets of channels bored respectively close to...
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4512712 |
Turbine stator assembly
The stator vanes of an axial flow gas turbine are supported by spaced flanges in the surrounding turbine case one of which flanges supports the upstream end of the outer shroud of the vane radially...
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4502834 |
Apparatus and method of throttling centrifugal pump liquid output
A first control assembly is provided operative to supply gas from a supply of gas under pressure to the inlet of a centrifugal liquid pump at increasing and decreasing rates responsive to decreases...
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4497610 |
Shroud assembly for a gas turbine engine
A shroud assembly for a gas turbine engine consists of a housing having a boundary wall and a gas contacting skin, the wall and skin being in segmented form. The skin consists of a thin metal sheet...
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4493184 |
Pressurized nacelle compartment for active clearance controlled gas turbine engines
Methods and apparatus for improving the thrust specific fuel consumption (TSFC) of a gas turbine engine employing an exterior active clearance control system are disclosed. The pressure within the...
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4492514 |
Submerged pump assembly and method of making and using same
A method and means for providing a protective environment for submerged pumps are described. For a submerged water pump a shell or casing is installed to enclose at least a lower portion of the...
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4487016 |
Modulated clearance control for an axial flow rotary machine
A structure and method for providing cooling fluids from a compression section 10 to a turbine section 14 of an axially flow rotary machine is disclosed. Various construction details and steps of...
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4485620 |
Coolable stator assembly for a gas turbine engine
A coolable stator assembly 18 positioned outwardly of an array of rotor blades 32 in a gas turbine engine is disclosed. The stator assembly includes an outer case 48 and an outer air seal 76...
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4478553 |
Isothermal compression
A compression intensified thermodynamic gas process that includes a compressor rotor having a series of passage forming blades between which a process gas is conducted during compression. A coolant...
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4470753 |
Radial blower, especially for heaters or air conditioning systems in vehicles
A radial blower, especially for heaters and/or air conditioning systems of motor vehicles. The radial blower including a housing having a front portion provided with an air intake opening and a...
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4468168 |
Air-cooled annular friction and seal device for turbine or compressor impeller blade system
An annular friction seal device to be disposed around the impeller of a turbine or high pressure compressor is disclosed. The turbine or compressor is of the type comprising, from the periphery...
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4466239 |
Gas turbine engine with improved air cooling circuit
A cavity is defined between the rotating and stationary parts of a gas turbine engine through which cavity air is circulated. Upstream and downstream seals are disposed at opposite ends of the...
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4465429 |
Steam turbine with superheated blade disc cavities
Several means for providing superheated steam varying in pressure and temperature in a plurality of cavities serially disposed between blade discs of a steam turbine in which steam flows from a...
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4462754 |
Turbine blade for gas turbine engine
The blade has an aerofoil portion (16) having a first (23), a second (24), a third (25) and a fourth (26) internal spanwise passage for cooling air arranged in chordwise succession with the first...
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4460311 |
Apparatus for minimizing and maintaining constant the blade tip clearance of axial-flow turbines in gas turbine engines
Apparatus and method for minimizing and maintaining substantially constant the effective blade tip clearance between the outer free ends of rotor blades and an adjacent casing shroud of an...
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