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| Number | Title | Issue Date |
| 5123248 | Low emissions combustor A combustor effective for reducing exhaust emissions is disclosed. The combustor includes first and second liners defining a primary combustion zone, and a plurality of circumferentially spaced carburetors. Each of the carburetors includes a fuel injector... | 06/23/1992 |
| 5102295 | Thrust force-compensating apparatus with improved hydraulic pressure-responsive balance mechanism An axial thrust force-compensating apparatus is provided in a gas turbine engine having relatively rotatable first and second structures. The axial thrust force-compensating apparatus includes a first annular part mounted to the first engine structure and... | 04/07/1992 |
| 5100291 | Impingement manifold Clearance control is provided by circumferentially segmented cooling manifolds having spray bars located radially outside selected components of the stator casing. Cooling air is directed onto stator components and returns immediately through circuitous p... | 03/31/1992 |
| 5098133 | Tube coupling with swivelable piston A coupling for joining first and second channels in fluid communication includes a tubular housing having a first section including a wear surface, and a second section for being removably joined in fluid communication with the second channel. A first fit... | 03/24/1992 |
| 5083422 | Method of breach cooling The present invention comprises a method and apparatus for improving cooling of a wall in a gas turbine engine. The method and apparatus provide breach cooling of an imperforate wall, such as a combustor liner, for improving the cooling thereof. The breac... | 01/28/1992 |
| 5076062 | Gas-cooled flameholder assembly The uprating of existing jet engines increases the operating temperatures within the engines and also increases the tendency for flashback in some afterburner type engines. Afterburner type engines include a pilot fuel delivery pipe which is included betw... | 12/31/1991 |
| 5070690 | Means and method for reducing differential pressure loading in an augmented gas turbine engine Means and method are disclosed for reducing buckling loads across an afterburner combustion liner in an augmented gas turbine engine. Means for accelerating bypass cooling airflow and then decelerating the accelerated bypass airflow for creating pressure ... | 12/10/1991 |
| 5031313 | Method of forming F.O.D.-resistant blade An improved gas turbine engine blade having increased resistance to foreign object damage is disclosed. The blade includes a swept-back leading edge portion in the tip region of the blade for improving resistance to tip curl due to foreign object impact. ... | 07/16/1991 |
| 5020318 | Aircraft engine frame construction A gas turbine engine of the type having generally cylindrical casings defining concentric bypass and turbine discharge passages including a support structure in the turbine discharge passage. The support structure is cooled with low pressure compressor di... | 06/04/1991 |
| 4973221 | Gas turbine engine motor assembly A gas turbine engine rotor assembly has an inertial damper loosely surrounding a portion of the main rotor shaft. The damper is axially compressed between facing abutment surfaces provided on a nut and bevel gear. The damper has two axially spaced rows of... | 11/27/1990 |
| 4964315 | Transmission having dual counterrotating output shafts The present invention includes a stationary housing having disposed therein an epicyclic star gearset including sun, idler, and ring gears. The sun gear includes an input shaft extending therefrom, and the ring gear includes a first output shaft extending... | 10/23/1990 |
| 4961686 | F.O.D.-resistant blade An improved gas turbine engine blade having increased resistance to foreign object damage is disclosed. The blade includes a swept-back leading edge portion in the tip region of the blade for improving resistance to tip curl due to foreign object impact.... | 10/09/1990 |
| 4936749 | Blade-to-blade vibration damper A blade-to-blade vibration damper for a turbine rotor blade is disclosed. Each blade has airfoil, platform and root portions. A plurality of blades are circumferentially spaced about a rotor disk. An inclined recess extends into the platform portion of ea... | 06/26/1990 |
| 4928480 | Separator having multiple particle extraction passageways A gas turbine engine utilizes a main and at least one auxiliary particle separator for enhancing the separation of foreign particles from a stream of air entering the engine. The engine includes interior walls which collectively define an engine intake pa... | 05/29/1990 |
| 4923371 | Wall having cooling passage The invention comprises a wall having first and second spaced surfaces, and a first plane disposed therebetween which includes first and second coplanar and orthogonal axes. A passage extends between the first and second surfaces and includes a portion ha... | 05/08/1990 |
| 4918925 | Laminar flow fuel distribution system Laminar flow tubes of uniform inner diameter and length are individually incorporated in each of plural fuel lines leading from a distributor to the various fuel injectors in a gas turbine combustor to provide generally uniform fuel distribution over a wi... | 04/24/1990 |
| 4916906 | Breach-cooled structure The present invention comprises a method and apparatus for improving cooling of a wall in a gas turbine engine. The method and apparatus provide breach cooling of an imperforate wall, such as a combustor liner, for improving the cooling thereof. The breac... | 04/17/1990 |
| 4887425 | Fuel spraybar The present invention comprises a gas turbine engine augmentor including a new and improved fuel spraybar therein. The spraybar includes a base having a manifold for receiving fuel, and a plurality of fuel tubes extending from the base and in flow communi... | 12/19/1989 |
| 4872767 | Bearing support The invention comprises a compact support for a bearing associated with a rotating member such as a shaft of a gas turbine engine. The bearing support has one or more circumferential leaf spring elements which provide radially resilient support for the sh... | 10/10/1989 |
| 4864819 | Exhaust system including protective arrangements An exhaust system having a protective arrangement includes a plurality of spaced overlapping inclined armor plate blockers providing a ballistic shield over the entire exhaust area. A louvered grate is provided extending between the tops of the blockers t... | 09/12/1989 |
| 4854127 | Bimodal swirler injector for a gas turbine combustor An improved air swirler and fuel injector for a gas turbine combustor system employs primary fuel injection into a primary recirculation combustion zone supplied by an inner annulus of swirling air at high fuel-air ratio under low power conditions. A sele... | 08/08/1989 |
| 4851090 | Method and apparatus for electrochemically machining airfoil blades In accordance with a preferred, exemplary embodiment of the invention, a method of forming a blisk from a workpiece is disclosed. The workpiece includes a blank having oppositely facing first and second faces defined by a radially inner housing, a radiall... | 07/25/1989 |
| 4833881 | Gas turbine engine augmentor A new and improved gas turbine engine augmentor including a liner having a film-coolable first portion joined to a convection-coolable second portion is disclosed. A cooling gas, such as fan bypass air, is channeled to the liner for film cooling the first... | 05/30/1989 |
| 4809498 | Gas turbine engine An improved gas turbine engine is disclosed. The engine includes counterrotating first and second turbine rotors without an intervening nozzle. Disclosed also are means for obtaining pitch relative outlet velocity greater than pitch absolute inlet velocit... | 03/07/1989 |
| 4796721 | System for displacing a power pack from a vehicle A system used in a vehicle having a ground-engaging attitude to effect the displacement from a compartment in the vehicle of a power pack adapted for driving the vehicle. The system elevates the power pack from a vehicle driving position within the compar... | 01/10/1989 |
| 4793770 | Gas turbine engine frame assembly A fairing for mounting onto a gas turbine frame to isolate the frame from the hot gases passing the flowpath. The fairing includes mating forward and aft annular sections with each section having an outer wall and an inner wall defining the flowpath there... | 12/27/1988 |
| 4791783 | Convertible aircraft engine A convertible aircraft engine, capable of turboshaft and/or turbofan modes of operation, is provided in a configuration that combines certain components to permit variation in bypass flow to match engine airflows with the mode of engine operation. The pro... | 12/20/1988 |
| 4772372 | Electrodes for electrochemically machining airfoil blades In accordance with a preferred, exemplary embodiment of the invention, an apparatus for forming a blisk from a workpiece is disclosed. The workpiece includes a blank having oppositely facing first and second faces defined by a radially inner base, a radia... | 09/20/1988 |
| 4767276 | Retainer ring A retainer ring clamps, for example, a turbine cooling plate to a rotatable turbine disc. The retainer ring has a wedge-shaped channel that engages annular flanges on the cooling plate and the disc. The wedge-shaped channel converts radial forces on the r... | 08/30/1988 |
| 4767267 | Seal assembly A seal assembly for reducing fluid leakage around a circumferential periphery of an annular nozzle stage in a gas turbine engine includes an abradable annular steel member having an annular attachment ring attached to an outer surface, the ring including ... | 08/30/1988 |
| 4761116 | Turbine blade with tip vent In a turbomachine having stationary and rotating bladed stages, the blades of the rotating bladed stage are cooled by ducting cooling fluid into an interior cavity formed in each blade. Each rotating blade has a tip portion which is closely adjacent an an... | 08/02/1988 |
| 4733538 | Combustion selective temperature dilution Means are provided for controlling and modulating the temperature of the hot gas exiting the combustor associated with a gas turbine engine. The means establish a preselected temperature gradient in the hot gas so as to provide a flow of hot gas at a rela... | 03/29/1988 |
| 4695220 | Actuator for variable vanes Disclosed is an actuator for rotating a plurality of circumferentially spaced variable vanes each having a spindle extending through a casing about which the vane is rotatable. The actuator includes an arcuate unison member and a plurality of levers each ... | 09/22/1987 |
| 4685942 | Axial flow inlet particle separator The invention is an improved inlet particle separator for removing extraneous matter from a stream of air directed into the engine's core section. The improved separator utilizes two stages of separation. The first stage is an axial flow separator for ini... | 08/11/1987 |
| 4682935 | Bowed turbine blade The invention comprises a blade for a gas turbine engine including an airfoil portion having a non-linear stacking axis which is effective for generating a compressive component of bending stress due to centrifugal force acting on the blade. The compressi... | 07/28/1987 |
| 4653976 | Method of compressing a fluid flow in a multi stage centrifugal impeller A multistage centrifugal impeller in which each blade row is individually matched to optimum efficiency characteristics in a manner which minimizes blade lean. Each blade row is composed of twisted blades which substantially equalize working fluid diffusi... | 03/31/1987 |
| 4653278 | Gas turbine engine carburetor A gas turbine engine carburetor including an annular swirler and a new and improved fuel injector cooperating therewith is disclosed which is effective for providing low BTU gaseous fuel to a combustor. The swirler includes a plurality of circumferentiall... | 03/31/1987 |
| 4652208 | Actuating lever for variable stator vanes According to the present invention, there is provided an actuating lever for effecting concurrent vane rotation in tandem rows of variable stator vanes in a gas turbine engine. The actuating lever is interconnected between and operates to activate one van... | 03/24/1987 |
| 4638636 | Fuel nozzle A fuel nozzle including a hollow body having an inlet, an outlet and a stationary surface are disclosed. Means for modulating fuel flow from the inlet to the outlet are also disclosed and comprise a flexible pressure-responsive diaphragm fixedly mounted i... | 01/27/1987 |
| 4633116 | Sub-slot cover for dynamoelectric machine In a dynamoelectric machine including a rotor of electrically conductive material having a plurality of axially extending slots for receiving electrical conductors, there is provided apparatus in each slot for electrically insulating the conductors from t... | 12/30/1986 |
