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4077206 |
Gas turbine mixer apparatus for suppressing engine core noise and engine fan noise
A low noise mixer apparatus for mixing the turbine exhaust effluent of a turbofan gas turbine engine with a portion of the air flowing from the engine fan stage prior to discharge from the engine...
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4075833 |
Variable area inlet for a gas turbine engine
The inlet of a gas turbine is provided with a mechanism for varying the throat area which may be selectively adjusted to maintain the velocity of an incoming air stream at a high level during...
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4072008 |
Variable area bypass injector system
An augmented mixed flow gas turbine engine is provided with a variable area bypass injector system which varies the area through which the bypass stream is injected into the core stream and which...
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4069661 |
Variable mixer propulsion cycle
A design technique, method and apparatus for controlling the bypass gas stream pressure and varying the bypass ratio of a mixed flow gas turbine engine in order to achieve improved performance. The...
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4068471 |
Variable cycle engine with split fan section
The fan section of a gas turbine engine is divided into a front section and an aft section axially displaced downstream of the front fan section. A duct is provided for bypassing the inlet gas...
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4064692 |
Variable cycle gas turbine engines
A design technique, method, and apparatus for varying the bypass ratio and modulating the flow of a gas turbine engine of the bypass type in order to achieve improved mixed mission performance. The...
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4055949 |
Multiflow gas turbine power plant
A dual-flow or multiflow gas turbine power plant comprising a jet pipe, at east two separate flow-ducts each opening into the jet pipe, namely a first flow-duct through which passes, in operation,...
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4054030 |
Variable cycle gas turbine engine
A variable cycle air breathing gas turbine engine includes a core engine having a combustor, a high pressure turbine stage and a low pressure stage and wherein the high pressure stage drives a...
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4052847 |
Gas turbine engine gas flow ducts
A ducted fan gas turbine engine power plant has an augmenter air intake and a flow mixer for selectively mixing the augmenter air with the remaining engine flows.
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4051671 |
Jet engine with compressor driven by a ram air turbine
A jet engine having outer and inner tubular casings with an annular fluid passage therebetween, a combination motor fan and compressor mechanism having fluid driven vanes and compressing vanes...
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4045957 |
Combined guide vane and mixer for a gas turbine engine
The multi-lobed mixer downstream of the turbine of a gas turbine engine is constructed to include the exit guide vanes for the turbine carried on the inner diameter of the mixer so as to prevent...
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4043121 |
Two-spool variable cycle engine
An auxiliary fan is disposed upon the periphery of at least a portion of the fan of a conventional gas turbofan engine. Flow modulating components such as variable vanes and nozzles are utilized in...
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4043509 |
Actuation system for a gas turbine engine exhaust device
A gas turbine engine actuation system for simultaneously controlling the flow areas defined by two generally coannular ducts, each duct terminating in a nozzle of the variable flap variety. A bell...
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4030291 |
Thrust reverser for a gas turbofan engine
In a mixed flow gas turbine engine of the type which includes an outer nacelle spaced apart from a core engine to define an annular bypass duct therebetween, a thrust reverse is incorporated into...
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4010608 |
Split fan work gas turbine engine
One or more of the aft stages of the fan section of a gas turbine engine are rotated by the high pressure turbine of a gas generator and the remainder of the fan stages are rotated by a low...
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4007892 |
Aircraft flight method and apparatus for boosting an aircraft to a very high altitude and thereafter boosting the aircraft to a high rate of forward speed
This invention relates to a method and apparatus whereby functioning airborne conventional aircraft and engine combinations may be assisted during flight in attaining above normal airspeeds and/or...
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4003201 |
Variable area flameholder duct
An annular ram burner has a movable wall adjacent the flameholder to provide a large variation in area change at the flameholder plane. The movable wall comprises a number of flaps mounted around...
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3987621 |
Method for reducing jet exhaust takeoff noise from a turbofan engine
In a turbofan engine for jet aircraft the inner stream includes no noise suppression apparatus and the jet exhaust noise generated at takeoff is reduced by mechanically suppressing the jet exhaust...
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3974646 |
Turbofan engine with augmented combustion chamber using vorbix principle
A mixed flow turbofan engine in which a portion of the core engine exhaust gases are passed into a pilot zone chamber where fuel is added thereto for vaporization therewith and wherein the fan air...
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3971208 |
Gas turbine fuel control
A fuel control system for a gas turbine engine providing single lever thrust control and closed loop fuel flow surge valve positioning system.
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3955782 |
Turbine engines
A gas turbine turbojet engine for a supersonic aircraft which fits into a nacelle having a substantially square cross-section. Air flow passing between the square section of the nacelle and the...
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3938328 |
Multicycle engine
Air breathing gas turbine engine design concepts, and methods and apparatus for providing variable engine cycles are disclosed. The preferred engine embodiments involve two flow control valve...
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3927522 |
Aircraft gas turbine noise suppression
In an aircraft gas turbine installation having a jet pipe which extends downstream of the turbine by a distance at least equal to the jet pipe nozzle diameter, a plurality of moveable members are...
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3916621 |
Pulse-jet engine with variable volume combustion chamber
The specification discloses a propulsion unit made up of an outer burner wall that is generally polyhedronical and/or generally conical at its forward component and generally cylindrical at its...
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3910375 |
Jet engine silencer
In and for a jet propulsion engine having a thrust nozzle adapted to exhaust a propulsive gas jet, said nozzle including wall means longitudinally bounding a hollow central body substantially...
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3900177 |
Jet propulsion powerplant
A powerplant for a supersonic aircraft which consists of a gas turbine turbojet engine, as is usual for such aircraft, housed within a square nacelle, the shape of which is determined by the need...
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3871174 |
Jet engines
A jet engine comprising a primary flow of hot gas and a secondary air flow hich are separated, up to the entrance to an afterburner duct provided with annular flame-holders by a wall which is...
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3861140 |
TURBOFAN ENGINE MIXER
A turbofan mixer is fabricated from a structural panel of the variety including substantially planar first and second walls and a filler material sandwiched therebetween. The mixer includes at...
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3854286 |
VARIABLE BYPASS ENGINES
Air breathing gas turbine engine design concepts, methods and apparatus for providing variable bypass and variable engine cycles. The disclosed preferred embodiments involve flow control systems...
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3844118 |
AFT INLET RAMJET POWERED MISSILE
A solid fuel ramjet powered missile having the air inlets positioned adjacent the aft end of the fuel grain with a channel provided adjacent the fuel grain to provide primary air into the forward...
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3841091 |
MULTI-MISSION TANDEM PROPULSION SYSTEM
A multi-mission tandem propulsion system is provided for an aircraft which must operate efficiently at both supersonic and subsonic speeds while generating low noise levels during takeoff,...
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3830431 |
ABATING EXHAUST NOISES IN JET ENGINES
A noise abating improvement for jet engines including the provision of apparatus in the primary flow stream of gas turbine engines such as turbojet, turbofan, turboprop, and other jet engines such...
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3800530 |
AIR COOLED AUGMENTER IGNITER ASSEMBLY
An augmenter igniter assembly for a mixed flow augmenter gas turbine engine is shown to include an airfoil-shaped, hollow housing which surrounds an electrical discharge-type igniter and provides a...
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3780530 |
COMBUSTION CHAMBER
A combustion chamber or duct heater which provides an enclosed volume where partial combustion occurs and a transverse momentum is imparted to the burning gases to obtain mixing and burning with a...
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3779486 |
GAS TURBINE ENGINES
A gas turbine engine for use in aircraft in which a substantial part of the gases discharged from the engine are exhausted through swivel type nozzles capable of varying the direction of the...
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3765179 |
PROPULSION POWER PLANT FOR AIRCRAFT
A propulsion power plant for use in a supersonic aircraft includes an aft-fan engine housed in a first duct which delivers air both to the aft-fan and to a further duct for delivery to the...
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3750400 |
SELF-STARTING AIR FLOW INDUCING REACTION MOTOR
An engine including a self-starting engine compressor unit comprising a burner duct defining a converging-diverging inlet at its forward end, a converging exhaust nozzle at its rear end, and a...
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3750402 |
MIXED FLOW AUGMENTATION SYSTEM
1. In an axial flow reaction engine a mixed flow augmentation system comprising: A first plurality of motive fluid flow passages; A second plurality of motive fluid flow passages, the passages of...
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3747345 |
SHORTENED AFTERBURNER CONSTRUCTION FOR TURBINE ENGINE
An afterburner construction for a turbine engine, such as a turbofan engine, which is foreshortened by using a construction which utilizes swirl flow phenomena to rapidly mix the engine products of...
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3736751 |
GAP CONTROL APPARATUS
In order to maintain a substantially constant clearance between static and rotating sealing elements of a gas turbine engine, one of the elements is connected to a thermally expansible control tube...
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3715079 |
BLOW-IN-DOOR ACTUATION FOR AFTER BURNER NOZZLE
The blow-in-doors for an exhaust nozzle are held in open position by an air piston located between adjacent doors that permits the doors to close when a predetermined pressure differential is built...
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3705491 |
JET ENGINE AIR COMPRESSOR
A gas turbine jet engine is modified to act as an air compressor by removing the propulsion nozzle to increase the expansion ratio across the driving turbine and by injecting steam generated in the...
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3696617 |
TURBO-FAN PROPULSION APPARATUS AND OPERATING METHOD
Fan air of turbo-fan engine flows through ducts which pass through wall of lobed thrust nozzle mounted on aft end of the engine so as to receive exhaust gas discharged therefrom, the ducts...
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3693354 |
AIRCRAFT ENGINE FAN DUCT BURNER SYSTEM
A bypass gas turbine engine is provided with an augmentation burner in the bypass airpassage for additional thrust, wherein combustion in the augmentation burner is supported and enhanced by the...
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3677012 |
COMPOSITE CYCLE TURBOMACHINERY
1. A composite fluid flow turbomachine comprising: A first compressor; A second compressor, said second compressor being arranged to continuously receive a part only of the flow from said first...
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3673802 |
FAN ENGINE WITH COUNTER ROTATING GEARED CORE BOOSTER
The disclosure describes a turbofan engine having high and low pressure compressors wherein the low pressure compressor, or booster, comprises two counter rotating elements, a rotating duct which...
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3660982 |
NON-RETURN DEVICE FOR FLUID DUCTS AND THRUST REVERSERS
An ejector of the deflected flow type, including a primary duct and a secondary duct, the pressure in the primary duct being higher than that in the secondary duct, the secondary and primary flows...
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3651645 |
GAS TURBINE FOR AIRCRAFTS
A gas turbine for aircrafts, particularly jet engines with air-cooled turbine blades whereby the cooling air is taken off either directly or indirectly from a compressor stage; a heat-exchanger...
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3648460 |
GAS TURBINE ENGINE FUEL CONTROL SYSTEM
The invention concerns a gas turbine engine fuel control system comprising a first burner supply conduit and at least one second burner supply conduit, a fuel pump which communicates with both said...
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3646760 |
VAPOR CYCLE PROPULSION SYSTEM
System comprises duct with entire power plant within a duct. Axial flow compressor driven by vapor turbine produces entire thrust in form of airflow. Combustor combines minor portion of airflow...
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