Matches 201 - 250 out of 428 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
4315401 Afterburner flameholder construction  
An afterburner on a turbofan engine includes a flameholder means having an annular flameholder gutter positioned downstream of a first exhaust means of a core engine while said flameholder means...
4312185 Low profile fuel injection system  
A low profile fuel injection system for a thrust augmenter to a gas turbine engine, for example, a turbofan engine, comprising fuel manifolds secured with the outer surface of the augmenter casing...
4305248 Hot spike mixer  
A mixer at the exit opening of a high performance jet engine to prevent premature migration of the core flow into the duct stream thereby operating to eliminate hot streaks in the augmentor and...
4302934 Lobed mixer/inverter  
A fairing added to the upstream end of the lobe of conventional lobed mixers or inverters for a gas turbine engine redirects the boundary layer so as to improve engine performance.
4294068 Supersonic jet engine and method of operating the same  
A supersonic jet engine capable not only of developing sufficient power to accelerate up to supersonic cruise and maintain efficient operation at supersonic cruise, but also arrange to cruise at...
4292803 Turbo fan engine mixer  
A turbo fan engine has a fan gas duct surrounding the exhaust or primary gas stream. The primary gas stream leaves the engine through a plurality of nozzles terminating within the fan gas stream....
4290262 Two-dimensional plug nozzle  
The ducting extending a substantial axial length of a gas turbine engine is faired to transition the annular flows of the core engine and fan to a rectangular separate flow in a pair of...
4288984 Noise suppressing turbofan nozzles and method  
Noise perceived below a turbofan is reduced by providing a thicker fan flow below the turbofan primary exhaust flow than is present in conventional turbofans having generally circular and...
4288983 Turbofan engine having core supercharging stage  
A turbofan configuration for a gas turbine engine is disclosed. Various construction details which improve engine performance by supercharging working medium gases to the engine core are discussed....
4285194 Apparatus and method for controlling fan duct flow in a gas turbine engine  
A fan duct flow control method and apparatus is provided for controlling fan bypass airflow at an inlet into an exhaust duct cooling annulus of a variable cycle gas turbine engine. The flow control...
4280587 Noise-suppressing jet engine nozzles and method  
A discharge nozzle of a jet engine has lobes, tubes or deflectors for promoting mixing of the engine discharge flow with ambient air to reduce jet noise. By providing the lobes, tubes or deflectors...
4271666 Integral infrared radiation suppressor for a turbofan engine  
Apparatus is disclosed for minimizing the infrared radiation emitted at the aft end of a bypass fan type turbine engine. Minimization is accomplished by ducting cool air from the secondary bypass...
4258822 Muffler plug for gas turbine power plant  
The slant of tubes utilized for sound suppression in the exhaust plug in the tail pipe of a jet engine is tailored to avoid or minimize flow velocities into and out of the plug.
4244441 Broad band acoustic attenuator  
A broad band acoustic attenuator particularly useful for attenuating gas turbine engine noise utilizes a plurality of axially extending, open-ended, perforated cylinders concentrically arranged...
4240252 Acoustically-treated mixer for a mixed flow gas turbine 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, there is provided a convoluted lobed...
4227370 By-pass gas turbine engines  
In a by-pass gas turbine engine, the by-pass exhaust flow is mixed with the core engine exhaust flow internally of the engine before passage through the final exhaust (propulsion) nozzle. The...
4226084 Ducted fan engine exhaust mixer  
A turbofan engine has an exhaust arrangement for the bypassed air and turbine exhaust gases providing for mixing of the two before a common propulsion nozzle. The turbine exhaust gas is directed to...
4226297 Acoustic treated exhaust plug for turbine engine  
An acoustical muffler for a turbofan engine is disclosed. The muffler is utilized on the tail cone plug and comprises a plurality of circumferentially spaced slots oriented in parallel relationship...
4226085 Unitary plug mixer and support therefor  
A single point attachment for a unitary tail pipe plug and convoluted lobe mixer supports the assembly in the tail pipe of a turbofan engine.
4222235 Variable cycle engine  
A variable cycle turboshaft engine includes a remote fan system and respective high and low pressure systems for selectively driving the fan system in such a manner as to provide VTOL takeoff...
4222233 Auxiliary lift propulsion system with oversized front fan  
A propulsion system for use primarily in V/STOL aircraft is provided with a variable cycle, double bypass gas turbofan engine and a remote augmenter to produce auxiliary lift. The fan is oversized...
4222242 Fluid flow transfer  
A method and apparatus for transferring energy from a first fluid flow to a second fluid flow via vortex generating means. Various embodiments and various support means for elements of the...
4221114 Gas turbine jet propulsion engine  
A gas turbine engine has three turbines, the intermediate and high pressure turbines running at substantially constant corrected speed. The low pressure turbine has variable nozzle guide vanes and...
4217756 Vortex mixers for reducing the noise emitted by jet engines  
Apparatus for internally mixing fan exhaust with primary exhaust forward of the nozzle exit plane of a turbofan engine having an outer engine cowling, a splitter wall structure and a tail plug...
4215536 Gas turbine mixer apparatus  
Fluid mixing apparatus for mixing the coaxially flowing streams of fan air and primary exhaust within a turbofan engine are disclosed. Each of the disclosed arrangements include a generally tubular...
4214441 Infrared suppressor device  
An air-cooled contoured plug fitted within the engine tailpipe to physica block any direct view to the turbine section. A vortex cavity is provided around the plug just aft of the plug maximum...
4197702 Rotor support structure for a gas turbine engine  
A rotor support structure for a gas turbine engine comprises a rolling element bearing adapted to carry the rotor, a structurally strong ring adapted to carry the rolling element bearing, and two...
4193262 Gas turbine engines  
A gas turbine engine power plant comprises a main gas turbine engine terminating in a jet pipe in which a free turbine is mounted. The free turbine is adapted to drive an auxiliary compressor....
4185462 Fluid fitting for turbofan engines  
A connecting device for use in a gas turbine engine is provided wherein first and second fluid carrying members disposed in a plenum are maintained engaged in a substantially fluid-tight joint....
4185461 Turbojet engine with combustor bypass  
A propulsion system having an afterburning turbojet with the fuel supplied at the inlet to the turbojet compressor. The turbojet combustor has a bypass with a flow control connected at the inlets...
4183210 Gas turbine engine powerplants  
A ducted fan gas turbine powerplant consists of a core gas generator, which may be a single or two-shaft gas generator, and which drives a fan at the downstream end of the powerplant. The exhaust...
4175384 Individual bypass injector valves for a double bypass variable cycle turbofan engine  
A double bypass, variable cycle gas turbofan engine is provided with a variable area bypass injector which varies the area through which the inner bypass stream is injected into the outer bypass...
4174610 Power cruise diverter valve  
An air control valve for use in the exhaust emission control system of an internal combustion engine as used for example, in a vehicle, the air control valve, which is adapted to perform three...
4170111 Thrust augmentor  
A thrust augmentor for a turbofan, gas turbine engine is disclosed. Techniques for mixing and burning dissimilar density gases in a thrust augmentor are developed. In accordance with one specific...
4170109 Thrust augmentor having swirled flows for combustion stabilization  
A thrust augmentor for a turbofan, gas turbine engine is disclosed. Techniques for mixing and burning dissimilar density gases in a thrust augmentor are developed. In accordance with one specific...
4149375 Lobe mixer for gas turbine engine  
The lobe-type mixer on a turbine type power plant is improved upon by "scalloping" the side walls for enhancing mixing of two flow streams to obtain improved noise suppression and/or engine...
4147029 Long duct mixed flow gas turbine engine  
A gas turbine engine is provided with a long nacelle which forms both the inlet and exhaust of the engine. The nacelle is spaced apart from a core engine to define an annular bypass duct...
4145880 Vorbix augmenter configuration with diffuser and vorbix swirler  
An augmenter construction for fan engines in which the fan air and the engine gas are distributed through transition ducts terminating in vortex generators and the fuel rich pilot gas discharges...
4145879 Modified vorbix burner concept  
An augmenter construction for fan engines in which the fan air and engine gas are distributed through transition ducts terminating in vortex generators and the fuel rich pilot gas discharges into...
4145878 Vorbix augmenter configuration  
An arrangement for mixing fan air and engine gas in an engine augmenter which includes transition ducts for diverting some of the fan air into the engine gas annulus, the ducts having vortex...
4135363 Device to provide flow inversion in a turbofan exhaust tailpipe to achieve low jet noise  
Jet noise generation occasioned from the gaseous streams in the coaxial streams of a turbofan engine when they as well as the ambient stream encounter is reduced by designing the engine so that the...
4134260 Afterburner flow mixing means in turbofan jet engine  
A short length afterburner assembly for a jet propulsion engine having a fan bypass includes cold and hot air cross-over passages and a plurality of flame stabilization swirler vanes associated...
4128995 Method and apparatus for stabilizing an augmenter system  
A turbine is stabilized in high speed, high altitude flight conditions by reducing the maximum augmenter fuel/air ratio in response to certain pressure and temperature conditions. Temperatures and...
4118929 Impaction augmented jet engine  
An impaction augmented jet engine with a primary burner unit and a primary impaction/induction unit which separates a portion of the exhaust gases from the burner unit for recirculation thereto and...
4117671 Noise suppressing exhaust mixer assembly for ducted-fan, turbojet engine  
To suppress jet noise emanating from a ducted-fan turbojet engine, an improved exhaust mixer assembly is disclosed that is mounted between the engine and the exhaust nozzle and that mixes the flow...
4110975 Jet engine having combustion chamber within compressor  
A jet engine, comprising a long, tube-shaped casing open at both ends, a shaft supported centrally in the casing, a compressor and gas turbine rigidly connected to the shaft, and a combustion...
4086761 Stator bypass system for turbofan engine  
A nacelle for use with a turbofan engine for reducing both rotor and stator source noise emitting from the engine. The nacelle contains a ducted system which when in operation bypasses a portion of...
4085585 Impaction/induction jet engine  
An impaction/induction jet engine including generally a burner unit which discharges the exhaust gases therefrom through an air induction unit which causes fresh air to be induced into the exhaust...
4085583 Method for selectively switching motive fluid supply to an aft turbine of a 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...
4080785 Modulating bypass variable cycle turbofan engine  
A turbofan engine is provided with a core engine, a first fan and a second fan. First and second fan ducts are provided for bypassing a portion of the air flow leaving the fans around the core...
Matches 201 - 250 out of 428 < 1 2 3 4 5 6 7 8 9 >