Matches 151 - 200 out of 685 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >
Match Document Document Title
6622473 Speed-reducing gear unit to absorb the axial loads generated by a turbojet fan  
A turbojet engine having a fan ( 12 ) driven by a speed-reducing gear unit ( 23 ) whose input is driven by a turbine shaft ( 22 ). The speed-reducing gear unit ( 23 ) includes a planet gear ( 24 )...
6584778 Methods and apparatus for supplying cooling air to turbine engines  
A cooling air cooling system is selectively operable to reduce fuel gum deposits within the cooling system during gas turbine engine operations. The cooling system includes a recirculating loop...
6546734 Process and device for attenuating the noise made in a turbomachine by rotor/stator interaction  
A process for attenuating noise generated in a turbomachine by the interaction of rotor blades with stator vanes downstream of the rotor blades comprises the injection of a fluid in continuous jets...
6532731 Turbofan engine having central bypass duct and peripheral core engine  
A turbofan engine has a fan bypass duct which is at the center of the engine surrounding the fan and compressor drive shafts and an annular drive engine which is located at the outer periphery of...
6523339 Variable mode jet engine—compact  
This jet engine comprises of a complete low bypass turbofan unit 1 including secondary fan unit 2 and engine core, some five to eight feet ahead of which sits a larger diameter main fan unit 3...
6508055 Variable mode jet engine—suitable for STOVL  
This jet engine comprises a complete low bypass turbofan unit 1 including secondary fan unit 2 and engine core, ahead of which sits a larger diameter main fan unit 3 driven from the front of...
6502383 Stub airfoil exhaust nozzle  
A gas turbine engine exhaust nozzle includes an outlet for discharging exhaust, and a plurality of circumferentially spaced apart stub airfoils disposed adjacent the outlet. The airfoils shed...
6494032 Ducted fan gas turbine engine with frangible connection  
A ducted fan gas turbine engine comprises a fan 12 mounted on a first shaft 16 and a compressor mounted on a second shaft 43. The shafts are coaxial both with each other and with said engine...
6477829 Combined cycle pulse combustion/gas turbine engine  
A combined cycle pulse combustion/gas turbine engine has a gas turbine engine used in conjunction with a plurality of pulse combustion engines. In one embodiment, the gas turbine engine includes a...
6442930 Combined cycle pulse detonation turbine engine  
A turbofan engine includes a pulse detonation system to create a temperature rise and a pressure rise within the engine to generate thrust from the engine. The system includes a pulse detonation...
6438941 Bifurcated splitter for variable bleed flow  
An air bleed assembly for extracting air from a flowpath in a gas turbine engine includes a casing for surrounding a row of circumferentially spaced apart rotor blades and defining at least in part...
6415597 Switchably coupled turbofan engines for high speed aircraft  
A jet engine for supersonic aircraft which enables supersonic flight and high fuel efficiency to be achieved while suppressing noise at take-off. The engine comprises a front engine consisting of a...
6415598 Exhaust nozzle for by-pass gas turbine engines  
A by-pass gas turbine engine including a primary and a secondary nozzle which are substantially convergent, wherein the primary nozzle is situated radially within, but axially protruding from, the...
H002032 Integrated fan-core twin spool counter-rotating turbofan gas turbine engine  
A twin spool counter-rotating turbofan gas turbine engine having a counter-rotating fan module integrated with the high pressure compressor and driven by a counter-rotating turbine utilizing only...
6401448 System for mounting aircraft engines  
A system for mounting an aircraft engine to an aircraft includes four forward mounting features, two mid mounting features, and four aft mounting features disposed on the engine. The forward, mid...
6393831 Exoskeletal engine  
A turbojet engine is made from a drum-like portion having a circular blade section extending inwardly therefrom, a support member, and a bearing arranged around a circle having a diameter...
6381948 Driving mechanism with counter-rotating rotors  
An engine with counter-rotating rotors, which are coaxially arranged and are driven via a shaft by a turbine whose working medium is supplied by a gas generator with an air inlet, the air inlet ( 3...
6378293 Gas turbine engine bearing arrangement  
A gas turbine engine ( 10 ) is provided with a plurality of shafts ( 18, 19, 20 ) interconnecting its compressor portions ( 11, 12, 13 ) with its turbine portions ( 15, 16, 17 ). Each shaft ( 18,...
6357220 Gearbox accessory mount  
A mount for a gearbox accessory for a gas turbine engine substantially isolates the accessory from direct mechanical loading from the engine case during normal engine operating conditions and...
6351940 Inverter ducting for dual fan concept  
Accordingly, the present invention provides a ducting system for use on a gas turbine engine having two fans connected to a common shaft, and includes a primary inlet duct that is integral with a...
6308740 Method and system of pulsed or unsteady ejector  
The present invention reveals a method and apparatus for more efficiently injecting a primary fluid flow in a fluid ejector used to pump lower velocity fluid from a secondary source. In one...
6301877 Ejector extension cooling for exhaust nozzle  
The cooling of the exhaust nozzle of a fan jet engine powering aircraft is enhanced by providing an extension cooling concept that includes an extension piece extending axially downstream of the...
6282881 Cooling system for a turbomachine speed reducer  
A system for cooling the lubricant of the speed reducer of an aircraft turboshaft-engine during high-speed flight and during low-speed taxying. The cooling system includes a radiator through which...
6260351 Controlled spring rate gearbox mount  
A gearbox mounting arrangement for a gas turbine engine includes a controlled spring rate mount that has an appropriate stiffness level to minimize the transmission of loads from the engine case to...
6223524 Shrouds for gas turbine engines and methods for making the same  
A rotatable assembly for use with a gas turbine engine comprises a rotatable disk, and a plurality of blades for affecting a flow of air passing thereover during use. The blades are attached to the...
6205771 Ducted fan gas turbine engine control system  
A control system for a ducted fan gas turbine engine (10) comprises a control unit (29) that receives input signals from a pressure transducer (27) located within the engine's fan duct (11)...
6195983 Leaned and swept fan outlet guide vanes  
A gas turbine engine fan assembly has a plurality of axially swept fan exit guide vanes circumferentially disposed around an axially extending centerline, a plurality of fan frame struts having...
6178740 Turbo fan engine nacelle exhaust system with concave primary nozzle plug  
A turbo fan engine nacelle houses an engine which forces engine exhaust through a primary nozzle and a fan nozzle positioned along a common central axis. The primary nozzle is bordered interiorly...
6173566 Casing construction on a gas turbine jet engine  
A casing construction is provided on a gas turbine having a fan downstream of which a precompressor is situated, the precompressor casing being detachably connected with the casing of the...
6170252 Locator for a gearbox mount  
A locator for a gearbox mount for a gas turbine engine includes a mounting plate having a first stub shaft that extends from the plate into a receptacle in the gearbox, a second stub shaft that...
6158210 Gear driven booster  
A turbine engine includes a gear driven booster connected to a high pressure shaft of the engine. A gear assembly connects the booster to the high pressure shaft. The booster is a high speed...
6151882 Turbofan engine construction  
A turbofan engine construction has a stator portion coupled to and centra disposed within a rigid casing. A rotor portion is disposed between the rigid casing and the stator portion for rotation...
6145300 Integrated fan / low pressure compressor rotor for gas turbine engine  
An integrated fan and low pressure compressor rotor having a hub with a circumferential array of primary blades. Each primary blade has a forward fan blade portion housed in the engine inlet...
6134880 Turbine engine with intercooler in bypass air passage  
A turbine engine (20) having bypass and core passages (30 and 40), a high pressure compressor (80) for compressing air in the core passage and an intercooler (120, 220) for cooling core air (42) in...
6127758 Ram air turbine system  
A ram air turbine includes a reaction turbine and an electrical generator that is driven by shaft power of the reaction turbine. A scoop directs a flow of ram air to an inlet of the reaction...
6125626 Active rotor stage vibration control  
An apparatus for controlling vibrations in a rotor stage rotating through core gas flow is provided. The apparatus includes a source of high-pressure gas and a plurality of ports for dispensing...
6112514 Fan noise reduction from turbofan engines using adaptive Herschel-Quincke tubes  
An array of adaptive or fixed Herschel-Quincke tubes aligned in a circumferential or helical array about an inlet of a turbofan engine. The array of tubes effectively divide the acoustic energy...
6109022 Turbofan with frangible rotor support  
A ducted fan gas turbine engine (10) is provided with a fan (12) which is carried by a shaft (16). A frangible support member (27) maintains a coaxial relationship between the shaft (16) and the...
6102329 Flow diverter system for multiple streams for gas turbine engine  
A flow diverting mechanism for the twin duct offtakes or coannular offtake for a turbo fan engine powering aircraft with either thrust reversing or short takeoff and vertical landing or both...
6098399 Ducted fan gas turbine engine  
A ducted fan gas turbine has a fan shaft which is supported at its upstream end by a bearing. In the event of damage to the engine's fan, frangible bolts fracture to permit radial movement of the...
6094907 Jet engine and method for reducing jet engine noise by reducing nacelle boundary layer thickness  
A jet engine has a noise reduction system which reduces the boundary layer located on the outer surface of the nacelle. The noise reduction system includes a plurality of openings located in the...
6079200 Ducted fan gas turbine engine with fan shaft frangible connection  
A ducted fan gas turbine engine is provided with a fan which is carried by a shaft. Frangible fuse pins maintain the shaft carrying the fan coaxial with the engine longitudinal axis. In the event...
6079667 Auxiliary inlet for a jet engine  
An auxiliary inlet (60) for a jet engine has a first rod block (62) attached to a first side (64) of a hole (66) in a skin (68) of an inlet of the jet engine. A second rod block (80) is attached to...
6073439 Ducted fan gas turbine engine  
A ducted fan gas turbine engine is provided with a fan which is carried by a shaft. Frangible fuse pins maintain the shaft carrying the fan coaxial with the engine longitudinal axis. In the event...
6070407 Ducted fan gas turbine engine with variable area fan duct nozzle  
The fan duct of a ducted fan gas turbine engine is provided with a secondary duct at least partly within the downstream end of the primary duct. The secondary duct is provided with means such as...
6068213 Aircraft engine ducted fan cowling with thrust reverser section and fairings for fan shroud brace members in fan exhaust duct  
A ducted fan aircraft turbojet engine having an inner engine core cowling, an outer fan shroud, an outer fan outlet cowling including a thrust reverser, a fan exhaust duct between the inner engine...
6058696 Inlet and outlet module for a heat exchanger for a flowpath for working medium gases  
An inlet-outlet module 108 having both an inlet 58 and an outlet 62 for a heat exchanger system 52 is disclosed. Various construction details which improve the stiffness to weight ratio and the...
6041589 Asymmetric turboprop booster  
A booster-compressor assembly for supercharging air into a core engine that powers propellers of a turboprop aircraft engine includes an asymmetric annular booster duct aft of the propellers and...
6009701 Ducted fan gas turbine engine having a frangible connection  
A ducted fan gas turbine engine is provided with a fan which is carried by a shaft. A frangible fuse ring maintains the shaft carrying the fan coaxial with the engine longitudinal axis. In the...
5998882 Apparatus for converting aircraft exhaust into useful energy  
An apparatus for capturing the exhaust stream of jet aircraft while it is being readied for takeoff and for converting the energy of this exhaust stream to useful purposes is provided. The...
Matches 151 - 200 out of 685 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >