FLAPPER VALVE FOR AIRCRAFT ENGINEA valve assembly (20) for an aircraft engine (10) includes a base (21) defining an air opening (19) configured to receive airflow therethrough in a flow direction from an upstream side (15) to a downs…DRIVE·Jun 17·2 min readFollowF02C6/08PRATT & WHITNEY CANADA [CA]
ENGINE EXHAUST REVERSE FLOW PREVENTIONA cover (40) system selectively allows a gas flow through a heat exchanger duct upstream of an exhaust duct (30) in an aircraft engine (10). A fluid is at a first pressure during an engine (10) operat…DRIVE·Apr 29·2 min readFollowF02C6/08PRATT & WHITNEY CANADA [CA]
A GAS TURBINE ENGINEThere is disclosed a gas turbine engine (10) for an aircraft, the gas turbine engine comprising: a compressor stage; a bleed air line (50) diverted from the compressor stage; and a thermoelectric gene…DRIVE·Mar 25·2 min readFollowF02C6/08ROLLS ROYCE PLC [GB]
METHOD AND SYSTEM FOR ADJUSTING A MODULATION CHARACTERISTIC OF A BLEED-OFF VALVE OF A GAS TURBINE ENGINEMethods and systems for adjusting a modulation characteristic of a bleed-off valve (34, 36) of a gas turbine engine (100) are described. The method comprises obtaining a first setpoint configuration (…DRIVE·Dec 31·1 min readFollowF02C6/08PRATT & WHITNEY CANADA [CA]
COMPRESSED AIR SUPPLY SYSTEMA compressed air supply system includes: a bleed air passage; an auxiliary compressor structure including a compressor inlet and a compressor outlet, the compressor inlet being fluidly connected to th…DRIVE·Nov 5·1 min readFollowF02C6/08KAWASAKI HEAVY IND LTD [JP]
INTERCOOLED COOLING AIR WITH SELECTIVE PRESSURE DUMPA gas turbine engine (101) includes a main compressor section (102) having a downstream most location (104), and a turbine section (108), with both the main compressor section (102) and the turbine se…DRIVE·Nov 5·2 min readFollowF02C6/08RTX CORP [US]
GAS TURBINE ENGINE AND ASSOCIATED METHOD OF CONTROLLING A VALVEA method for sensing (100) operating conditions of the gas turbine engine; generating (102) a base value signal of a control parameter of the bleed valve based on the sensed operating conditions and o…DRIVE·Sep 10·1 min readFollowF02C6/08PRATT & WHITNEY CANADA [CA]
AIR FILTRATION SYSTEM AND METHOD FOR COMPRESSOR BLEED VALVEMethods and systems (20) for filtering pressurized air (F) used to control a compressor bleed valve (22) of a gas turbine engine are provided. One method comprises receiving the pressurized air (F) in…DRIVE·Jul 30·2 min readFollowF02C6/08PRATT & WHITNEY CANADA [CA]
JET PUMP SYSTEMA bleed system including control circuitry and a variable jet pump. The control circuitry is configured to receive a signal indicative of a fluid parameter in the bleed system and cause the jet pump t…DRIVE·Jul 30·1 min readFollowF02C6/08HONEYWELL INT INC [US]
GAS TURBINE COMPRESSOR RADIAL DOOR BLEED VALVEA bleed system of a gas turbine engine (20) includes a bleed duct (66) having a duct inlet (70) located at a flowpath of a gas turbine engine (20), and a bleed outlet (72) located outside of the flowp…DRIVE·Jun 25·2 min readFollowF02C6/08RTX CORP [US]
ORIFICE PACK FOR COMPRESSOR BLEED VALVEAn orifice pack (24) is provided for delivering pressurized air to a compressor bleed valve (22) of a gas turbine engine (10). The orifice pack (24) has a diffusion chamber (34) in serial flow communi…DRIVE·Jun 11·1 min readFollowF02C6/08PRATT & WHITNEY CANADA [CA]
REMOTE PASSIVELY AND ACTIVELY ACTUATED VALVE SYSTEMSA system, comprising a first moveable member (208) disposed in a first chamber (106) configured to move between a first position and a second position to allow or prevent fluid from passing from an in…DRIVE·Apr 23·2 min readFollowF02C6/08HAMILTON SUNDSTRAND CORP [US]
GAS TURBINE ENGINE WITH AN OUTLET DUCT ASSEMBLYA gas turbine engine includes a first spool associated with a diffuser (68) and a primary combustor (70) and a second spool (12) associated with a secondary combustor (84). The first spool includes a …DRIVE·Apr 2·1 min readFollowF02C6/08RTX CORP [US]
ENGINE BLEED AIR DUCTING INTO HEAT EXCHANGER DUCTA gas turbine engine (20) includes a compressor section (106), a combustor (108), and a turbine section (110). A bleed tap (116) taps air from the compressor section (106) through a bleed valve (112).…DRIVE·Mar 26·1 min readFollowF02C6/08RTX CORP [US]
DIFFUSER AND ASSOCIATED COMPRESSOR SECTION OF AIRCRAFT ENGINEA compressor section (18) has a centrifugal impeller (40) operable to rotate around an axis (42), the centrifugal impeller (40) having blades (44), a compressor inlet (48) oriented towards the front a…DRIVE·Nov 27·2 min readFollowF02C6/08PRATT & WHITNEY CANADA [CA]
DEVICES AND METHODS FOR GUIDING BLEED AIR IN A TURBOFAN ENGINEDevice and methods for guiding bleed air in a turbofan gas turbine engine are disclosed. The devices provided include louvers (302, 128) and baffles (304, 128) that guide bleed air toward a bypass duc…DRIVE·Feb 7·1 min readFollowF02C6/08PRATT & WHITNEY CANADA [CA]
VALVE ASSEMBLYA valve assembly (100) includes a fluid flow passage (102), a valve seat (104), and an actuator assembly (120). The actuator assembly includes an actuator body (122) stationary relative to the valve s…DRIVE·Sep 6·2 min readFollowF02C6/08ROLLS ROYCE PLC [GB]
GAS TURBINE ASSEMBLY FOR POWER PLANT APPLICATION FED BY AT LEAST TWO DIFFERENT FUELS (FUEL-GAS OR FUEL-OIL) AND A METHOD FOR OPERATING THIS ASSEMBLY WHEN SWITCHING FUELS OR WHEN OPERATING THIS ASSEMBLY WITH FUEL-OILA gas turbine for power plant fed by a dual-fuel source; the gas turbine comprising: a compressor configured for compressing incoming air; a dual fuel source configured for selectively delivering gas …DRIVE·Jun 14·2 min readFollowF02C6/08ANSALDO ENERGIA SWITZERLAND AG [CH]
METHODS AND SYSTEMS FOR COMPRESSED AIR SYSTEMMethods and systems are provided for an air system. In one example, a system includes a boost device configured to be driven by exhaust air from a plurality of cylinder in order to compress ambient ai…DRIVE·Aug 25·1 min readFollowF02C6/08Ford Global Technologies, LLC
AIR RECOVERY SYSTEM FOR PRECOOLER HEAT-EXCHANGER AND CORRESPONDING METHODA method for recovering air in an aircraft includes bleeding bypass air (122;196) from an engine bypass (76;152), bleeding core air (120;194) from an engine core (74;150), and placing the bypass air a…DRIVE·Jul 17·1 min readFollowF02C6/08HAMILTON SUNDSTRAND CORP [US]
A method and apparatus for operating a gas turbine engineA gas turbine (10) includes a compressor (12), a combustor (14) downstream from the compressor (12) and a heat transfer system (30), wherein the heat transfer system (30) receives a compressed working…DRIVE·Jul 10·2 min readFollowF02C6/08GEN ELECTRIC [US]
Method for operating a stationary gas turbine with a low-calorific or medium-calorific fuel and stationary gas turbine for sameThe method involves supplying low calorific fuel and medium calorific fuel e.g. synthesis gas to a gas turbine (10). The gas turbine is provided with a secondary-air system with two cool air stages (4…DRIVE·May 29·1 min readFollowF02C6/08SIEMENS AG [DE]
Compartment cooling for a gas turbine engineA gas turbine engine includes a first pump (86) driven by a spool (30), an air-oil cooler (88) downstream of the first pump (86), a second pump (90) driven by the spool (30) and an air-air precooler (…DRIVE·Apr 24·1 min readFollowF02C6/08UNITED TECHNOLOGIES CORP [US]
STRUCTURE FOR EXTRACTING COMPRESSED AIR FROM COMPRESSOR OF GAS TURBINE ENGINE AND GAS TURBINE ENGINEProvided is a structure of a gas turbine engine for extracting a part of compressed air generated by a compressor. The structure comprises a cylindrical housing 13 extending around an axis C and formi…DRIVE·Mar 20·2 min readFollowF02C6/08KAWASAKI HEAVY IND LTD [JP]
Gas turbine inlet heating systemA gas turbine inlet heating system (2) is disclosed. In one embodiment, the system (2) includes: a compressor (4) including: an inlet bellmouth (6) adjacent to a set of inlet guide vanes (IGVs) (8); a…DRIVE·Jan 2·1 min readFollowF02C6/08GEN ELECTRIC [US]
A VORTEX REDUCERThe present disclosure relates to a vortex reducer (100) for a bleed flow (104) in an axial turbomachine comprising a rotor disc (113). The vortex reducer may comprise one or more guide channels (122)…DRIVE·Nov 28·1 min readFollowF02C6/08ROLLS ROYCE PLC [GB]
A bleed flow discharge device of a gas turbine engineA bleed assembly of a gas turbine engine comprises a bleed flow discharge device (136) adapted to discharge a bleed fluid flow into a main fluid flow, wherein the bleed flow discharge device comprises…DRIVE·Nov 28·1 min readFollowF02C6/08ROLLS ROYCE PLC [GB]
Gas turbine engine with bleed air removal deviceThe gas turbine engine has a compressor (13) and an air bleed device that is comprised of an annular channel (30) in a radially outer wall (31) of a flow channel (29). An annular sealing element (32) …DRIVE·Nov 14·1 min readFollowF02C6/08ROLLS ROYCE DEUTSCHLAND [DE]
NOISE REDUCTION DEVICEA noise reduction system includes: a microjet ring (16) provided at an exhaust side peripheral edge of a main nozzle of a jet engine, and has a plurality of injection pipes (26) formed in a circumfere…DRIVE·Sep 5·1 min readFollowF02C6/08IHI CORP [JP]
JET ENGINE COMPRISING A NOISE REDUCTION DEVICE WITH CHAMBERA noise reduction system with a chamber includes a chamber (17) which is provided at a portion of a supply path connecting a flow path in an upstream side of a combustor in a jet engine to a plurality…DRIVE·Sep 5·1 min readFollowF02C6/08IHI CORP [JP]
Distributed bleed air management system and methodA distributed bleed system temperature management scheme utilizes a distributed, closed loop temperature protection function. By allowing consumer systems to limit the consumer flow to meet a specifie…DRIVE·Aug 22·1 min readFollowF02C6/08HONEYWELL INT INC [US]
Plant for the production of electric power and method for operating said plantA plant (1) for the production of electric power is provided with: - a compressor (3) comprising an air intake (12), an inlet stage (13), which has a plurality of inlet adjustable stator vanes (18), a…DRIVE·Jun 20·1 min readFollowF02C6/08ANSALDO ENERGIA SPA [IT]
Bleed valveA bleed valve having an inlet port and an outlet port. The bleed valve comprises mutually perpendicular radial, longitudinal and tangential axes arranged such that the outlet port is substantially in …DRIVE·Mar 21·1 min readFollowF02C6/08ROLLS ROYCE PLC [GB]
Turbofan engine with variable bypass nozzle exit area and method of operationA turbofan engine includes core and fan nacelles that provide a bypass flow path having a nozzle exit area. The bypass flow path carries a bypass flow to be expelled from the nozzle exit area. A turbo…DRIVE·Mar 7·2 min readFollowF02C6/08UNITED TECHNOLOGIES CORP [US]
Fuel actuated bleed air systemA gas turbine engine bleed air system includes one or more fuel-actuated bleed air supply valves (114-2,114-3,142) and, in some cases, a pneumatically actuated overpressure valve (116). Each fuel-actu…DRIVE·Feb 29·1 min readFollowF02C6/08HONEYWELL INT INC [US]
Bearing compartment pressurization and shaft ventilation systemAn assembly and method for providing buffer air and/or ventilation air within a gas turbine engine (10), the assembly includes an accessory gearbox (32) and a centrifugal compressor (34). The accessor…DRIVE·Aug 31·1 min readFollowF02C6/08UNITED TECHNOLOGIES CORP [US]
Turbine engine bypass fan-bleed noise reductionApparatuses are provided for reducing noise generation from a dead ended conduit in a gas turbine engine. In particular A scooped bellmouth is provided that comprises a bellmouth within a surface havi…DRIVE·Jul 13·1 min readFollowF02C6/08HONEYWELL INT INC [US]
System and method for improving thermal efficiency of dry low emissions (lean premix) combustor assembliesA gas turbine engine system having improved thermal efficiency, which comprises: (1) an inlet air stream (66); and (2) a dry low emissions combustor assembly (22) having an air inlet (156) for receivi…DRIVE·Mar 8·2 min readFollowF02C6/08GEN ELECTRONIC CO [US]
Turbo machineAir (3) entering the blower or compressor passes a first row of stator blades (4) with air injection nozzles (11) at the blade roots on the stator housing (2). There is a first row of rotor blades (7)…DRIVE·Dec 28·1 min readFollowF02C6/08ROLLS ROYCE DEUTSCHLAND [DE]
Compressor air-bleed systemThe air bleed system has orifices (20, 21) through an outer skin (9) of the engine housing (1) that delimits cavities (11, 12) with its lining (10) through which bled air from the compressor is fed to…DRIVE·Mar 5·1 min readFollowF02C6/08SNECMA MOTEURS [FR]
