Rtx Corporation

Raytheon Technologies Corporation

United Technologies Corporation

Doosan Fuel Cell America, Inc.

Other

Audi Ag

Raython Technologies Group

Doosan Fuel Cell Amreica, Inc.

Paul R Hanrahan

Gabriel L Suciu

Daniel Bernard Kupratis

Arthur M Salve, Jr

Benjamin T Mylrea

John L Preston

Joshua David Isom

David Allen Stachowiak

Jon E Sobanski

Todd A Davis

Christopher J Hanlon

Jonathan Ortiz

Leslie L VanDine

Derek W Hildreth

Robert G Murphy, Ii

Frederick M Schwarz

Joseph Brent Staubach

Stephen Karl Kramer

Gregory E Reinhardt

Jeffrey T Morton

Paul R Margiott

Sitaram Ramaswamy

Peter F Foley

John H Mosley

Mary Colby

Christopher M Juh

Taryn Narrow

Zachary Mott

Mark Tu

George E Allen

Mithun Kamat

Jill Klinowski

Kyle D Crawford

Lynn Hamilton

Lynn Reni

Jui-lin Chang

Jui-Lin Chang

Jr Arthur M Salve

Daniel Bermard Kupratis

Jonathan Oritz

A swirl recovery vane (SRV) open rotor engine include an engine core, a rotor having a plurality of rotor blades mounted to an end of the engine core and a plurality of stators mounted adjacent to the rotor. The stators are spaced in a non-uniform spacing to reduce a forcing function created by movement of the rotor blades past the stators.

Non-uniform and bi-tri stator spacing for swirl recovery vane (SRV) open rotor engines

An assembly is provided for an aircraft. This assembly includes a first rotating structure, a second rotating structure and a seal assembly. The seal assembly is configured to seal an annular gap radially between the first rotating structure and the second rotating structure. The seal assembly includes an arm, a seal element and a seal land. The arm is cantilevered from and extends axially along the second rotating structure. The seal element is connected to the arm and forms a seal interface with the seal land. The seal land is connected to the first rotating structure.

Aircraft propulsion system geartrain

A system is provided for an aircraft. This aircraft system includes an aircraft and an air system. The airframe includes a body and a vane connected to the body. The vane projects spanwise away from the body to a vane tip. The vane extends longitudinally between a leading edge and a trailing edge. The vane extends laterally between a first vane side and a second vane side. The air system includes a circuit inlet, a circuit outlet and an air circuit. The circuit inlet is arranged with the body and laterally offset from the vane. The circuit outlet is arranged with the vane. The air circuit extends within the airframe from the circuit inlet to the circuit outlet.

Aircraft vertical stabilizer with air system

An assembly is provided for an aircraft. This assembly includes a vertical stabilizer, a first turbine engine, a second turbine engine and an actuation system. The vertical stabilizer extends spanwise from a stabilizer base to a stabilizer tip. The vertical stabilizer extends longitudinally from a stabilizer leading edge to a stabilizer trailing edge. The vertical stabilizer extends laterally between a stabilizer first side and a stabilizer second side. The first turbine engine is movably mounted to the vertical stabilizer at the stabilizer first side. The second turbine engine is moveably mounted to the vertical stabilizer at the stabilizer second side. The actuation system is configured to move the first turbine engine and the second turbine engine relative to the vertical stabilizer.

Aircraft vertical stabilizer with moveable propulsion system(s)

A system for an aircraft includes a vane and an air system. The air system includes a first air circuit and a first door assembly. The first air circuit extends in the vane to a first circuit outlet at a first side of the vane. The first door assembly is arranged at the first circuit outlet. The air system is configured to exhaust a flow of air out of the first air circuit through the first circuit outlet during a first mode and a second mode. The first door assembly is configured to direct the flow of air exhausted from the first circuit outlet longitudinally towards a leading edge of the vane during the first mode. The first door assembly is configured to direct the flow of air exhausted from the first circuit outlet longitudinally towards a trailing edge of the vane during the second mode.

Aircraft airframe component with air system

A gas turbine engine includes a first spool associated with a primary combustor, a second spool associated with a secondary combustor, and a third spool, each spool including a compressor and a turbine mounted to a shaft. A transmission and accessory gearing are enclosed within a housing of an accessory gearbox. The transmission rotationally couples the third spool to the second spool and accessory gearing. A method of operating the gas turbine engine includes supplying a first fuel flow rate to the primary combustor and supplying a second fuel flow rate to the secondary combustor within an intermediate speed range of the gas turbine engine.

Transmission and method for control of boost spool

A powerplant is provided that includes a first gas turbine engine, a second gas turbine engine, a second engine bypass flowpath and a flow control system. The first gas turbine engine includes a first core flowpath fluidly coupled with a first inlet and a first exhaust. The first core flowpath extends sequentially through a first compressor section, a first combustor section and a first turbine section. The second gas turbine engine a second core flowpath fluidly coupled with a second inlet and a second exhaust. The second core flowpath extends sequentially through a second compressor section, a second combustor section and a second turbine section. The flow control system fluidly couples the first inlet and the first exhaust to the second core flowpath during a first mode. The flow control system fluidly couples the first inlet and the first exhaust to the second engine bypass flowpath during a second mode.

Powerplant with multiple integrated gas turbine engines

An aircraft system is provided that includes a first gas turbine engine, a propulsor rotor, a second gas turbine engine, an electric generator and an electric component. The first gas turbine engine includes a first compressor section, a first combustor section, a first turbine section and a first flowpath. The propulsor rotor is rotatably driven by the first gas turbine engine. The second gas turbine engine includes a second compressor section, a second combustor section, a second turbine section and a second flowpath between a second inlet and a second exhaust. The second inlet and the second exhaust are each fluidly coupled with the first flowpath upstream of a combustor of the first combustor section. The electric generator is rotatably driven by the second gas turbine engine. The electric component receives electricity generated by the electric generator. The electric component is discrete from the first gas turbine engine.

Aircraft powerplant with boosted gas turbine engine

A bearing scavenge pump incorporated into a disk cover plate including a rotor disk having a rear surface and an axis; the disk cover plate attached to the rotor disk, the disk cover plate including fins extending into a gap formed between a rear surface of the rotor disk and the disk cover plate, the disk cover plate including anti-vortex features located axially distal from the fins relative to the axis; an inverted bearing located in a bearing compartment proximate the disk cover plate and disk; and a liquid fuel lubricant contacting the inverted bearing.

Bearing scavenge pump incorporated into turbine disk cover plate

A section for a gas turbine engine according to an example of the present disclosure includes, among other things, a rotor including a row of blades extending in a radial direction outwardly from a hub. The row of blades deliver flow to a bypass flow path, an intermediate flow path, and a core flow path. A first case surrounds the row of blades to establish the bypass flow path. A first flow splitter divides flow between the bypass flow path and a second duct. An aftmost row of guide vanes extends in the radial direction across the bypass flow path. A second flow splitter radially inboard of the first flow splitter divides flow from the second duct between the intermediate flow path and the core flow path. A bypass port interconnects the intermediate and bypass flow paths.

Splitter and guide vane arrangement for gas turbine engines

An assembly is provided for an aircraft. This assembly includes a geartrain, a first propulsor rotor and a rotating structure. The geartrain includes a sun gear, a ring gear, a plurality of intermediate gears and a carrier. The ring gear circumscribes the sun gear and is rotatable about an axis. Each of the intermediate gears is between and meshed with the sun gear and the ring gear. Each of the intermediate gears is rotatably mounted to the carrier. The carrier is rotatable about the axis. The first propulsor rotor is coupled to the carrier. The rotating structure is coupled to the ring gear. The rotating structure includes a turbine rotor. The rotating structure is configured to drive rotation of the first propulsor rotor through the geartrain.

An engine assembly is provided that includes a sun gear, a ring gear, a plurality of intermediate gears, a carrier, a first rotating structure, a second rotating structure and a first bearing. The ring gear is rotatable about an axis and circumscribes the sun gear. The intermediate gears are arranged circumferentially about the axis in an array. Each of the intermediate gears is radially between and meshed with the sun gear and the ring gear. The carrier is rotatable about the axis. Each of the intermediate gears is rotatably mounted to the carrier. The first rotating structure is configured as or otherwise includes the carrier. The second rotating structure is configured as or otherwise includes the ring gear. The first bearing is radially between and engaged with the first rotating structure and the second rotating structure.

Bearing arrangement for turbine engine geartrain

An apparatus is provided for a turbine engine. This turbine engine apparatus includes an air-debris separation structure, and the air-debris separation structure includes a first air-debris separator, a second air-debris separator and a separation structure outlet. The first air-debris separator includes a first separator inlet and a first separator outlet out from the air-debris separation structure. The first air-debris separator fluidly couples the first separator inlet to the first separator outlet and the separation structure outlet in parallel. The second air-debris separator includes a second separator inlet and a second separator outlet out from the air-debris separation structure. The second air-debris separator fluidly couples the second separator inlet to the second separator outlet and the separation structure outlet in parallel.

Separating airflows within a turbine engine

An aircraft assembly includes a geartrain with a first gear system and a second gear system. The first gear system includes a first sun gear, a first ring gear, a plurality of first intermediate gears and a first carrier. The first sun gear and the first ring gear are each rotatable about an axis. The first intermediate gears are between and meshed with the first sun gear and the first ring gear. Each of the first intermediate gears is rotatably mounted to the first carrier. The second gear system is interconnected with the first gear system. The second gear system includes a second sun gear, a second ring gear, a plurality of second intermediate gears and a second carrier. The second intermediate gears are between and meshed with the second sun gear and the second ring gear. Each of the second intermediate gears is rotatably mounted to the second carrier.

An assembly is provided for an aircraft propulsion system. This assembly includes an engine core, a bypass duct and a bleed circuit. The engine core includes a compressor section, a combustor section, a turbine section and a core flowpath extending sequentially through the compressor section, the combustor section and the turbine section. The bypass duct includes a bypass flowpath outside of the engine core. The bleed circuit includes a bleed passage and a flow regulator. The bleed circuit is configured to direct bypass gas through the bleed passage from the bypass flowpath into the core flowpath when the flow regulator is in an open position. The bleed circuit is configured to cutoff gas flow through the bleed passage between the bypass flowpath and the core flowpath when the flow regulator is in a closed position.

Aircraft propulsion system with multi-direction bleed valve

Growing community of inventors

Farmington, CT, United States of America

Paul R Hanrahan