Propulsion system for an aircraft
a propulsion system and aircraft technology, applied in the direction of process control, instruments, machine control, etc., can solve the problems of limiting the ability of flight crews to control aircraft and perform certain functions, and one or both aircraft engines may experience uncommanded thrust loss,
Inactive Publication Date: 2019-01-03
GENERAL ELECTRIC CO
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Benefits of technology
The present invention has various features, aspects, and advantages that can be understood through the accompanying drawings and description. These drawings show examples of how the invention works and help explain its principles. Overall, the invention improves upon existing technologies and offers new ways to address certain challenges.
Problems solved by technology
During flight operations of the aircraft, it is possible that one or both of the aircraft engines may experience an un-commanded loss of thrust.
The un-commanded loss of thrust may limit a flight crew's ability to control the aircraft and perform certain functions.
Method used
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[0032]Reference will now be made in detail to present embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the invention.
[0033]As used herein, the terms “first”, “second”, and “third” may be used interchangeably to distinguish one component from another and are not intended to signify location or importance of the individual components.
[0034]The terms “forward” and “aft” refer to relative positions within a gas turbine engine or vehicle, and refer to the normal operational attitude of the gas turbine engine or vehicle. For example, with regard to a gas turbine engine, forward refers to a position closer to an engine inlet and aft refers to a position closer to an engine nozzle or exhaust.
[0035]The terms “upstream” and “...
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A hybrid-electric propulsion system includes a propulsor, a turbomachine, and an electrical system having an electric machine coupled to the turbomachine. A method for operating the propulsion system includes operating, by one or more computing devices, the turbomachine to rotate the propulsor and generate thrust for the aircraft; receiving, by the one or more computing devices, data indicative of an un-commanded loss of the thrust generated from the turbomachine rotating the propulsor; and providing, by the one or more computing devices, electrical power to the electric machine to add power to the turbomachine, the propulsor, or both in response to receiving the data indicative of the un-commanded loss of thrust.
Description
FIELD[0001]The present subject matter relates generally to a hybrid-electric propulsion system, and a method for operating the hybrid electric propulsion system during an un-commanded loss of thrust.BACKGROUND[0002]A conventional commercial aircraft generally includes a fuselage, a pair of wings, and a propulsion system that provides thrust. The propulsion system typically includes at least two aircraft engines, such as turbofan jet engines. Each turbofan jet engine is typically mounted to a respective one of the wings of the aircraft, such as in a suspended position beneath the wing, separated from the wing and fuselage.[0003]During flight operations of the aircraft, it is possible that one or both of the aircraft engines may experience an un-commanded loss of thrust. The un-commanded loss of thrust may be a total loss of thrust, or a reduction in thrust, in response to, e.g., an ingestion event (such as a bird strike, or ice ingestion) or a combustor blowout. The un-commanded loss...
Claims
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IPC IPC(8): B64D31/10G05D1/00B60L11/14B64D35/02
CPCB64D31/10G05D1/0072B64D2027/026B64D35/02B60L2200/10B60L11/14B64D27/02B64D27/24B64D27/026F01D15/10F01D21/00F02K5/00B60L50/16Y02T50/60B64D35/023G05D1/854
Inventor GANSLER, MICHAEL THOMASHON, ROBERT CHARLES
Owner GENERAL ELECTRIC CO