[특허]Asymmetry-proof multi-engine aircraft

Embraer S.A.

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Asymmetry-proof multi-engine aircraft

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64D-031/10 B64D-041/00 B64D-045/00 B64D-027/12 B64D-027/24 B64D-027/02
출원번호	US-0061425 (2016-03-04)
등록번호	US-10227138 (2019-03-12)
발명자 / 주소	De Magalhães Gomes, Ierko
출원인 / 주소	Embraer S.A.
대리인 / 주소	Nixon & Vanderhye P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 3

초록
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An aircraft compensates for asymmetry of engine failure by drawing part of the energy produced by the still-operating engine to generate thrust at the tip of the opposite wing. For example, the left engine drives its own thrust on the left wing, but a portion of the energy the left engine produces is delivered at a propeller at the tip of right wing. Similarly, the right engine drives its own thrust on the right wing, but a portion of the energy the right engine produces is delivered at a propeller at the tip of the left wing. In this way, every pair of ...

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1. Method for avoiding asymmetric propulsion of an aircraft including a first engine and a first wing tip propeller on a first side of the aircraft and a second engine and a second wing tip propeller on a second side of the aircraft, the method comprising: during normal operation of the first and second engines: (a) deriving drive power from the first engine and applying the derived drive power to the second wing tip propeller, and (b) deriving drive power from the second engine and applying the derived drive power to the first wing tip propeller, and when the first engine fails, continuing to derive drive power from the second engine and applying the derived drive power to the first a wing tip propeller positioned on the same side of the aircraft as the failed first engine without requiring reconfiguration in response to failure of the first engine. 2. The method of claim 1 wherein continuing to derive comprises continuing to derive electric power from the non-failed second engine and using the electric power to drive an electric motor and associated first wing tip propeller on the same side of the aircraft as the failed first engine. 3. The method of claim 1 wherein the second engine comprises a combustion engine. 4. The method of claim 1 further including driving the first and second wing tip propellers with electric motors. 5. The method of claim 1 wherein the first and second wing tip propellers are configured to produce a thrust. 6. The method of claim 1 wherein applying the derived drive power comprises generating a power in an amount that provides moment equilibrium that is inversely proportional to a lever arm related to a thrust line to an aircraft center of gravity. 7. Apparatus for avoiding asymmetric propulsion of an aircraft comprising first and second engines in the event of failure of the first engine, the first engine being disposed on a first side of the aircraft, the second engine being disposed on a second side of the aircraft different from the first side at a distance D2 from the aircraft center of gravity, the second engine producing a thrust T3, the apparatus comprising: an auxiliary engine or motor disposed at a wing tip on the first side of the aircraft and at a distance D1 from the aircraft center of gravity; and a power coupler coupled to the second engine that derives drive power from the second engine and delivers the derived drive power to the auxiliary engine or motor without requiring reconfiguration upon the first engine failing, the power coupler applying the derived drive power to the auxiliary engine or motor to thereby enable the auxiliary engine or motor to deliver a thrust T1 from at the wing tip and prevent the aircraft from yawing due to failure of the first engine, Wherein T1*D1=T3*D2,wherein the power coupler is configured to derive electric power from the second engine and use the electric power to drive the auxiliary engine or motor and associated wine tip propeller on the same side of the aircraft as the failed engine. 8. The apparatus of claim 7 wherein the auxiliary engine or motor drives a wing tip propeller on the first side of the aircraft. 9. The apparatus of claim 7 wherein the first and second engines each comprise combustion engines. 10. The apparatus of claim 7 wherein the auxiliary engine or motor comprises an electric motor. 11. The apparatus of claim 7 wherein the auxiliary engine or motor produces power in an amount to provide moment equilibrium that is inversely proportional to a lever arm related to a thrust line to the aircraft center of gravity. 12. A cross-connected aircraft propulsion system for use with an aircraft having a left wing and a right wing, the aircraft propulsion system comprising: a left engine disposed on the left wing, the left engine generating electrical power; a left electric motor and associated propeller disposed on the tip of the left wing; a right engine disposed on the right wing, the right engine generating electrical power; a right electric motor and associated propeller disposed on the tip of the right wing; a first electrical connection that connects the left engine generated electrical power but not the right engine generated electrical power to the right electrical motor even during normal operation of the right engine; a second electrical connection connecting the right engine generated electrical power but not the left engine generated electrical power to the left electrical motor even during normal operation of the left engine; wherein no reconfiguration of the first or second electrical connections is required in response to failure of the left engine or right engine.

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Asymmetry-proof multi-engine aircraft

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Asymmetry-proof multi-engine aircraft

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IPC 상세정보(version : 201201)

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