[특허]Spider actuated thrust reverser

The Nordam Group, Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Spider actuated thrust reverser

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02K-001/54 F02K-001/00
미국특허분류(USC)	244/110.B
출원번호	US-0955662 (2004-09-30)
등록번호	US-7264203 (2007-09-04)
발명자 / 주소	Lair,Jean Pierre
출원인 / 주소	The Nordam Group, Inc.
인용정보	피인용 횟수 : 16 인용 특허 : 17

초록

A thrust reverser includes reverser doors circumferentially spaced around a nacelle. An arcuate yoke is disposed coaxially around the nacelle. An actuator is mounted tangentially to the yoke for rotary movement thereof. Actuator rods join the doors to the yoke for simultaneous deployment of the doors as the yoke is rotated.

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The invention claimed is: 1. An actuation system for simultaneously moving a plurality of circumferentially spaced apart thrust reverser doors comprising: an arcuate yoke having an axial centerline axis; an actuator mounted tangentially to said yoke for rotary movement of said yoke circumferentially around said centerline axis; and a plurality of circumferentially spaced apart spider rods, each having a proximal end joined to said yoke and a drive fitting at an opposite distal end extending axially from said yoke, for simultaneously moving said plurality of reverser doors as said yoke rotates. 2. A system according to claim 1 further comprising: a plurality of stanchions supporting said yoke at respective ones of said rods; and each of said rods being mounted in a tubular housing fixedly joined to said stanchions. 3. A system according to claim 2 wherein said yoke includes an inclined circumferential drive slot at each of said rods, and each of said rods includes a drive roller at said proximal end disposed in a respective one of said drive slots for driving said rod in translation as said yoke and drive slots are driven circumferentially. 4. A system according to claim 3 wherein: said yoke further includes a rectangular channel at each of said stanchions having radially inner and outer plates joined to a base at one end and being open at an opposite end; each of said stanchions includes a plurality of guide rollers trapping said channel axially and radially for circumferential movement thereof; and said drive slots are disposed in said channel plates for receiving said drive rollers therein, with said rods extending axially outwardly through a respective oven end of said channels. 5. A system according to claim 4 wherein said drive slots extend circumferentially along said channel plates with an acute inclination angle for leveraging axial translation of said rods with circumferential rotation of said yoke. 6. A system according to claim 5 wherein said inclination angle of said drive slots is shallow for effecting greater circumferential stroke of said yoke than axial stroke of said rods. 7. A system according to claim 5 wherein said inclination angle of said drive slots is shallow for amplifying circumferential force in said yoke from said actuator into greater axial force in said rode. 8. A system according to claim 5 wherein said inclination angle of said drive slots is up to about 10 degrees. 9. A system according to claim 5 wherein each of said drive slots further includes detent notches at opposite circumferential ends thereof extending circumferentially parallel to each other and with said yoke. 10. A system according to claim 5 wherein: said yoke includes three of said channels distributed at opposite circumferential ends and in the middle of said yoke; and said actuator includes an output rod joined to a bracket mounted on said channel at a proximal end of said yoke. 11. A system according to claim 1 further comprising: a nacelle including a plurality of circumferentially spaced apart thrust reverser doors pivotally mounted therein; a radial frame fixedly mounted in said nacelle; a plurality of stanchions fixedly mounted to said frame at respective ones of said rods; each of said rods being mounted in a housing fixedly joined to said stanchions; and each of said rods having a proximal end joined to said yoke and a drive fitting at an opposite end joined to a respective one of said doors, and said rods extend axially from said yoke for simultaneously pivoting said doors as said actuator rotates said yoke. 12. A system according to claim 11 wherein said yoke includes an inclined circumferential drive slot at each of said rods, and each of said rods includes a drive roller at said proximal end disposed in a respective one of said drive slots for driving said rod in translation as said yoke and drive slots are driven circumferentially. 13. A system according to claim 12 wherein: said yoke further includes a rectangular channel at each of said stanchions having radially inner and outer plates joined to a base at one end and being open at an opposite end; each of said stanchions includes a plurality of guide rollers trapping said channel axially and radially for circumferential movement thereof; and said drive slots are disposed in said channel plates for receiving said drive rollers therein, with said rods extending axially outwardly through a respective open end of said channels. 14. A system according to claim 13 wherein said drive slots extend circumferentially along said channel plates with an acute inclination angle for leveraging axial translation of said rods with circumferential rotation of said yoke. 15. A system according to claim 14 wherein each of said drive slots further includes detent notches at opposite circumferential ends thereof extending circumferentially parallel to each other and with said yoke. 16. A system according to claim 15 wherein: each of said doors includes a pivot joint disposed intermediate leading and trailing edges thereof for deploying radially outwardly said leading edge of said door; and each door further includes a drive bracket fixedly mounted aft of said pivot joint, and joined to a distal end of a respective one of said rods by an idler link. 17. A system according to claim 16 wherein said inclination angle of said drive slots is shallow for effecting greater circumferential stroke of said yoke than axial stroke of said rods. 18. A system according to claim 17 wherein said inclination angle of said drive slots is up to about 10 degrees. 19. A system according to claim 17 wherein: said yoke includes three of said channels distributed at opposite circumferential ends and in the middle of said yoke; and said actuator is fixedly mounted to said frame, and includes an output rod joined to a bracket mounted on said channel at a proximal end of said yoke. 20. A method of simultaneously moving a plurality of circumferentially spaced apart thrust reverser doors comprising: actuating circumferentially a common yoke; converting circumferential rotation of said yoke into axial translation of a plurality of spider rods joined to respective ones of said doors; and pivoting said doors by axial translation of said spider rods. 21. An actuation system for simultaneously moving a plurality of circumferentially spaced apart thrust reverser doors comprising: an arcuate yoke having an axial centerline axis; a plurality of circumferentially spaced apart spider rods, each having a proximal end joined to said yoke and a drive fitting at an opposite distal end extending axially from said yoke for moving a respective one of said doors; means for rotating said yoke circumferentially around said centerline axis; and means for converting said circumferential rotation of said yoke into translation of said rods for simultaneously moving said doors.

이 특허에 인용된 특허 (17)

이 특허를 인용한 특허 피인용횟수: 16

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특허 상세정보

Spider actuated thrust reverser

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이 특허에 인용된 특허 (17)

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특허 상세정보

Spider actuated thrust reverser

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이 특허에 인용된 특허 (17)

이 특허를 인용한 특허 피인용횟수: 16

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IPC 상세정보(version : 201201)

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