[특허]Tandem thrust reverser with multi-bar linkage

United Technologies Corporation

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Tandem thrust reverser with multi-bar linkage

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02K-001/72 F02K-001/60 F02K-001/62 F02K-001/64 B64D-029/00 B23P-019/04 F02K-001/76
출원번호	US-0184368 (2014-02-19)
등록번호	US-9822734 (2017-11-21)
발명자 / 주소	Chandler, Jesse M. Suciu, Gabriel L.
출원인 / 주소	United Technologies Corporation
대리인 / 주소	Kinney & Lange, P.A.
인용정보	피인용 횟수 : 2 인용 특허 : 51

초록
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One embodiment includes a pivot thrust reverser. The pivot thrust reverser includes a first tandem pivot door subassembly comprising an inner panel and an outer panel. The inner panel and the outer panel are connected so as to rotate simultaneously about respective pivot axes that are each positionally fixed axes relative to the gas turbine engine assembly. A second tandem pivot door subassembly is included, spaced from the first tandem pivot door subassembly and comprising an inner panel and an outer panel. The inner panel and the outer panel are connec...

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1. A pivot thrust reverser for use in a gas turbine engine assembly, the pivot thrust reverser comprising: a first tandem pivot door subassembly comprising an inner panel and an outer panel, wherein the inner panel and the outer panel are connected so as to rotate simultaneously about respective pivot axes that are each positionally fixed axes relative to the gas turbine engine assembly and the inner panel is entirely radially inward from the outer panel when the first tandem pivot door subassembly is in a stowed position;a linkage having a first end operatively connected to an actuator and a second end operatively connected to the inner panel of the first tandem pivot door subassembly;a pivot point located on the linkage between the first end and the second end, the inner panel of the first tandem pivot door subassembly being rotatable about the pivot point, wherein the pivot axis of the inner panel passes through the pivot point; anda second tandem pivot door subassembly spaced from the first tandem pivot door subassembly and comprising an inner panel and an outer panel, wherein the inner panel and the outer panel are connected so as to rotate simultaneously about respective pivot axes that are each positionally fixed axes relative to the gas turbine engine assembly and the inner panel is entirely radially inward from the outer panel when the second tandem pivot door subassembly is in the stowed position. 2. The pivot thrust reverser of claim 1, wherein the actuator is configured to pivot both the first tandem pivot door subassembly and the second tandem pivot door subassembly from the stowed position to a deployed position, and wherein the actuator is located between a surface of a bypass duct and an outer surface of a nacelle. 3. The pivot thrust reverser of claim 1, wherein in a deployed position the first tandem pivot door subassembly and the second tandem pivot door subassembly circumferentially surround an inner surface of a bypass duct such that when the pivot thrust reverser is deployed during engine operation a fan bypass stream is redirected while both a core stream and a nacelle ventilation stream flow in the same manner as when the pivot thrust reverser is stowed. 4. The pivot thrust reverser of claim 1, wherein the inner panel and the outer panel of the first tandem pivot door subassembly are connected by a multi-bar linkage. 5. The pivot thrust reverser of claim 4, further comprising an overhang on each of two surfaces of the outer panel of the first tandem pivot door subassembly. 6. The pivot thrust reverser of claim 4, wherein the inner panel and the outer panel of the second tandem pivot door subassembly are connected by a multi-bar linkage. 7. The pivot thrust reverser of claim 1, wherein the outer panel of the first tandem pivot door subassembly is rotatable about an outer panel pivot point that is located at or near a perimeter of the outer panel of the first tandem pivot door subassembly. 8. The pivot thrust reverser of claim 1, wherein when the first tandem pivot door subassembly is in the stowed position an aft edge of the outer panel of the first tandem pivot door subassembly substantially extends longitudinally beyond an aft edge of the inner panel of the first tandem pivot door subassembly, but when the first tandem pivot door subassembly is in a deployed position the aft edge of the inner panel of the first tandem pivot door subassembly substantially extends longitudinally beyond the aft edge of the outer panel of the first tandem pivot door subassembly. 9. A method for use with a gas turbine engine, the method comprising: providing a first tandem pivot door subassembly comprising an inner panel and an outer panel entirely radially outward from the inner panel when the first tandem pivot door subassembly is in a stowed position;connecting the inner panel and the outer panel of the first tandem pivot door subassembly to allow the inner panel and the outer panel to rotate simultaneously about different pivot axes; andpivotally deploying the first tandem pivot door subassembly from the stowed position to a deployed position by an actuator, wherein the inner and outer panels are pivotally deployed by the actuator on respective pivot axes each positionally fixed relative to the gas turbine engine, and wherein the inner panel is rotatable about a pivot point located on a linkage between a first end that is operatively connected to the actuator and a second end that is operatively connected to the inner panel, and wherein the pivot axis of the inner panel passes through the pivot point. 10. The method of claim 9, further comprising: providing a second tandem pivot door subassembly spaced from the first tandem pivot door subassembly comprising an inner panel and an outer panel entirely radially outward from the inner panel of the second tandem pivot door subassembly when the second tandem pivot door subassembly is in the stowed position; andconnecting the inner panel and the outer panel of the second tandem pivot door subassembly to allow the inner panel and the outer panel of the second tandem pivot door subassembly to rotate simultaneously about different pivot axes; andpivotally deploying the second tandem pivot door subassembly from the stowed position to the deployed position by the actuator, wherein the inner and outer panels of the second tandem pivot door subassembly are pivotally deployed by the actuator on respective pivot axes each positionally fixed relative to the gas turbine engine. 11. The method of claim 10, further comprising: circumferentially surrounding a portion of an inner surface of a bypass duct with the first tandem pivot door subassembly and the second tandem pivot door subassembly when the first tandem pivot door subassembly and the second tandem pivot door subassembly are in the deployed position; andredirecting a fan bypass stream during engine operation when the first tandem pivot door subassembly and the second tandem pivot door subassembly are in the deployed position. 12. The method of claim 11, further comprising: locating the first tandem pivot door subassembly in a location such that the first tandem pivot door subassembly forms both a first portion of an outer surface of the bypass duct and a first portion of an outer surface of a nacelle when in the stowed position; andlocating the second tandem pivot door subassembly in a location such that the second tandem pivot door subassembly forms both a second portion of the outer surface of the bypass duct and a second portion of the outer surface of the nacelle when in the stowed position. 13. The method of claim 10, wherein the inner panel and the outer panel of the first tandem pivot door subassembly are connected by a first multi-bar linkage, and the inner panel and the outer panel of the second tandem pivot door subassembly are connected by a second multi-bar linkage. 14. A pivot thrust reverser comprising: a first tandem pivot door subassembly comprising an inner panel with an aft edge, an outer panel with an aft edge, and a connection between the inner panel and the outer panel, wherein the inner panel and the outer panel rotate simultaneously about respective pivot axes that are each positionally fixed axes relative to a gas turbine engine, wherein the inner panel is entirely radially inward from the outer panel when the first tandem pivot door subassembly is in a stowed position, the inner panel is rotatable about a first pivot point located on a first linkage operatively connected between an actuator and the inner panel of the first tandem pivot door subassembly, and the first pivot point is located on the first linkage between a first end and a second end and wherein the pivot axis of the inner panel passes through the first pivot point;a second tandem pivot door subassembly comprising an inner panel with an aft edge, an outer panel with an aft edge, and a connection between the inner panel and the outer panel, and wherein the inner panel is entirely radially inward from the outer panel when the second tandem pivot door subassembly is in the stowed position and when the first tandem pivot door subassembly and the second tandem pivot door subassembly are in a deployed position the aft edge of the first tandem pivot door subassembly inner panel faces the aft edge of the second tandem pivot door subassembly inner panel and the aft edge of the first tandem pivot door subassembly outer panel faces the aft edge of the second tandem pivot door subassembly outer panel;a first cutout on the first tandem pivot door subassembly inner panel; anda second cutout on the second tandem pivot door subassembly inner panel. 15. The pivot thrust reverser of claim 14, wherein both the first cutout and the second cutout are arc-shape. 16. The pivot thrust reverser of claim 14, further comprising an inward-facing protrusion on both the first tandem pivot door subassembly outer panel and the second tandem pivot door subassembly outer panel, wherein the inward-facing protrusions are of a shape complementary with the first and second cutouts. 17. The pivot thrust reverser of claim 14, further comprising a second pivot point of the inner panel of the second tandem pivot door subassembly that is located on a second linkage operatively connected between the actuator and the inner panel of the second tandem pivot door subassembly with the second pivot point being located on the second linkage between a first end and a second end. 18. The pivot thrust reverser of claim 14, wherein the first tandem pivot door subassembly outer panel is larger than the first tandem pivot door subassembly inner panel and the second tandem pivot door subassembly outer panel is larger than the second tandem pivot door subassembly inner panel. 19. The pivot thrust reverser of claim 14, wherein the connection between the inner panel and the outer panel of the first tandem pivot door subassembly and the connection between the inner panel and the outer panel of the second tandem pivot door subassembly is made by a multi-bar linkage. 20. The pivot thrust reverser of claim 19, further comprising an overhang on each of two surfaces of the outer panel of the first tandem pivot door subassembly.

이 특허에 인용된 특허 (51)

이 특허를 인용한 특허 피인용횟수: 2

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Tandem thrust reverser with multi-bar linkage

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이 특허에 인용된 특허 (51)

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Tandem thrust reverser with multi-bar linkage

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이 특허에 인용된 특허 (51)

이 특허를 인용한 특허 피인용횟수: 2

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