[특허]Full ring sliding nacelle with thrust reverser

United Technologies Corporation

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Full ring sliding nacelle with thrust reverser

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-003/04 F02K-001/62 F02K-001/64 F02K-001/70 F02K-001/72 F02K-001/76 F01D-025/24 F02K-001/60
출원번호	US-0230086 (2016-08-05)
등록번호	US-10180117 (2019-01-15)
발명자 / 주소	Suciu, Gabriel L. Chandler, Jesse M. Bomzer, T. David
출원인 / 주소	United Technologies Corporation
대리인 / 주소	Kinney & Lange, P.A.
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록
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A gas turbine engine includes a first annular portion that is stationary and adapted for partially surrounding an engine core. The first annular portion includes a fore pylon connecting portion. The gas turbine engine also includes a rail coupled to the fore pylon and extending in the aft direction from the first annular portion. The gas turbine engine also includes a second annular portion, arranged aft of the first portion and coupled to the rail. The second annular portion is movable along an engine core centerline between a closed position and at least one open position. The second annular portion is configured to engage the first annular portion in the closed position, thereby providing access to the engine core. The gas turbine engine further comprises a thrust reverser arranged in the second annular portion.

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1. A gas turbine engine comprising: an engine core;a fan;a nacelle extending along an engine core centerline; anda thrust reverser arranged in the nacelle, wherein the thrust reverser is a pivot thrust reverser comprising: a first tandem pivot door subassembly;a second tandem pivot door subassembly;an actuator connected to the nacelle, the actuator being oriented parallel to the engine core centerline;a first linkage of the first tandem pivot door subassembly; anda second linkage of the second tandem pivot door subassembly;wherein each of the first linkage and the second linkage are connected to the actuator, the actuator configured to pivot the first tandem pivot door subassembly and the second tandem pivot door subassembly via the first linkage and the second linkage, respectively;wherein the first tandem pivot door subassembly comprises: a first inner panel; anda first outer panel;wherein the first inner panel pivots on a first inner axis that is positionally fixed with respect to an aft edge of the nacelle, and the first outer panel pivots on a first outer axis that is positionally fixed with respect to the aft edge of the nacelle; andwherein the first inner panel and the first outer panel are connected by a first door linkage that is positioned fore of the first inner axis when the first tandem pivot door subassembly is stowed;wherein the second tandem pivot door subassembly comprises: a second inner panel; anda second outer panel;wherein the second inner panel pivots on a second inner axis that is positionally fixed with respect to the aft edge of the nacelle, and the second outer panel pivots on a second outer axis that is positionally fixed with respect to the aft edge of the nacelle; andwherein the second inner panel and the second outer panel are connected by a second door linkage that is positioned fore of the second inner axis when the second tandem pivot door subassembly is stowed;wherein each of the first tandem pivot door subassembly and the second tandem pivot door subassembly respectively surround substantially half of the engine core when deployed; andwherein, when deployed during operation of the gas turbine engine, the first and second tandem pivot door subassemblies are configured to redirect a fan bypass stream generated by the fan while permitting both a core stream generated by the engine core and a nacelle ventilation stream to flow in a similar manner as when the first and second tandem pivot door subassemblies are stowed during operation of the gas turbine engine. 2. The gas turbine engine of claim 1, further comprising: a fore pylon;a first annular portion of the nacelle that is stationary and adapted for partially surrounding the engine core, the first annular portion including a fore pylon connecting portion;a rail coupled to the fore pylon and extending aft from the first annular portion; anda second annular portion of the nacelle, aft of the first portion and coupled to the rail, the second annular portion being movable along the engine core centerline between a closed position and at least one open position, wherein the second annular portion is configured to engage the first annular portion in the closed position, thereby preventing access to the engine core. 3. The gas turbine engine of claim 2, wherein the second annular portion is configured to allow access to a plurality of external core features when the second annular portion is arranged in a partially open position, and wherein the second annular portion is configured to allow access to the engine core when the second annular portion is arranged in a fully open position. 4. The gas turbine engine of claim 1, wherein: the first tandem pivot door subassembly forms a first portion of an outer surface of the nacelle when stowed; andthe second tandem pivot door subassembly is spaced from the first tandem pivot door subassembly and forms a second portion of the outer surface of the nacelle when stowed, wherein the first and second tandem pivot door subassemblies each form a portion of a surface of a bypass duct when stowed. 5. The gas turbine engine of claim 4, wherein the actuator is configured to pivot both the first and second tandem pivot door subassemblies from a stowed position to a deployed position, wherein the actuator is located between the surface of the bypass duct and the outer surface of the nacelle. 6. The gas turbine engine of claim 1, further comprising: a threaded knucklehead that connects the actuator to both the first linkage and the second linkage. 7. The turbine engine of claim 1, wherein: the first inner panel has a first aft edge;the second inner panel has a second aft edge;when the first inner panel and the second inner panel are in a deployed position, the first and second aft edges face each other;the first inner panel has a first cutout; andthe second inner panel has a second cutout. 8. The gas turbine engine of claim 1, wherein each of the first linkage and the second linkage respectively comprise two connected links. 9. The gas turbine engine of claim 1, wherein the first inner panel and the first outer panel of the first tandem pivot door subassembly are configured to rotate simultaneously about the first inner axis and the first outer axis, respectively, and wherein the second inner panel and the second outer panel of the second tandem pivot door subassembly are configured to rotate simultaneously about the second inner axis and the second outer axis, respectively. 10. The gas turbine engine of claim 9, wherein the actuator is configured to pivot both the first tandem pivot door subassembly and the second tandem pivot door subassembly from a stowed position to a deployed position, and wherein the actuator is located between a surface of a bypass duct and an outer surface of the nacelle. 11. The gas turbine engine of claim 1, wherein the first outer axis is located at or near a perimeter of the first outer panel of the first tandem pivot door subassembly. 12. The gas turbine engine of claim 1, wherein the first door linkage is positioned fore of the first outer axis and the second door linkage is positioned fore of the second outer axis. 13. A gas turbine engine comprising: an engine core;a fan;a nacelle extending along an engine core centerline; anda thrust reverser arranged in the nacelle, wherein the thrust reverser is a pivot thrust reverser comprising: a first tandem pivot door subassembly;a second tandem pivot door subassembly;an actuator connected to the nacelle, the actuator being oriented parallel to the engine core centerline;a first linkage of the first tandem pivot door subassembly; anda second linkage of the second tandem pivot door subassembly;wherein each of the first linkage and the second linkage are connected to the actuator, the actuator configured to pivot the first tandem pivot door subassembly and the second tandem pivot door subassembly via the first linkage and the second linkage, respectively;wherein the first tandem pivot door subassembly comprises: a first inner panel; anda first outer panel;wherein the first inner panel pivots on a first inner axis that is positionally fixed with respect to an aft edge of the nacelle, and the first outer panel pivots on a first outer axis that is positionally fixed with respect to the aft edge of the nacelle; andwherein the first inner panel and the first outer panel are connected by a first door linkage that is positioned fore of the first outer axis:wherein the second tandem picot door subassembly comprises: a second inner panel; anda second outer panel;wherein the second inner panel pivots on a second inner axis that is positionally fixed with respect to the aft edge of the nacelle, and the second outer panel pivots on a second outer axis that is positionally fixed with respect to the aft edge of the nacelle; andwherein the second inner panel and the second outer panel are connected by a second door linkage that is positioned fore of the second outer axis; andwherein each of the first tandem pivot door subassembly and the second tandem pivot door subassembly respectively surround substantially half of the engine core when deployed; andwherein, when deployed during operation of the gas turbine engine, the first and second tandem pivot door subassemblies are configured to redirect a fan bypass stream generated by the fan while permitting both a core stream generated by the engine core and a nacelle ventilation stream to flow in a similar manner as when the first and second tandem pivot door subassemblies are stowed during operation of the gas turbine engine. 14. The gas turbine engine of claim 13, further comprising: a fore pylon;a first annular portion of the nacelle that is stationary and adapted for partially surrounding the engine core, the first annular portion including a fore pylon connecting portion;a rail coupled to the fore pylon and extending aft from the first annular portion; anda second annular portion of the nacelle, aft of the first portion and coupled to the rail, the second annular portion being movable along the engine core centerline between a closed position and at least one open position, wherein the second annular portion is configured to engage the first annular portion in the closed position, thereby preventing access to the engine core. 15. The gas turbine engine of claim 14, wherein the second annular portion is configured to allow access to a plurality of external core features when the second annular portion is arranged in a partially open position, and wherein the second annular portion is configured to allow access to the engine core when the second annular portion is arranged in a fully open position. 16. The gas turbine engine of claim 13, wherein: the first tandem pivot door subassembly forms a first portion of an outer surface of the nacelle when stowed; andthe second tandem pivot door subassembly is spaced from the first tandem pivot door Subassembly and forms a second portion of the outer surface of the nacelle when stowed, wherein the first and second tandem pivot door subassemblies each form a portion of a surface of a bypass duct when stowed. 17. The gas turbine engine of claim 16, wherein the actuator is configured to pivot both the first and second tandem pivot door subassemblies from a stowed position to a deployed position, wherein the actuator is located between the surface of the bypass duct and the outer surface of the nacelle. 18. The gas turbine engine of claim 13, further comprising: a threaded knucklehead that connects the actuator to both the first linkage and the second linkage. 19. The gas turbine engine of claim 1, wherein each of the first linkage and the second linkage respectively comprise two connected links.

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Full ring sliding nacelle with thrust reverser

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Full ring sliding nacelle with thrust reverser

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