[특허]Engine cowling of a gas turbine with thrust-reversing device and cross-sectionally adjustable outlet nozzle

Rolls-Royce Deutschland Ltd & Co KG

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특허 상세정보

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Engine cowling of a gas turbine with thrust-reversing device and cross-sectionally adjustable outlet nozzle

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02K-001/72 F02K-001/09 F02K-001/76 F02K-003/075 F02C-003/04 F02C-007/14
출원번호	US-0047257 (2016-02-18)
등록번호	US-10151270 (2018-12-11)
우선권정보	DE-10 2015 203 219 (2015-02-23)
발명자 / 주소	Todorovic, Predrag Marquez Gutierrez, Carlos Omar Schieffer, Gero
출원인 / 주소	Rolls-Royce Deutschland Ltd & Co KG
대리인 / 주소	Shuttleworth & Ingersoll, PLC
인용정보	피인용 횟수 : 0 인용 특허 : 7

초록
▼

An engine cowling of an aircraft gas-turbine engine with a thrust-reversing device, with a core engine and a bypass duct surrounding the latter, and with a front cowling enclosing the bypass duct and a rear cowling movable in the axial direction, as well as with cascade elements arranged over the circumference which can be placed by a substantially axial movement into an intermediate space resulting from a movement of the rear cowling relative to the front cowling, characterized in that the cascade elements are connected directly to the rear cowling, that the rear cowling has a rounded outer leading edge and that the cascade element has at its rear area a flow-guiding element, in front of which several thrust-reversing stator vanes are arranged and behind which at least one flow stator vane is arranged whose curvature shape matches the rounding of the outer leading edge of the rear cowling.

대표
청구항
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1. An engine cowling of an aircraft gas-turbine engine, where the aircraft gas-turbine engine includes a thrust-reversing device, a core engine and a bypass duct surrounding the core engine, comprising: a front cowling enclosing the bypass duct,a rear cowling movable in an axial direction of the aircraft gas-turbine engine,a plurality of cascade elements arranged around a circumference of the engine cowling, the plurality of cascade elements being connected directly to the rear cowling to be driven by the rear cowling such that a movement of the rear cowling in the axial direction relative to the front cowling moves the plurality of cascade elements in the axial direction into an intermediate space between the front cowling and the rear cowling,wherein the rear cowling includes a rounded outer leading edge,wherein at least one of the plurality of cascade elements includes: a flow-guiding element at a rear area of the at least one of the plurality of cascade elements,a plurality of thrust-reversing stator vanes positioned in front of the flow-guiding element and configured to direct airflow,a flow stator vane arranged behind the flow-guiding element, the flow stator vane having a curvature shape that matches the rounded outer leading edge of the rear cowling, the flow stator vane being configured to direct airflow in a different direction than the plurality of thrust-reversing stator vanes. 2. The engine cowling in accordance with claim 1, and further comprising wherein a substantially annular and rounded recess positioned in the rear cowling and radially on an inside of the rounded outer leading edge of the rear cowling. 3. The engine cowling in accordance with claim 2, wherein a cross-sectional contour of the rounded outer leading edge and of the recess is substantially S-shaped. 4. The engine cowling in accordance with claim 3, wherein the flow-guiding element has a substantially triangular cross-section and is shaped at a front side to match a curvature in a contour of the plurality of thrust-reversing stator vanes and at a rear side to match the curvature shape of the flow stator vane. 5. The engine cowling in accordance with claim 4, and further comprising a swivellable blocking element arranged at a front area of the rear cowling on an interior of the rear cowling. 6. The engine cowling in accordance with claim 5, wherein the rear cowling is movable into a first position to open an outflow gap between the rear side of the flow-guiding element and the rounded outer leading edge, and into a second position to completely open a thrust-reversing opening. 7. The engine cowling in accordance with claim 4, wherein the rear cowling is movable into a first position to open an outflow gap between the rear side of the flow-guiding element and the rounded outer leading edge, and into a second position to completely open a thrust-reversing opening. 8. The engine cowling in accordance with claim 1, wherein a cross-sectional contour of the rounded outer leading edge and of a recess positioned in the rear cowling is substantially S-shaped. 9. The engine cowling in accordance with claim 8, wherein the flow-guiding element has a substantially triangular cross-section and is shaped at a front side to match a curvature in a contour of the plurality of thrust-reversing stator vanes and at a rear side to match the curvature shape of the flow stator vane. 10. The engine cowling in accordance with claim 9, and further comprising a swivellable blocking element arranged at a front area of the rear cowling on an interior of the rear cowling. 11. The engine cowling in accordance with claim 10, wherein the rear cowling is movable into a first position to open an outflow gap between the rear side of the flow-guiding element and the rounded outer leading edge, and into a second position to completely open a thrust-reversing opening. 12. The engine cowling in accordance with claim 1, wherein the flow-guiding element has a substantially triangular cross-section and is shaped at a front side to match a curvature in a contour of the plurality of thrust-reversing stator vanes and at a rear side to match the curvature shape of the flow stator vane. 13. The engine cowling in accordance with claim 12, and further comprising a swivellable blocking element arranged at a front area of the rear cowling on an interior of the rear cowling. 14. The engine cowling in accordance with claim 13, wherein the rear cowling is movable into a first position to open an outflow gap between the rear side of the flow-guiding element and the rounded outer leading edge, and into a second position to completely open a thrust-reversing opening. 15. The engine cowling in accordance with claim 1, and further comprising a swivellable blocking element arranged at a front area of the rear cowling on an interior of the rear cowling. 16. The engine cowling in accordance with claim 15, wherein the rear cowling is movable into a first position to open an outflow gap between the rear side of the flow-guiding element and the rounded outer leading edge, and into a second position to completely open a thrust-reversing opening. 17. The engine cowling in accordance with claim 1, wherein the rear cowling is movable into a first position to open an outflow gap between the rear side of the flow-guiding element and the rounded outer leading edge, and into a second position to completely open a thrust-reversing opening.

이 특허에 인용된 특허 (7)

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특허 상세정보

Engine cowling of a gas turbine with thrust-reversing device and cross-sectionally adjustable outlet nozzle

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이 특허에 인용된 특허 (7)

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Engine cowling of a gas turbine with thrust-reversing device and cross-sectionally adjustable outlet nozzle

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이 특허에 인용된 특허 (7)

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