IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0796189
(1997-02-07)
|
발명자
/ 주소 |
- Lane, Jeffery G.
- Magarro, Richard B.
|
출원인 / 주소 |
- McDonnell Douglas Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
9 |
초록
▼
A nacelle comprised of a rigid shroud and a support truss. The shroud encloses the truss and a rocket engine. The shroud is comprised of three sections, including a top section and two side sections. The top section has openings to permit the communication of lines for liquid propellant, electrical
A nacelle comprised of a rigid shroud and a support truss. The shroud encloses the truss and a rocket engine. The shroud is comprised of three sections, including a top section and two side sections. The top section has openings to permit the communication of lines for liquid propellant, electrical current, and hydraulic fluid between the engine and an attached flight vehicle. The two side sections are connected to each other by longitudinal field joints, and to the top section by a circumferential field joint. The rocket engine is attached to the flight vehicle by a gimbal allowing the engine to rotate relative to the flight vehicle about orthogonal pitch and yaw axes. A pair of actuators is located in the flight vehicle, one to control the rotation of the rocket engine about the pitch axis, and the other to control its rotation about the yaw axis. The truss is attached to the body of the rocket engine. The two actuators are respectively connected to the shroud at a pair of hard points where the shroud is attached to the truss. The shroud is also fastened to the rocket engine around the circumference of the nozzle's exhaust orifice, and around an attachment cone located adjacent to the gimbal. The actuator forces are transmitted to the rocket engine primarily through the truss. Since the shroud is attached to the rocket engine, the shroud rotates with the rocket engine relative to the flight vehicle.
대표청구항
▼
1. A nacelle for protecting a rocket engine which is rotatably attached to a flight vehicle, the nacelle comprising:a shroud enclosing the rocket engine; and,attachment means for attaching said shroud to the rocket engine for rotatable movement with the rocket engine relative to the flight vehicle.
1. A nacelle for protecting a rocket engine which is rotatably attached to a flight vehicle, the nacelle comprising:a shroud enclosing the rocket engine; and,attachment means for attaching said shroud to the rocket engine for rotatable movement with the rocket engine relative to the flight vehicle. 2. The nacelle as set forth in claim 1, wherein the flight vehicle includes an actuator for rotating the rocket engine and said shroud relative to the flight vehicle. 3. The nacelle as set forth in claim 2, further comprising transmission means for transmitting rotational forces generated by the actuator to the rocket engine. 4. The nacelle as set forth in claim 3, wherein said transmission means is enclosed by said shroud. 5. The nacelle as set forth in claim 4, wherein said transmission means comprises a truss. 6. The nacelle as set forth in claim 3, wherein said transmission means comprises a truss. 7. The nacelle as set forth in claim 5, wherein said shroud and the actuator are both attached to said truss at a hard point. 8. The nacelle as set forth in claim 1, wherein said shroud is comprised of a plurality of sections attached to one another. 9. The nacelle as set forth in claim 8, wherein said plurality of sections include a top section, a first side section, and a second side section. 10. The nacelle as set forth in claim 9, further comprising field joints for attaching said plurality of sections together. 11. The nacelle as set forth in claim 10, wherein said field joints include:a longitudinal field joint for attaching said first side section to said second side section; and,a circumferential field joint for attaching said top section to said first and second side sections. 12. The nacelle as set forth in claim 1, wherein said attachment means includes fastener means for fastening said shroud directly to the rocket engine. 13. The nacelle as set forth in claim 1, further comprising a gimbal for rotatably attaching the rocket engine to the flight vehicle to allow rotation of the rocket engine and said shroud attached thereto relative to the flight vehicle. 14. The nacelle as set forth in claim 13, wherein the gimbal allows rotation of the rocket engine and said shroud attached thereto about both a pitch axis and a yaw axis. 15. The nacelle as set forth in claim 1, wherein the flight vehicle includes:a pitch actuator for rotating the rocket engine and said shroud relative to the flight vehicle about a pitch axis; and,a yaw actuator for rotating the rocket engine and said shroud relative to the flight vehicle about a yaw axis. 16. The nacelle as set forth in claim 15, further comprising transmission means for transmitting yaw and pitch forces generated by the yaw and pitch actuators, respectively, to the rocket engine. 17. The nacelle as set forth in claim 16, wherein said transmission means is enclosed by said shroud. 18. The nacelle as set forth in claim 17, wherein said transmission means comprises a truss. 19. The nacelle as set forth in claim 18, wherein:the pitch actuator is attached to said truss at a first hard point; and,the yaw actuator is attached to said truss at a second hard point. 20. A nacelle for protecting a rocket engine which is rotatably attached to a flight vehicle, the nacelle comprising:a shroud enclosing the rocket engine; and,attachment facilities for attaching said shroud to the rocket engine for rotatable movement with the rocket engine relative to the flight vehicle. 21. A nacelle for protecting a rocket engine which is rotatably attached to a flight vehicle to permit two axis rotation of the rocket engine with respect to the flight vehicle, the nacelle comprising:a shroud enclosing the rocket engine; andmeans for attaching the shroud to the rocket engine for rotatable movement with the rocket engine relative to the flight vehicle. 22. The nacelle as set forth in claim 21, wherein the nacelle is rotated by an actuator disposed within the flight vehicle. 23. The nacelle as set forth in claim 21, w herein the attachment means includes means for fastening the shroud directly to the rocket engine. 24. The nacelle as set forth in claim 21, further comprising gimbal means for rotatably attaching the rocket engine to the flight vehicle to thereby allow two axis rotation of the rocket engine and the shroud attached thereto with respect to the flight vehicle.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.