Synchronized motor thrust reverser actuation system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02K-001/54
F02K-001/00
출원번호
UP-0262058
(2005-10-28)
등록번호
US-7513101
(2009-07-01)
발명자
/ 주소
Eschborn, David M.
Dilno, Guy L.
Calmelat, Michael J.
출원인 / 주소
Honeywell International Inc.
대리인 / 주소
Ingrassia, Fisher & Lorenz, P.C.
인용정보
피인용 횟수 :
6인용 특허 :
7
초록▼
A thrust reverser actuation system is provided that includes a synchronization system that synchronizes the actuation of at least two actuators coupled to at least two power drive units. The synchronization system includes a first synchronization shaft coupling the first power drive unit to the seco
A thrust reverser actuation system is provided that includes a synchronization system that synchronizes the actuation of at least two actuators coupled to at least two power drive units. The synchronization system includes a first synchronization shaft coupling the first power drive unit to the second power drive unit and a second synchronization shaft coupling the first power drive unit to the second power drive unit. The at least two actuators are adapted to receive a drive force and configured, in response to receipt of the drive force, to move between a stowed position and a deployed position. The synchronization system is configured to transfer power between the first power drive unit and the second power drive unit, thereby eliminating a mismatch in power and provide uniform deployment of the at least two actuators.
대표청구항▼
We claim: 1. A thrust reverser actuation system, comprising: at least two power drive units each independently operable to supply a drive force; at least two drive mechanisms each coupled to receive the drive force from one of the at least two power drive units; at least two actuators, each actuato
We claim: 1. A thrust reverser actuation system, comprising: at least two power drive units each independently operable to supply a drive force; at least two drive mechanisms each coupled to receive the drive force from one of the at least two power drive units; at least two actuators, each actuator coupled to one of the at least two drive mechanisms to receive the drive force from one of the at least two drive mechanisms, each of the at least two actuators having at least one end that rotates in response to the drive force and configured to move, upon receipt of the drive force, between a stowed position and a deployed position; and a synchronization assembly redundantly coupling together the at least two power drive units and configured to transfer power between the at least two drive units to synchronize movement of the at least two actuators, the synchronization assembly comprising a first flexible shaft coupling a first power drive unit to a second power drive unit and a second flexible shaft coupling the first power drive unit to the second power drive unit, wherein each of the first flexible shaft and the second flexible shaft is configured to provide power transfer between the first and second power drive units. 2. The system of claim 1, wherein the thrust reverser actuation system is a mechanically-governed system. 3. The system of claim 1, wherein the at least two actuators comprise a first end actuator and a second end actuator coupled to each of the at least two drive mechanisms. 4. The system of claim 1, wherein the first flexible shaft has a first end coupled to a forward outboard gear box drive pad of the first power drive unit and a second end coupled to a brake pad housing drive pad of the second power drive unit. 5. The system of claim 1, wherein the second flexible shaft has a first end coupled to an aft outboard gear box drive pad of the first power drive unit and a second end coupled to an aft inboard gear box drive pad of the second power drive unit. 6. The system of claim 1, wherein the first flexible shaft and the second flexible shaft comprise helically wound steel wires. 7. The system of claim 1, wherein the first flexible shaft and the second flexible shaft are positioned over a top of an aircraft engine through a pylon. 8. The system of claim 1, wherein the first flexible shaft and the second flexible shaft are segmented to withstand thermal and helical growth. 9. A thrust reverser actuation system, comprising: a first power drive unit operable to supply a drive force; a second power drive unit operable to supply a drive force; at least two actuators coupled to the first power drive unit and adapted to receive a drive force, each of the at least two actuators having at least one end that rotates in response to the drive force and configured, in response to receipt of the drive force, to move between a stowed position and a deployed position; at least two actuators coupled to the second power drive unit and adapted to receive a drive force, each of the at least two actuators having at least one end that rotates in response to the drive force and configured, in response to receipt of the drive force, to move between a stowed position and a deployed position; and a synchronization assembly redundantly coupling together the first power drive unit and the second power drive unit and configured to transfer power between the first and second power drive units as a result of a mismatch in power between the first and second power drive units, thereby limiting torsion loads to the at least two actuators coupled to the first power drive unit and the at least two actuators coupled to the second power drive unit and provide uniform deployment of a first and second independent transcowls, the synchronization assembly comprising a first flexible shaft coupling the first power drive unit to the second power drive unit and second flexible shaft coupling the first power drive unit to the second power drive unit, wherein each of the first and second flexible shafts are configured to provide a transfer of power between the first and second power drive units. 10. The system of claim 9, wherein the at least two actuators coupled to the first power drive unit comprise a first end actuator and a second end actuator. 11. The system of claim 10, wherein the at least two actuators coupled to the second power drive unit comprise a first end actuator and a second end actuator. 12. The system of claim 9, wherein the first flexible shaft has a first end coupled to a forward outboard gear box drive pad of the first power drive unit and a second end coupled to a brake pad housing drive pad of the second power drive unit. 13. The system of claim 9, wherein the second flexible shaft has a first end coupled to an aft outboard gear box drive pad of the first power drive unit and a second end coupled to an aft inboard gear box drive pad of the second power drive unit. 14. The system of claim 9, wherein the first flexible shaft and the second flexible shaft comprise helically wound steel wires. 15. The system of claim 9, wherein the first flexible shaft and the second flexible shaft are segmented for thermal and helical growth. 16. A thrust reverser synchronization assembly coupled to a first power drive unit and a second power drive unit and configured to provide synchronized deployment of at least one actuator coupled to the first power drive unit and at least one actuator coupled to the second power drive unit, the thrust reverser synchronization assembly comprising: a first synchronization shaft coupling together the first power drive unit and the second power drive unit and configured to transfer power between the first and second power drive units as a result of a mismatch in power between the first and second power drive units; and a second synchronization shaft coupling together the first power drive unit and the second power drive unit and configured to transfer power between the first and second power drive units as a result of a mismatch in power between the first and second power drive units, wherein the first and second synchronization shafts provide redundant coupling of the first and second power drive units, thereby limiting torsion loads to the at least two actuators coupled to each of the first and second power drive units and providing uniform movement of a first and second independent transcowl. 17. The synchronization assembly of claim 16, wherein the first flexible shaft has a first end coupled to a forward outboard gear box drive pad of the first power drive unit and a second end coupled to a brake pad housing drive pad of the second power drive unit. 18. The synchronization assembly of claim 16, wherein the second flexible shaft has a first end coupled to an aft outboard gear box drive pad of the first power drive unit and a second end coupled to an aft inboard gear box drive pad of the second power drive unit. 19. The synchronization assembly of claim 16, wherein the first flexible shaft and the second flexible shaft comprise segmented helically wound steel wires. 20. In a thrust reverser actuation system having at least two actuators coupled to a first power drive unit and at least two actuators coupled to a second power drive unit, a method of synchronizing the deployment of the plurality of at least two actuators, comprising: sensing a mismatch in power between the first power drive unit and the second power drive unit; and transferring power between the first power drive unit and the second power drive unit to eliminate the mismatch, wherein the power is transferred through a plurality of redundant synchronization shafts coupling the first and second power drive units. 21. The method of claim 20, wherein the step of transferring power between the first and second power drive units includes transferring power through a first synchronization shaft coupling the first and second power drive units and a second synchronization shaft coupling the first and second power drive units.
Anderson Michael J. (Stafford GB2) Capewell Terence J. (Staffordshire GB2) Davies Stephen H. (Shropshire GB2) Guy Mark (Staffordshire GB2) Hadley Kevin (South Staffordshire GB2) Harvey John H. (Wolve, Lock for a thrust reverser mechanism, a thrust reverser mechanism, and a thrust reverser.
Baudu Pierre Andre Marcel,FRX ; Gonidec Patrick,FRX ; Rouyer Pascal Gerard,FRX ; Vauchel Guy Bernard,FRX, Synchronizing control system for aircraft jet engine thrust reversers.
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