Aircraft landing gear
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0392584
(2010-08-04)
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등록번호 |
US-8684300
(2014-04-01)
|
우선권정보 |
GB-0915009.5 (2009-08-28); GB-1007562.0 (2010-05-06) |
국제출원번호 |
PCT/EP2010/061343
(2010-08-04)
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§371/§102 date |
20120227
(20120227)
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국제공개번호 |
WO2011/023505
(2011-03-03)
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발명자
/ 주소 |
- Wilson, Fraser
- Bedarrides, Jeremy
- Platagea, Vladimir
|
출원인 / 주소 |
- Airbus Operations Limited
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
4 |
초록
▼
An aircraft landing gear comprising: a shock-absorbing main leg having a sprung part for attachment to an aircraft and an un-sprung part including a slider and an axle carrying at least one wheel, the wheel having a toothed ring gear; a drive transmission mounted externally on the sprung part, or on
An aircraft landing gear comprising: a shock-absorbing main leg having a sprung part for attachment to an aircraft and an un-sprung part including a slider and an axle carrying at least one wheel, the wheel having a toothed ring gear; a drive transmission mounted externally on the sprung part, or on the un-sprung part, of the main leg, the drive transmission having at least one motor and a drive pinion for meshing with the toothed ring of the wheel; and an actuator for lifting the drive transmission into and out of driving engagement with the toothed ring and for maintaining the driving engagement as the landing gear deflects during a ground taxiing operation. Also, a method of operating the aircraft landing gear.
대표청구항
▼
1. An aircraft landing gear comprising: a shock-absorbing main leg having a sprung part for attachment to an aircraft and an un-sprung part including an axle carrying at least one wheel, the wheel having a hub and a toothed ring gear mounted to the hub;a drive transmission mounted externally on the
1. An aircraft landing gear comprising: a shock-absorbing main leg having a sprung part for attachment to an aircraft and an un-sprung part including an axle carrying at least one wheel, the wheel having a hub and a toothed ring gear mounted to the hub;a drive transmission mounted externally on the sprung part, or on the un-sprung part, of the main leg, the drive transmission having at least one motor and a drive pinion for meshing with the toothed ring of the wheel; andan actuator for lifting the drive transmission into and out of driving engagement with the toothed ring and for maintaining the driving engagement as the landing gear deflects during a ground taxiing operation. 2. An aircraft landing gear according to claim 1, wherein the drive transmission is detachably mounted. 3. An aircraft landing gear according to claim 1, further comprising an articulating mechanism pivotally mounted on the sprung part, or on the un-sprung part, of the main leg, wherein the articulating mechanism is connected to the actuator and supports the drive transmission. 4. An aircraft landing gear according to claim 3, wherein the articulating mechanism pivot axis is configured to tilt relative to the main leg. 5. An aircraft landing gear according to claim 1, wherein the toothed ring and the drive pinion have associated matching follower surfaces. 6. An aircraft landing gear according to claim 1, wherein the drive pinion includes a constant-velocity joint. 7. An aircraft landing gear according to claim 1, having at least two of the driveable wheels, the wheels each having a toothed ring gear, and the drive transmission including two drive pinions each for meshing with a respective one of the toothed rings. 8. An aircraft landing gear according to claim 7, wherein the drive transmission includes two motors, each for driving a respective one of the drive pinions. 9. An aircraft landing gear according to claim 7, wherein the drive transmission includes a differential drive connected between the or each motor and the drive pinions. 10. An aircraft landing gear according to claim 1, wherein the toothed ring is disposed on the outer diameter of the wheel hub. 11. An aircraft landing gear according to claim 1, wherein the toothed ring has teeth facing radially inwardly or radially outwardly. 12. An aircraft landing gear according to claim 1, wherein the motor is hydraulic or electric. 13. An aircraft landing gear according to claim 1, wherein the drive transmission includes a toothed drive belt. 14. An aircraft landing gear according to claim 1, wherein the toothed ring has a larger diameter than the drive pinion to develop a significant torque magnifying gear ratio. 15. An aircraft landing gear according to claim 1, wherein the drive transmission is mounted externally on the sprung part of the main leg, and the actuator is adapted to maintain the driving engagement between the drive pinion and the toothed ring as the sprung and un-sprung parts of the main leg move relative to one another during the ground taxiing operation. 16. An aircraft including the landing gear according to claim 1 and a power and control system for supplying power to, and controlling operation of, the drive transmission. 17. A method of operating the aircraft landing gear according to claim 1, the method comprising driving the wheel in rotation by supplying power to the motor and engaging the drive transmission with the wheel via the toothed ring as the landing gear deflects during a ground taxiing operation. 18. A method according to claim 17, further comprising disengaging the drive transmission from the wheel. 19. An aircraft landing gear according to claim 1, wherein the drive transmission is mounted externally on the un-sprung part of the main leg.
이 특허에 인용된 특허 (4)
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Jenny Robert William (Bellevue WA), Aircraft wheel drive apparatus and method.
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Lewis ; Jr. Guy C. (41 Poplar Cir. Gulfport MS 39507) Hopkins ; Jr. George P. (Gulfport MS) Gordon Carroll K. (Bay St. Louis MS), Apparatus for prerotating aircraft wheels employing forced air and a vacuum.
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Valdes Guillermo A. (1011 SW. 42nd Ave. ; Apt. 2 Miami FL 33134), Landing gear drive system.
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Holmes Thomas (Sutton Coldfield EN), Skid-control system.
이 특허를 인용한 특허 (7)
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Vana, Jan; Cox, Joseph J.; Cox, Isaiah W.; Edelson, Jonathan S., Aircraft landing gear drive wheel identification system.
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Lo, Charles; Steves, Allan, Aircraft landing gear wheel-drive system.
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Bennett, Michael L., Drive assembly and transmission.
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Lazarovich, David; Morcov, Nicolae; Pleniceanu, Marius, Gate departure system for aircraft.
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Himmelmann, Richard A., Integrated hydrostatic transmission for electronic taxiing operations.
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Didey, Arnaud, Landing gear drive system.
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Cox, Isaiah W.; Cox, Joseph J.; Edelson, Jonathan S.; Rotenberg, Yonatan; Hanson, John, Powered clutch for aircraft wheel drive system.
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