Actuation system for a lift assisting device and lined track rollers used therein
First Claim
1. An actuation system for deploying and retracting a lift assisting device of a leading edge of a wing of an aircraft, the actuation system comprising:
- a track pivotally coupled to the lift assisting device, the track having first and second outer surfaces and side surfaces;
a shaft rotationally coupled within the wing of the aircraft and operable, in response to flight control signals, to deploy or retract the lift assisting device;
means for actuating the lift assisting device, coupled to the shaft, between a retracted position to a deployed position along an arcuate path; and
a plurality of track roller bearings rotatably contacting the first and second outer surfaces of the track to guide the track along the arcuate path,wherein each of the track roller bearings comprises an inner ring having an outer bearing surface and an outer ring having an inner bearing surface, the inner ring being disposed at least partially in the outer ring and at least one of the track roller bearings has a self lubricating liner secured to at least one of the outer bearing surface and the inner bearing surface, to carry loads transmitted to the track roller bearing from the track.
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Accused Products
Abstract
An actuation system for deploying and retracting a lift assisting device of a leading edge of a wing of an aircraft including a track pivotally coupled to the lift assisting device. The track has first and second outer surfaces and side surfaces. The actuation system includes a shaft rotationally coupled within the wing of the aircraft and operable, in response to flight control signals, to deploy or retract the lift assisting device. The actuation system includes an actuator for actuating the lift assisting device, coupled to the shaft, between a retracted position to a deployed position along an arcuate path. The actuation system includes a plurality of track roller bearings rotatably contacting the first and second outer surfaces of the track to guide the track along the arcuate path. The plurality of track roller bearings includes one or more lined track roller assembly.
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Citations
11 Claims
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1. An actuation system for deploying and retracting a lift assisting device of a leading edge of a wing of an aircraft, the actuation system comprising:
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a track pivotally coupled to the lift assisting device, the track having first and second outer surfaces and side surfaces; a shaft rotationally coupled within the wing of the aircraft and operable, in response to flight control signals, to deploy or retract the lift assisting device; means for actuating the lift assisting device, coupled to the shaft, between a retracted position to a deployed position along an arcuate path; and a plurality of track roller bearings rotatably contacting the first and second outer surfaces of the track to guide the track along the arcuate path, wherein each of the track roller bearings comprises an inner ring having an outer bearing surface and an outer ring having an inner bearing surface, the inner ring being disposed at least partially in the outer ring and at least one of the track roller bearings has a self lubricating liner secured to at least one of the outer bearing surface and the inner bearing surface, to carry loads transmitted to the track roller bearing from the track. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification