Landing wheel rotating device for aircraft
阅读：896发布：2023-12-29
专利汇可以提供Landing wheel rotating device for aircraft专利检索，专利查询，专利分析的服务。并且A power operated device associated with the conventional landing gear of an aircraft for causing rotation of the landing wheels of the aircraft by the air-stream moving past the aircraft prior to landing and while still airborne.，下面是Landing wheel rotating device for aircraft专利的具体信息内容。
1. Landing gear for aircraft comprising in combination: a housing, an axle mounted in said housing comprising a first portion and a second portion spacedly arranged in axial alignment, a pair of wheels one fixedly mounted on a first end of each of said first and second portions of said axle for rotation therewith, a slip clutch detachably interconnecting the second juxtapositioned ends of said first and second portions of said axle, and means for rotating said axle prior to said axle being rotated by said wheels when the aircraft is moving along a runway, said means comprising an impeller rotatably connected to said slip clutch for rotating said axle and actuated by the airstream moving past said landing gear, said slip clutch disengaging said wheels from said means when a differential exists between their speed of rotation by the aircraft on the runway and the speed of rotation by said impeller.
2. The landing gear set forth in claim 1 wherein: said slip clutch comprises a housing rotatably mounted on the second juxtapositioned ends of said first and second portions of said axle, and means for detachably connecting said housing to said juxtapositioned ends of said first and second portions of said axle for rotation therewith, said means for rotating said axle being connected to said housing.
3. The landing gear set forth in claim 1 wherein: said housing defines a pair of friction bearing surfaces one adjacent said juxtapositioned ends of said first and second portions of said axle, and disc means mounted on the juxtapositioned ends of said first and second portions of said axle for frictionally engaging associated friction bearing surfaces of said housing.
4. The landing gear set forth in claim 3 in further combination with: spring means for biasing said disc means into engagement with said associated friction bearing surfaces of said housing.
5. The landing gear set forth in claim 4 wherein: said spring means comprises a coil spring coaxially arranged between said juxtapositioned second ends of said first and second portions of said axle having its ends biasing different disc means into frictional contact with their associated friction bearing surfaces of said housing.
6. The landing gear set forth in claim 1 wherein: said impeller comprises a fan blade.
7. The landing gear set forth in claim 6 wherein: said fan blade is covered with a cage.
8. The landing gear set forth in claim 4 wherein: said means for rotating said axle comprises a ring gear fixedly mounted around said housing, a second axle fixedly attached to said impeller at one end for rotation thereby and a pinion gear fixedly attached at its other end, said pinion gear threadly connected to said ring gear for rotating said housing.
9. Landing gear for aircraft comprising in combination: a housing, a pair of spacEd axles parallelly mounted in said housing each comprising a first portion and a second portion spacedly arranged in axial alignment, a pair of wheels for each of said axles one fixedly mounted on a first end of each of said first and second portions of each axle for rotation therewith, a pair of slip clutches one detachably interconnecting the second juxtapositioned ends of each said first and second portions of each of said axles, and common means for rotating said axles prior to said axles being rotated by said wheels when the aircraft is moving along a runway, said means comprising an impeller rotatably connected to said slip clutches for rotating each of said axles and actuated by the airstream moving past said landing gear, said slip clutches disengaging said wheels from said means when a differential exists between their speed of rotation by the aircraft on the runway and the speed of rotation by said impeller.
10. The landing gear set forth in claim 9 wherein: each of said slip clutches comprises a housing rotatably mounted on the second juxtapositioned ends of said first and second portions of a different one of said axles, means for detachably connecting said housings to juxtapositioned ends of said first and second portions of different axles for rotation therewith, said means for rotating said axles being connected to each of said housings.
11. The landing gear set forth in claim 10 wherein: each of said housings define a pair of frictional bearing surfaces one adjacent each of said juxtapositioned ends of said first and second portions of the associated axle, and disc means mounted on the juxtapositioned ends of said first and second portions of the associated axle for frictionally engaging associated friction bearing surface of the housing.
12. The landing gear set forth in claim 11 wherein: said means for rotating said axles comprises a ring gear fixedly mounted around each of said housings, a third axle means fixedly attached to said impeller at one end for rotation thereby and a first pinion gear fixedly attached at its other end, said first pinion gear threadly connected to said ring gear of one of said housing for rotation thereby, a fourth axle means, a second pinion gear fixedly attached to one end of said fourth axle and in threaded arrangement with said ring gear of said one of said housings, a third pinion gear fixedly mounted on the other end of said fourth axle, said third pinion gear being in threaded engagement with said ring gear of said other housing for rotating said other housing upon rotation of said first housing.
13. A method of rotating the wheels of an aircraft during a landing approach comprising the steps of: rotating an impeller mounted on the landing gear of the aircraft by the airstream flowing past the landing gear, rotatably connecting the impeller to at least two of the wheels of the aircraft while the wheels are airborne during a landing approach, and disconnecting the wheels from the impeller upon the wheels touching the ground.
14. The method of rotating the wheels of an aircraft as set forth in claim 13 in further combination with the step of: sequentially disconnecting the wheels of the aircraft from the impeller when the wheels sequentially touch the ground.
15. The method of rotating the wheels of an aircraft as set forth in claim 13 in further combination with the step of: rotatably connecting the impeller to at least two pairs of wheels of the aircraft.
16. The method of rotating the wheels of an aircraft as set forth in claim 13 wherein: the impeller is detachably and rotatably connected to the wheels of the aircraft.
17. The method of rotating the wheels of an aircraft as set forth in claim 13 wherein: the impeller is rotatably connected to two wheels on a common shaft of the landing gear to rotate them in unison while the wheels are airborne during a landing approach.
18. THe method of rotating the wheels of an aircraft as set forth in claim 13 in further combination with the step of: rotating at least two impellers mounted on the landing gear of the aircraft, and rotatably connecting said impellers to at least two of the wheels of the aircraft.
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