Aircraft undercarriage专利检索-起落架飞行器飞机类型专利检索查询-专利查询网

Aircraft undercarriage

阅读：389发布：2024-01-09

专利汇可以提供Aircraft undercarriage专利检索，专利查询，专利分析的服务。并且A pressure-air activated type undercarriage system for aircraft such as shown in U.S. Reissue Pat. No. 26,812, comprising in combination; an inflatable trunk member carried under the aircraft fuselage, and a source of compressed air (or other fluid) in conjunction therewith; the trunk being jet-apertured along the footprint area thereof to provide a fluid-film lubricated undercarriage system when operating in one mode; and a secondary load supporting, fluid-tight, variably inflatable bladder or bladders disposed interiorly of the trunk and selectively inflatable to various degrees independently of inflation of the trunk member. Thus the aircraft is capable of being ''''parked'''' on a solid or fluid ''''airport'''' surface; or it may be caused to ''''kneel'''' or ''''squat'''' in any preferred attitude or elevation relative to the surface, so as to facilitate passenger/cargo loading/unloading operations while requiring no continuing compressed fluid supply to the undercarriage system. Adjunctively, the inner bladder may be pilot-inflated to any desired degree, and then maintained in such inflated condition by simply closing an appropriate valve in the control system; whereby the airplane undercarriage is then operable in floatation mode although the compressed air supply engine(s) of the craft may be shut down.，下面是Aircraft undercarriage专利的具体信息内容。

权利要求

1. A dual mode operative aircraft undercarriage trunk system comprising in combination, an air inflatable casing member attached to the aircraft fuselage and adapted to be inflated so as to balloon-out from the aircraft fuselage for air cushion type support of the aircraft relative to a reaction surface, said casing member being formed of flexible airtight sheet material adapted to expand in response to internal air pressure into a balloonshape of prescribed form and dimensions, a bladder member formed of airtight flexible sheet material disposed interiorly of said casing member, conduit means carrying separate supplies of compressed air into the interiors of said casing member and said bladder member, respectively, valve means under control of the aircraft operator for regulating the supply of compressed air to said casing and bladder members, respectively, and for controlling evacuation of said bladder member, said casing member being apertured along the lowermost surface portion thereof whereby to permit escape of air from within said casing when said casing is inflated, and means for causing said trunk system to contract into fuselage-hugging position when uninflated, whereby when the aircraft is operating in flight mode the operator may cause the trunk system to contract compactly against the aircraft fuselage, and whereby the aircraft may be prepared for landing, taxiing, and take-off operations by pilot control of said valve means so as to cause said outer casing member to expand and discharge air therebelow so as to create a transient air-cushion between the aircraft and a reaction surface, and whereby the operator may actuate said valve means so as to inflate said bladder member to any desired degree whereby to provide interiorly of said casing member a confined air-cushion support for the aircraft when resting upon a ground or water surface or the like.

2. An aircraft undercarriage trunk system as set forth in claim 1 wherein said casing member is formed substantially of elastic sheet material.

3. An aircraft undercarriage trunk system as set forth in claim 1 wherein said bladder member is formed substantially of elastic sheet material.

4. An aircraft undercarriage trunk system as set forth in claim 1 wherein said means for causing said trunk system to contract when uninflated comprises a mechanically operated retraction system.

5. An aircraft having a plurality of undercarriage trunk systems as set forth in claim 1.

6. An aircraft as set forth in claim 5 wherein said trunk systems are arranged in fore-aft directionally aligned relation under said aircraft.

7. An aircraft as set forth in claim 5 wherein said trunk systems are disposed at opposite sides of said aircRaft.

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Aircraft undercarriage

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