Berezhnoi Igor Alexandrovich (ULITSA Tukhachevskogo
253
kv. 18 Kuibyshev SU) Elatontsev Albert Ivanovich (ULITSA Sovetskoi Armil
163
kv. 61 Kuibyshev SU) Ignatiev Vladimir Vasilievich (PROSPE
인용정보
피인용 횟수 :
11인용 특허 :
0
초록▼
The invention relates to aircraft and more particularly an air-cushion landing gear comprising a system of landing gear units suspended from an aircraft, with at least two of the units being spaced transversely with respect to the longitudinal axis of the aircraft, and one of them being arranged on
The invention relates to aircraft and more particularly an air-cushion landing gear comprising a system of landing gear units suspended from an aircraft, with at least two of the units being spaced transversely with respect to the longitudinal axis of the aircraft, and one of them being arranged on the axis ahead of the aircraft center of gravity; each landing gear unit comprises a platform with an annular inflatable cell attached to its underside and used, when inflated, as a flexible curtain circumscribing an air cushion space under the platform, the inflation of each cell and the formation of the air cushion is accomplished by an independent injecting device built in the platform; the spaced-apart cells are provided with an operating device for decelerating and controlling the movement of the aircraft on the runway surface; such a design of the air-cushion landing gear makes it possible to easily and rapidly adapt modern planes and helicopters to such a landing gear with the take-off, landing and taxiing techniques being similar to those used with conventional wheeled landing gears; in addition, the proposed landing gear is more economical and simpler in manufacture and in service as compared to those of the prior art.
대표청구항▼
An aircraft air-cushion landing gear comprising: landing gear units suspended from said aircraft; at least two of said landing gear units being spaced transversely with respect to the longitudinal axis of said aircraft; at least one of said landing gear units being arranged on the longitudinal axis
An aircraft air-cushion landing gear comprising: landing gear units suspended from said aircraft; at least two of said landing gear units being spaced transversely with respect to the longitudinal axis of said aircraft; at least one of said landing gear units being arranged on the longitudinal axis of said aircraft ahead of its center of gravity; each of said landing gear units being suspended from said aircraft by a separate platform; each of said landing gear units having at least one inflatable cell secured to the underside of said platform; each of said inflatable cells of said landing gear units being of a generally annular configuration in plan and, when inflated, circumscribing an air-cushion space under said platform; injecting devices built in the platforms of said landing gear units; each of said injecting devices supplying compressed air to the inner cavity of one of said inflatable cells for inflating it and to said air-cushion space circumscribed thereby for providing a lift force which sustains the aircraft in close proximity to the runway surface during take-off, landing and taxiing; means for decelerating and controlling the aircraft\s movement, provided in at least two of said spaced-apart landing gear units, the platform of each said landing gear unit and the inflatable cell secured thereto being of a generally annular configuration in plan and arranged coaxially, and the injecting device comprises a centrifugal fan whose impeller is disposed under the platform in the upper portion of the air-cushion space circumscribed by the inflatable cell, on its axis, and, to supply compressed air to said impeller, the platform has a through channel, while, for inflating the cell, its inner cavity is coupled to branch pipes whose intake ends are arranged in the direction of the air flow repulsed by the impeller of the fan, the inflatable cell being confined, when inflated, by a cylindrical wall from the outside, whose diameter is equal to that of the platform, and by a truncated conical wall with a larger lower base from the inside, on the side of the air-cushion space, flexible annular membranes being provided inside the inflatable cell, stiffening its side wall and having openings for the passage of air, flexible and stiffening elements being attached to the inner and outer walls of the inflatable cell to facilitate the folding of the cell after it has been deflated to be retracted and pressed against the platform, and elastic cords comprising the flexible elements attached to the walls of the cell in a prestretched condition.
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이 특허를 인용한 특허 (11)
Lu, Zi; Tho, Cheng-Ho; Smith, Michael R.; Seifert, Michael, Active vent and re-inflation system for a crash attentuation airbag.
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