发明名称 Contracting landing gear shock strut
摘要 Initial retraction of telescoping cylinders (22, 72) forces hydraulic fluid through an orifice area into a low pressure chamber (116). When the cylinders (22, 72) reach a predetermined position, a stop surface (120) carried by the second cylinder (72) engages a floating member (52) carried by the first cylinder (22). Further retraction causes the floating member (52) to move relative to the first cylinder (22) and compress a high pressure chamber (44). When the shock strut (20) is pivoted into a stowed position, the cylinders (22, 72) are retracted to the predetermined position without compressing the high pressure chamber (44). In a second embodiment, a linkage mechanism (298) moves the high pressure chamber (318) relative to the first cylinder (272) to allow the shock strut (220) to be shortened beyond the predetermined position without compressing the high pressure chamber 318.
申请公布号 US4907760(A) 申请公布日期 1990.03.13
申请号 US19880196618 申请日期 1988.05.18
申请人 THE BOEING COMPANY 发明人 SEALEY, FRANCIS;WEILAND, RICHARD H.
分类号 B64C25/60 主分类号 B64C25/60
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