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    • 5. 发明申请
    • Piston for hydraulic clutch
    • 活塞式液压离合器
    • US20080251347A1
    • 2008-10-16
    • US12082392
    • 2008-04-10
    • Toshiki WatanabeYoshiyuki KanzakiKiichiro Goto
    • Toshiki WatanabeYoshiyuki KanzakiKiichiro Goto
    • F16D25/06F16J15/32
    • F16D25/12
    • For incremental sealing performance and cost reduction, a piston comprises a piston main body (1) and a seal ring (2), the seal ring (2) comprises a metal ring (21) including a fitting tube portion (21a) fitted to a cylinder portion (12) of the piston main body (1) and a flange portion (21b) extending radially oppose axially to a pressure receiving portion (11) of the piston main body (1), and a rubber-like seal main body (22) provided on the metal ring (21), and the seal main body (22) has a first seal lip (221) contacting to an inner surface of a clutch cylinder (3), a second seal lip (222) extending from an end of the flange portion (21b) to contact with the pressure receiving portion (11) and an axial direction compression seal portion (223) provided on the flange portion (21b) and compressed toward the pressure receiving portion (11)
    • 为了增加密封性能和成本降低,活塞包括活塞主体(1)和密封环(2),密封环(2)包括金属环(21),金属环(21)包括配合管部分(21a) 活塞主体(1)的气缸部分(12)和沿轴向径向相对于活塞主体(1)的受压部分(11)延伸的凸缘部分(21b),以及橡胶状密封件主体 设置在金属环(21)上的主体(22),密封主体(22)具有与离合器缸(3)的内表面接触的第一密封唇(221),第二密封唇 从所述凸缘部分(21b)的端部与所述压力接收部分(11)接触并且设置在所述凸缘部分(21b)上并朝向所述受压部分(11)压缩的轴向压缩密封部分(223)