发明名称 Master cylinder comprises bore with primary and secondary sliding pistons, seals in contact with pistons delimit rear supply and front pressure chambers, each piston having drilling forming valve isolating pressure chamber
摘要 The tandem master cylinder (10) comprises a bore (14) in which axial primary (16) and secondary pistons slide. There are seals (48) in contact with each piston delimiting a rear supply chamber (56) and a front pressure chamber (58). Each piston comprises a drilling emerging in its periphery and in its bore (78) which forms a valve (82) for isolating the front pressure chamber when it clears the seal and thus allows the establishment of a braking pressure. The front pressure chamber of each piston comprises a tubular element (90) which can be disengaged inside the associated piston and which extends axially behind the seal in order to seal the drilling along its reduced travel.
申请公布号 FR2847538(A1) 申请公布日期 2004.05.28
申请号 FR20020014779 申请日期 2002.11.22
申请人 ROBERT BOSCH GMBH 发明人 LEBRET PIERRE
分类号 B60T11/20;B60T11/228;B60T11/236;(IPC1-7):B60T11/20 主分类号 B60T11/20
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