| 摘要 |
<p>A master cylinder (10) includes a housing (12) defining a stepped bore (14) therein and a reservoir (24) communicating liquid to the stepped bore (14) via a pair of inlets (26, 28). A pair of outlets (30, 32) communicate liquid from the bore (111) to a pair of brake systems (34, 36). A unitary cartridge piston assembly (50) received in the stepped bore (14) defines a variable-volume cavity (174) communicating with one of the pair of inlets (26, 28) and with one of the pair of outlets (30, 32). The cartridge piston assembly (50) cooperates with the housing (12) to define a variable-volume chamber (198) communicating with the other of the pair of inlets (26, 28) and with the other of the pair of outlets (30, 32), The cartridge piston assembly (50) includes a cup-shaped piston member (80) and a piston member (136) which are movable to interrupt fluid communication from the cavity (174) and chamber (198) to the reservoir (24) to trap and pressurize fluid communicating with the brake systems (34, 36). (Figure 1)</p> |
