| 摘要 |
<p>The invention concerns a master cylinder comprising a bore (12) formed in a body (10) and in which slides at least a primary piston (20) provided with a compensating passage (58) communicating in inoperative position a pressure chamber (24) of the master cylinder with a fluid reservoir, said communication being interrupted when the master cylinder is actuated by a control rod (18) acting on a second piston (48) sliding in the bore (12), a first (28) and a second (42) compressing spring stressing the primary piston (20) and the second piston (16) towards their rear inoperative position, the inoperative prestress of the first compression spring (28) being greater than that of the second compression spring (42). The invention is characterised in that the rear inoperative positions of the primary piston (20) and of the second piston (48) are defined by the same stop (36) integral with the master cylinder body (10).</p> |
