| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a master cylinder for a hydraulic braking circuit for a motor vehicle, capable of preventing capturing of small solid particles by a static sealing lip. <P>SOLUTION: The master cylinder includes an annular seal (1) placed in a housing (6) of a master cylinder body, and the seal includes an internal dynamic sealing lip (14) surrounding a piston, fitting into an annular groove (20) of the piston when this piston is in a rear rest position, an outer static sealing lip (10) pressing against a wall of the housing, and an additional static sealing lip (16) which presses against a wall of the housing of this seal and, with the outer lip, defines a small closed volume (V) of liquid. <P>COPYRIGHT: (C)2010,JPO&INPIT |
