发明名称 |
Tandem pneumatic brake booster |
摘要 |
The invention relates to a tandem pneumatic brake booster (1) for a vehicle. The objective is to prevent a blocking of a booster thrust rod (4) in the maximum travel position. The blocking appears following a sealed adhesion of a first plate skirt (12) on a seal (22) of the tandem booster. This seal blocks a vacuum in a first front chamber (5). To prevent this blocking, provision is made to crenelate a first lip (23) pressed against the pneumatic piston (3) of a seal. Merlons prevent a sealed adhesion of the plate skirt (12) over the whole seal (22). This absence of adhesion creates a leakage of air to the first front chamber (5) and allows a return to a rest position.
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申请公布号 |
US7694623(B2) |
申请公布日期 |
2010.04.13 |
申请号 |
US20070931604 |
申请日期 |
2007.10.31 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
DIAZ BUENO IGNACIO;AST CHRISTIAN;CAQUET CHRISTIAN;MICHON JEAN-PIERRE |
分类号 |
F15B9/10;F16D65/18;F01B19/00 |
主分类号 |
F15B9/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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