发明授权
- 专利标题: Vacuum booster
- 专利标题(中): 真空助力器
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申请号: US11258146申请日: 2005-10-26
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公开(公告)号: US07255408B2公开(公告)日: 2007-08-14
- 发明人: Akihiko Miwa , Kaoru Tsubouchi , Nobuyuki Hirota , Tomoyasu Sakai
- 申请人: Akihiko Miwa , Kaoru Tsubouchi , Nobuyuki Hirota , Tomoyasu Sakai
- 申请人地址: JP Kariya-Shi, Aichi-Ken
- 专利权人: Aisin Seiki Kabushiki Kaisha
- 当前专利权人: Aisin Seiki Kabushiki Kaisha
- 当前专利权人地址: JP Kariya-Shi, Aichi-Ken
- 代理机构: Buchanan Ingersoll & Rooney PC
- 优先权: JP2001-255239 20010824; JP2001-259885 20010829
- 主分类号: B60T8/44
- IPC分类号: B60T8/44
摘要:
A vacuum booster which moderates a retraction speed of a valve seat member to restrain a contact noise between a key member retracting in a unitary manner with the valve seat member and a flange surface of a plunger. The vacuum booster includes a noise restriction device.
公开/授权文献
- US20060037469A1 Vacuum booster 公开/授权日:2006-02-23
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