发明授权
- 专利标题: Multi-protection valve
- 专利标题(中): 多重保护阀
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申请号: US12516418申请日: 2007-11-29
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公开(公告)号: US08342208B2公开(公告)日: 2013-01-01
- 发明人: Ichirou Minato , Kenji Hattori , Fumiaki Uno , Hiroshi Ozawa
- 申请人: Ichirou Minato , Kenji Hattori , Fumiaki Uno , Hiroshi Ozawa
- 申请人地址: JP Tokyo JP Tokyo
- 专利权人: Nabtesco Corporation,Isuzu Motors Limited
- 当前专利权人: Nabtesco Corporation,Isuzu Motors Limited
- 当前专利权人地址: JP Tokyo JP Tokyo
- 代理机构: Law Offices of Peter H. Priest, PLLC
- 优先权: JP2006-325414 20061201
- 国际申请: PCT/JP2007/001327 WO 20071129
- 国际公布: WO2008/068892 WO 20080612
- 主分类号: F16K11/20
- IPC分类号: F16K11/20 ; B60T13/00
摘要:
An object of the present invention is to allow a vehicle to run in the case where an air compressor connected to an input port fails so as to cause air leakage from the location of the failure, by preventing air in a parking brake circuit from leaking from the failure location through a bleed air flow path. In order to achieve the object, a multi-protection valve includes: a communication passage for communicating between an input chamber and a service output port so as to bypass a pressure control valve provided in correspondence with the service output port, the communication passage having a check valve for preventing air from flowing from the service output port into the input chamber and a throttle for restricting the air flow rate; and a bleed air flow path for communicating between the input chamber and the parking output port so as to bypass pressure control valves, the bleed air flow path having a second check valve for preventing air from flowing from the input chamber to the parking output port. The multi-protection valve further includes a third check valve provided between the input chamber and an input port to prevent air from flowing from the input chamber to the input port.
公开/授权文献
- US20100139786A1 Multi-Protection Valve 公开/授权日:2010-06-10