发明授权
- 专利标题: EGR valve device
- 专利标题(中): EGR阀装置
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申请号: US11052299申请日: 2005-02-08
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公开(公告)号: US07013880B2公开(公告)日: 2006-03-21
- 发明人: Haruo Watanuki , Satoru Hasegawa , Sotsuo Miyoshi
- 申请人: Haruo Watanuki , Satoru Hasegawa , Sotsuo Miyoshi
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2004-072896 20040315
- 主分类号: F02B47/08
- IPC分类号: F02B47/08
摘要:
An EGR valve device includes a valve housing having one or more exhaust-gas inlet ports and two or more exhaust-gas outlet ports, and forming an exhaust-gas passage communicated with these exhaust-gas inlet ports and exhaust-gas outlet ports; two valve-sheets disposed on the inner peripheral face of the valve housing; a valve shaft assembled into the valve housing; and two valves secured on the valve shaft, and simultaneously abutting on the respective valve-sheets when the valve shaft moved in one direction. It is arranged that the valve housing is formed of material having an axial thermal expansion coefficient larger than that of the valve shaft, and that the distance between the two valve-sheets is set so as to equal with that between the valves at the normal temperature.
公开/授权文献
- US20050199226A1 EGR valve device 公开/授权日:2005-09-15
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