发明申请
- 专利标题： CONSTANT RESIDUAL PRESSURE VALVE
- 专利标题（中）： 恒压静压阀
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申请号： US12974367申请日： 2010-12-21
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公开(公告)号： US20110147636A1公开(公告)日： 2011-06-23
- 发明人: Shinobu OIKAWA
- 申请人： Shinobu OIKAWA
- 申请人地址： JP Kariya-city
- 专利权人： DENSO CORPORATION
- 当前专利权人： DENSO CORPORATION
- 当前专利权人地址： JP Kariya-city
- 优先权： JP2009-288635 20091221; JP2010-147599 20100629
- 主分类号： F16K27/02
- IPC分类号： F16K27/02
摘要：
A constant residual pressure valve is provided with a valve body, a valve seat, a communication passage, and an orifice upstream of the valve seat. A cylindrical passage is arranged between the orifice and the valve seat in such a manner as to introduce cavitation bubbles toward the valve seat. The cavitation bubbles are generated in the fuel discharged from the orifice. When the cavitation babbles are collapsed, the foreign matters accumulated on the third valve seat 63 and the valve body 69 are removed.