发明名称 |
Vacuum control valve |
摘要 |
A vacuum modulating chamber of a vacuum control valve is communicated with a diaphragm chamber of a EGR valve for controlling an amount of exhaust gas to be recirculated into combustion chambers of an engine, so that a modulated negative pressure is applied thereto. The chamber is provided with a diaphragm deflected responding to the negative pressure in the chamber. The vacuum control valve is further provided with a cam member and a spring which urges the diaphragm in one direction so as to change a value at which the pressure in the vacuum modulating chamber is controlled, wherein a diameter of the cam member is larger than that of the diaphragm.
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申请公布号 |
US4416243(A) |
申请公布日期 |
1983.11.22 |
申请号 |
US19820370069 |
申请日期 |
1982.04.20 |
申请人 |
NIPPONDENSO CO., LTD. |
发明人 |
NAITO, MITIKATU;YANO, KIYOTOSI;ITOU, KAZUO |
分类号 |
F16K31/126;F02B3/06;F02D3/00;F02D21/08;F02D35/00;F02M25/07;G05D16/06;(IPC1-7):F02M25/06 |
主分类号 |
F16K31/126 |
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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