发明名称 |
LEAF VALVE STRUCTURE |
摘要 |
A leaf valve structure according to this invention comprises an annular valve seat, and a leaf that is seated on the valve seat under a predetermined elastic supporting force against a pressure of a working fluid on an inner side of the valve seat. A recessed depression portion having an opening portion on both an inner periphery of the valve seat and a seating surface of the leaf is formed in the valve seat, thereby creating a site where the pressure of the working fluid on the inner side of the valve seat can act more easily on a seating surface between the valve seat and the leaf valve. Accordingly, an effect of a surface adsorption force applied to the leaf valve by the valve seat on a cracking pressure can be suppressed, and as a result, the leaf valve can be lifted under a stable cracking pressure.
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申请公布号 |
US2012228071(A1) |
申请公布日期 |
2012.09.13 |
申请号 |
US201113512646 |
申请日期 |
2011.03.24 |
申请人 |
YAMADA HIDEKI;MURAKAMI TOMOHARU;OIKAWA TADASHI;AMINO TOMOHITO;NOMURA YOSHINORI;FINE SINTER CO., LTD.;KAYABA INDUSTRY CO., LTD. |
发明人 |
YAMADA HIDEKI;MURAKAMI TOMOHARU;OIKAWA TADASHI;AMINO TOMOHITO;NOMURA YOSHINORI |
分类号 |
F16F9/348;F16F9/52;F16K17/08 |
主分类号 |
F16F9/348 |
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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