发明名称 |
Device for preventing backflow |
摘要 |
<p>An internal space (101) is provided in the valve housing between two non-return valves. A leakage opening arranged between inlet and outlet. A first non-return valve (37) has an intermediate position between a closed position and an open position. In the intermediate position, the flow connection between the internal space and leakage opening is partially opened.</p> |
申请公布号 |
EP1798350(A2) |
申请公布日期 |
2007.06.20 |
申请号 |
EP20060022972 |
申请日期 |
2006.11.04 |
申请人 |
ALFRED KAERCHER GMBH & CO. KG |
发明人 |
FRIEDRICH, ROLF;SOMMER, HARALD |
分类号 |
E03C1/10;F16K15/06 |
主分类号 |
E03C1/10 |
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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