发明名称 |
BYPASS VALVE FOR A COOLER CONNECTED DOWNSTREAM OF A HYDRAULIC UNIT |
摘要 |
<p>A bypass valve for a cooler connected downstream from a hydraulic aggregate. The bypass valve includes a housing with ports for connection to the hydraulic aggregate and the cooler. A closure element is located in the housing for closing and opening a bypass. A spring pushes the closure element into a closing position, and thermo-sensitive means causes the closure element to open if the temperature of the hydraulic fluid is below a threshold temperature. The thermo-sensitive means are formed by the valve spring, which is made of a memory-metal alloy with a transition point close to the threshold temperature such that below the threshold temperature it no longer exerts a force and allows the closure element to open.</p> |
申请公布号 |
EP2054691(B1) |
申请公布日期 |
2010.03.31 |
申请号 |
EP20070788019 |
申请日期 |
2007.07.30 |
申请人 |
ZF FRIEDRICHSHAFEN AG |
发明人 |
MARTIN, HANS-JOACHIM;FRITZER, ANTON |
分类号 |
F28F27/02;F01M5/00;F01P7/16 |
主分类号 |
F28F27/02 |
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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