发明授权
- 专利标题： HYDRAULISCHE STEUERANORDNUNG
- 专利标题（英）： Hydraulic control arrangement
- 专利标题（中）： 液压控制装置，
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申请号： EP05755620.1申请日： 2005-06-23
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公开(公告)号： EP1781952B1公开(公告)日： 2011-09-07
- 发明人: BREUNIG, Alfred , KRUG-KUSSIUS, Karl , PETERSEN, Jörn
- 申请人： Bosch Rexroth AG
- 申请人地址： Heidehofstrasse 31 70184 Stuttgart DE
- 专利权人： Bosch Rexroth AG
- 当前专利权人： Bosch Rexroth AG
- 当前专利权人地址： Heidehofstrasse 31 70184 Stuttgart DE
- 代理机构： Polte, Willi
- 优先权： DE102004035632 20040722; DE102005022275 20050510
- 国际公布： WO2006010419 20060202
- 主分类号： F15B11/024
- IPC分类号： F15B11/024 ; F15B11/042 ; F15B11/028 ; F16K17/10 ; F16K17/06
摘要：
The invention relates to a hydraulic control arrangement and a pilot-operated pressure relief valve therefor. Said hydraulic control arrangement comprises a differential cylinder provided with a pressure chamber on the piston rod side thereof, and another pressure chamber at the bottom thereof. Said pressure chambers can be connected to a pump or a tank by means of a control valve arrangement in order to actuate the differential cylinder. The pressure in a pressure chamber is defined by a pilot-operated pressure relief valve provided with a pressure switching stage, by which means the pressure regulated by the pressure relief valve can be lowered according to the pressure in the other pressure chamber.
公开/授权文献
- EP1781952A1 HYDRAULISCHE STEUERANORDNUNG 公开/授权日：2007-05-09
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