发明名称 |
Relief pressure switching apparatus for hydraulic working machine |
摘要 |
In a relief pressure switching apparatus for hydraulic working machine for switching a relief pressure of a hydraulic actuator circuit in accordance with a specification of a compression crushing apparatus or a breaker to be installed, electromagnetically variable relief valves (19,20) for determining the relief pressure are provided, and a controller (18) commands the relief pressure selected by an operator from a plurality of relief pressures preliminarily set and stored in combination with a flow rate as matching a working apparatus to the relief valves. |
申请公布号 |
EP1925825(A2) |
申请公布日期 |
2008.05.28 |
申请号 |
EP20070121497 |
申请日期 |
2007.11.26 |
申请人 |
KOBELCO CONSTRUCTION MACHINERY CO., LTD. |
发明人 |
YAMASHITA, KOJI;UEDA, KOJI |
分类号 |
F15B11/02;E02F9/26;F15B20/00 |
主分类号 |
F15B11/02 |
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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