发明授权
- 专利标题： Hydraulic circuit system for hydraulic working machine
- 专利标题（中）： 液压工程机液压回路系统
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申请号： US145158申请日： 1998-09-01
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公开(公告)号： US5940997A公开(公告)日： 1999-08-24
- 发明人: Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kazunori Nakamura , Kouji Ishikawa , Tsuyoshi Nakamura
- 申请人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kazunori Nakamura , Kouji Ishikawa , Tsuyoshi Nakamura
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi Construction Machinery Co., Ltd.
- 当前专利权人： Hitachi Construction Machinery Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX9-241107 19970905; JPX9-241108 19970905; JPX10-029804 19980212
- 主分类号： E02F9/22
- IPC分类号： E02F9/22
摘要：
A hydraulic circuit system includes a shuttle block, and shuttle valves are arranged and connected within the shuttle block. The maximum pressure in a predetermined operation signal pressure group selected from operation signal pressures generated by pilot operating units is selected to produce a control signal pressure within the shuttle block. The control signal pressure is output to control devices such as a track communicating valve, a swing brake cylinder, and regulators for hydraulic pumps.
公开/授权文献
- US5365967A Safety tire valve 公开/授权日：1994-11-22
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