- 专利标题: Hydraulic circuit for construction machine
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申请号: US14536776申请日: 2014-11-10
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公开(公告)号: US09903097B2公开(公告)日: 2018-02-27
- 发明人: Hirofumi Hashimoto
- 申请人: SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.
- 申请人地址: JP Tokyo
- 专利权人: SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.
- 当前专利权人: SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: IPUSA, PLLC
- 优先权: JP2012-136351 20120615
- 主分类号: F16K31/00
- IPC分类号: F16K31/00 ; E02F9/22 ; F15B11/16 ; F15B13/04 ; F15B11/02
摘要:
A hydraulic circuit for a construction machine including a direction control valve group including direction control valves provided in tandem to a center bypass passage, and a bleed-off valve provided to the center bypass passage downstream of the direction control valve group.
公开/授权文献
- US20150059332A1 HYDRAULIC CIRCUIT FOR CONSTRUCTION MACHINE 公开/授权日:2015-03-05
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