发明授权
- 专利标题： Hydraulic circuit for heavy construction equipment
- 专利标题（中）： 重型施工设备液压回路
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申请号： US11408261申请日： 2006-04-20
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公开(公告)号： US07478531B2公开(公告)日： 2009-01-20
- 发明人: Toshimichi Ikeda , Yang Koo Lee
- 申请人： Toshimichi Ikeda , Yang Koo Lee
- 申请人地址： SE Eskilstuna
- 专利权人： Volvo Construction Equipment Holding Sweden AB
- 当前专利权人： Volvo Construction Equipment Holding Sweden AB
- 当前专利权人地址： SE Eskilstuna
- 代理机构： Ladas and Parry LLP
- 优先权： KR10-2005-0120538 20051209
- 主分类号： F16D31/02
- IPC分类号： F16D31/02
摘要：
A hydraulic circuit for heavy construction equipment to reduce a speed of a swing apparatus while a working apparatus such as a boom is concurrently operated has a work control valve which controls a working apparatus cylinder; a confluence valve which combines a hydraulic fluid of the second hydraulic pump with the work unit flow path based on a positions switch; a swing control valve which controls the hydraulic swing motor; and a disconnection valve which disconnects the hydraulic fluid supplied to at least one of the swing motors.
公开/授权文献
- US20070130936A1 Hydraulic circuit for heavy construction equipment 公开/授权日：2007-06-14
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