发明授权
- 专利标题: Vehicle with a boom comprising a hydraulic control circuit with a load control valve
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申请号: US16610828申请日: 2018-05-02
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公开(公告)号: US11225981B2公开(公告)日: 2022-01-18
- 发明人: Davide Cristofori , Giovanni Notarnicola , Alessandro Benevelli
- 申请人: CNH INDUSTRIAL AMERICA LLC
- 申请人地址: US PA New Holland
- 专利权人: CNH INDUSTRIAL AMERICA LLC
- 当前专利权人: CNH INDUSTRIAL AMERICA LLC
- 当前专利权人地址: US PA New Holland
- 代理商 Peter Zacharias; Patrick Sheldrake
- 优先权: IT102017000047745 20170503
- 国际申请: PCT/EP2018/061107 WO 20180502
- 国际公布: WO2018/202659 WO 20181108
- 主分类号: F15B15/00
- IPC分类号: F15B15/00 ; F15B1/02 ; G05B15/02
摘要:
A vehicle including a control valve to lift and lower a boom. The vehicle further includes a control circuit to control a speed of the boom lowering via a pressure compensator that balances a first pressure signal downstream of a control valve during the boom lowering and a second pressure signal from a hydraulic user interface so that, upon increasing of the first pressure signal during the boom lowering, the control valve progressively closes.
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