发明申请
- 专利标题: A HYDRAULIC VALVE ARRANGEMENT
- 专利标题(中): 液压阀安排
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申请号: US14785887申请日: 2014-03-31
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公开(公告)号: US20160061225A1公开(公告)日: 2016-03-03
- 发明人: Frede Callesen , Dirk Wroblewski
- 申请人: Danfoss Power Solutions ApS
- 优先权: EP13170452.0 20130604
- 国际申请: PCT/EP2014/056476 WO 20140331
- 主分类号: F15B11/024
- IPC分类号: F15B11/024 ; G05D16/20 ; G05D7/06 ; F15B15/14 ; F16K3/02
摘要:
A hydraulic valve arrangement (1) is provided comprising comprising a supply port arrangement having a high pressure port (2) and a low pressure port (4), a working port arrangement having two working ports (6, 7), a first valve (13) arranged between said high pressure port (2) and said working port arrangement (6, 7), a second valve (14) arranged between said low pressure port (4) and said working port arrangement (6, 7), a controller (19) for controlling said first valve (13) and said second valve (14), said controller (19) having an input connection (20) for receiving a signal of an operator input device, and a regenerative flow path which can be established by means of at least one of said first valve (13) and said second valve (14). The function of such a hydraulic valve arrangement should be enhanced. To this end said controller (19) said controller interrupts said regenerative flow path when a feed pressure at said working port arrangement (6, 7) exceeds a predetermined pressure level.
公开/授权文献
- US09835179B2 Hydraulic valve arrangement 公开/授权日:2017-12-05