发明授权
- 专利标题： Hydraulic device for supplying a hydraulic driving unit
- 专利标题（中）： 用于供应液压驱动单元的液压装置
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申请号： US321893申请日： 1994-10-14
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公开(公告)号： US5486106A公开(公告)日： 1996-01-23
- 发明人: Karl Hehl
- 申请人： Karl Hehl
- 专利权人： Hehl; Karl
- 当前专利权人： Hehl; Karl
- 优先权： DEX4335403.3 19931018
- 主分类号： F04B49/08
- IPC分类号： F04B49/08 ; B29C45/82 ; F04B49/06 ; F15B11/00 ; F15B11/028 ; G05D3/20 ; G05D16/20 ; B29C45/80
摘要：
In a hydraulic device a variable capacity pump adapted to record a differential pressure via a control valve is actuated in such a way that a constant operational pressure gradient is maintained. Since the variable capacity pump is driven by a rotary current motor, which is connected to a current source by a frequency converter and is regulable with regard to its speed, it is possible to control hydraulic consumers in an energy-saving manner at a reasonable price.
公开/授权文献
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