发明授权
- 专利标题： Pump enable system and method
- 专利标题（中）： 泵启用系统和方法
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申请号： US09245284申请日： 1999-02-05
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公开(公告)号： US06296455B1公开(公告)日： 2001-10-02
- 发明人: Robert D. Backer , David Alan Hall , Robert William Johnston
- 申请人： Robert D. Backer , David Alan Hall , Robert William Johnston
- 主分类号： F04B4900
- IPC分类号： F04B4900
摘要：
A pump enable system includes a variable-displacement piston pump having a displacement control device. The displacement control device controls displacement of pistons in the pump based on a position thereof, and a position control system in the pump controls a position of the displacement control device based on a load on the pump. An over-ride system selectively over-rides the position control system such that the displacement control device assumes a position which reduces displacement of the pistons in the pump.
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