- 专利标题： Hydraulic pressure control system
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申请号： US210245申请日： 1988-06-24
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公开(公告)号： US5255705A公开(公告)日： 1993-10-26
- 发明人: Kazuo Uehara , Tadao Karakama , Sadao Nunotani , Naoki Ishizaki , Masayuki Tanaami
- 申请人： Kazuo Uehara , Tadao Karakama , Sadao Nunotani , Naoki Ishizaki , Masayuki Tanaami
- 申请人地址： JPX Tokyo
- 专利权人： Kabushiki Kaisha Komatsu Seisakusho
- 当前专利权人： Kabushiki Kaisha Komatsu Seisakusho
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX6-16934 19860130; JPX61-135011 19860612; JPX61-230029 19860930
- 主分类号： F15B11/08
- IPC分类号： F15B11/08 ; F15B13/04 ; F15B13/042 ; F16K31/383 ; G05D7/01
摘要：
A pressure control system in which a pressure in a back pressure chamber of a flow control valve is controlled according to a throttle opening of a pilot valve to locate stationary the valve body of the flow control valve at a position corresponding to the throttle opening of the pilot valve. In the system, a fixed throttle is provided in an oil passage extended to the back pressure chamber of the flow control valve, thereby applying a dampering action to the valve body.