发明授权
- 专利标题： Hydraulic drive traveling system
- 专利标题（中）： 液压驱动行驶系统
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申请号： US499418申请日： 1990-06-25
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公开(公告)号： US5177964A公开(公告)日： 1993-01-12
- 发明人: Hideaki Tanaka , Toichi Hirata , Genroku Sugiyama , Hitoshi Kagiwada , Tomohiko Yasuoka , Hiroshi Watanabe , Eiki Izumi , Hiroshi Onoue
- 申请人： Hideaki Tanaka , Toichi Hirata , Genroku Sugiyama , Hitoshi Kagiwada , Tomohiko Yasuoka , Hiroshi Watanabe , Eiki Izumi , Hiroshi Onoue
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi Construction Machinery Co., Ltd.
- 当前专利权人： Hitachi Construction Machinery Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX1-18783 19890127; JPX1-277664 19891025
- 主分类号： E02F9/22
- IPC分类号： E02F9/22 ; F16H61/40 ; F16H61/4069 ; F16H61/4148 ; F16H61/42 ; F16H61/421 ; F16H61/425 ; F16H61/435 ; F16H61/46 ; F16H61/47
摘要：
A hydraulic drive traveling system has a pressure compensated low control valve connected between a hydraulic pump and a variable displacement type hydraulic motor for controlling a flow rate of the hydraulic fluid supplied to the motor. The flow rate is controlled in accordance with the delivery pressure of the pump and demanded traveling speed of the motor. When the delivery pressure of the pump is at a high level, the motor is shifted to a first capacity. When the delivery pressure of the pump is low, the motor is shifted to either the second capacity or the first capacity depending upon the demanded traveling speed.
公开/授权文献
- US5687971A Bingo game management method 公开/授权日：1997-11-18