发明名称 |
Method for controlling pump of working machine |
摘要 |
The present invention is intended to provide a technology that can utilize the advantages of both a load sensing control and a regeneration circuit without causing any problem. A regeneration circuit is added to a hydraulic circuit provided with a hydraulic pressure signal line for detecting a hydraulic pressure value of a circuit and controlling a volume of hydraulic fluid to a cylinder 1 with reference to the detected value. A pressure reducing valve 6 that outputs a reduced pressure as an operating signal to a pump 2, and subsequently the controlling means 5 causes the pressure reducing valve 6 to output a pressure reduction command to a pump 2 and thus to reduce a discharge rate from the pump 2, when the regeneration circuit is in a regeneration state.
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申请公布号 |
US2009202365(A1) |
申请公布日期 |
2009.08.13 |
申请号 |
US20070227801 |
申请日期 |
2007.07.19 |
申请人 |
SHIMADA YOSHIYUKI;YOSHINO TETSUYA;MIKI NOBUHIRO;KANENAWA YUYA;YOKOYAMA YUTAKA;KITAI TAKAYASU |
发明人 |
SHIMADA YOSHIYUKI;YOSHINO TETSUYA;MIKI NOBUHIRO;KANENAWA YUYA;YOKOYAMA YUTAKA;KITAI TAKAYASU |
分类号 |
F04B49/00 |
主分类号 |
F04B49/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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