发明名称 |
PUMP DEVICE AND HYDRAULIC ACTUATOR |
摘要 |
Provided is a pump device and a hydraulic actuator that can reduce the number of steps of performance measurement. The pump device includes: a switching valve for switching a flow of oil to a first chamber or a second chamber of a cylinder device, the inside of which is segmented into the first chamber and the second chamber by a piston; an up blow valve (first chamber-side relief valve) that relieves pressure of a first chamber-side flow path connected to the first chamber; and a down blow valve (second chamber-side relief valve) that relieves pressure of a second chamber-side flow path connected to the second chamber. |
申请公布号 |
CA2868898(A1) |
申请公布日期 |
2015.09.25 |
申请号 |
CA20142868898 |
申请日期 |
2014.10.28 |
申请人 |
SHOWA CORPORATION |
发明人 |
TSUTSUI, HAYATO;HORIE, SHINYA;SADAKATA, KAZUHIKO;UEKI, TAKESHI |
分类号 |
F04B53/10;B63H20/10;B66F3/25;B66F3/42;F04B9/10;F15B15/14 |
主分类号 |
F04B53/10 |
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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