发明名称 |
PUMP APPARATUS AND HYDRAULIC ACTUATOR |
摘要 |
A pump apparatus includes: a pump that ejects a hydraulic fluid; and a selector valve that switches a direction of a flow of the hydraulic fluid to be supplied to one of a first chamber and a second chamber into which a cylinder apparatus is internally partitioned by a piston, the first chamber extending during a stroke of the piston for extending the cylinder apparatus, and the second chamber extending during a stroke of the piston for shortening the cylinder apparatus, and the selective valve has, at a channel connected to the second chamber, an orifice that is narrower than a channel connected to the first chamber. |
申请公布号 |
CA2864492(A1) |
申请公布日期 |
2015.09.25 |
申请号 |
CA20142864492 |
申请日期 |
2014.09.23 |
申请人 |
SHOWA CORPORATION |
发明人 |
TSUTSUI, HAYATO;SADAKATA, KAZUHIKO;KAGAWA, ATSUSHI |
分类号 |
F15B15/14;B63H20/10;B66F3/25;B66F3/42 |
主分类号 |
F15B15/14 |
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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