发明名称 |
RAILCAR DAMPING DEVICE |
摘要 |
A railcar damping device includes: a tank storing a liquid; a first opening/closing valve provided in a first passage connecting a rod side chamber to a piston side chamber, which are defined by a piston, to be capable of opening and closing the first passage; a second opening/closing valve provided in a second passage connecting the piston side chamber to the tank to be capable of opening and closing the second passage; and a pump that is driven to rotate at a predetermined normal rotation speed in order to supply the liquid from the tank to the rod side chamber, wherein a rotation speed of the pump is reduced when a thrust command value is smaller than a normal lower limit value, which is a lower limit value of a thrust that can be generated by the actuator when the pump is rotated at the normal rotation speed. |
申请公布号 |
EP2722249(A1) |
申请公布日期 |
2014.04.23 |
申请号 |
EP20120802806 |
申请日期 |
2012.06.19 |
申请人 |
KAYABA INDUSTRY CO., LTD. |
发明人 |
OGAWA, TAKAYUKI;AOKI, JUN;UCHIDA, MASARU |
分类号 |
B61F5/24;F15B21/00;F15B21/04;F16F15/02 |
主分类号 |
B61F5/24 |
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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