发明名称 |
SWING VANE TYPE PUMP ACTUATOR FOR PREVENTING FRETTING CORROSION |
摘要 |
Disclosed herein is an oscillating vane type pump actuator. The pump actuator of the present invention provides a method of preventing fretting corrosion from being caused on joined surfaces of elements. A cylinder (3c) has a comparatively low radial strength, and each of side covers (1c) and (2c) has a high radial strength. A cylindrical portion (1c-c), (2c-c) is provided on each side cover. Thus, when high pressure of work oil distorts the cylinder into a shape in which the cross-section of the cylinder becomes an ellipse-like shape, the cylindrical portions of the side covers act such that they are distorted in the same shape as that of the cylinder. Further, a passage that always communicates with a low-pressure side working chamber is formed in the contact surfaces between a fixed vane that is fixed to the cylinder and the side covers. |
申请公布号 |
KR20110116090(A) |
申请公布日期 |
2011.10.25 |
申请号 |
KR20110033138 |
申请日期 |
2011.04.11 |
申请人 |
KOREA OCEAN RESEARCH AND DEVELOPMENT INSTITUTE;WATABE TOMIJI |
发明人 |
WATABE TOMIJI;SHIN, SEUNG HO;HONG, KEY YONG |
分类号 |
F04C13/00;F04C15/00;F15B15/12 |
主分类号 |
F04C13/00 |
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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