发明名称 |
LOW PERMEATION HYDRAULIC ACCUMULATOR |
摘要 |
A hydraulic accumulator (20) includes a rigid tank (27) containing a flexible but non-elastic bladder (21) formed of a metal foil and separating the interior of the tank into a gas space and a liquid space. The gas and liquid spaces respectively communicate with exterior sources of gas and liquid through fixtures (22,24) provided on the accumulator tank. One of the fixtures (24) is provided with an anti-extrusion valve (25) to prevent the bladder from being forced out through the fixture. In one preferred embodiment the bladder is a bellows. in another preferred embodiment the accumulator tank is provided with a vent in communication with the liquid space within the tank to allow for venting of any gas separating from the liquid and accumulating within the liquid space.
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申请公布号 |
WO03054437(B1) |
申请公布日期 |
2003.10.30 |
申请号 |
WO2002US36435 |
申请日期 |
2002.11.13 |
申请人 |
U.S. ENVIRONMENTAL PROTECTION AGENCY |
发明人 |
GRAY, CHARLES, L., JR. |
分类号 |
F16L55/053;(IPC1-7):F16L55/04 |
主分类号 |
F16L55/053 |
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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