发明名称 |
Selectively pressurized tank for hydraulic fluid |
摘要 |
A tank for oil or other hydraulic fluid is kept under a few pounds of air pressure during operation to keep air from being drawn into the fluid and to aid its flow to the pump. The pressure is provided dependably and quickly by a small air pump driven whenever the hydraulic pump is driven. A bleed-off discharge causes prompt dissipation of the pressure on shutdown so as not to cause oil leakage while the associated hydraulic pump is idle. The hydraulic level is below the pump shaft level so there will be no leakage by gravity.
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申请公布号 |
US4089621(A) |
申请公布日期 |
1978.05.16 |
申请号 |
US19760715412 |
申请日期 |
1976.08.18 |
申请人 |
PETTIBONE CORPORATION |
发明人 |
BROWN, WILBURN KELLY |
分类号 |
F04B23/04;F04F1/06;F15B1/26;F15B21/04;(IPC1-7):F04F1/06 |
主分类号 |
F04B23/04 |
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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