发明名称 |
Super-low net positive suction head cryogenic reciprocating pump |
摘要 |
A novel reciprocating pump for cryogenic fluids having a super-low NPSH requirement. The pump has a spring-loaded intake valve made of magnetic material and a reciprocating piston having a permanent magnet at its head end. The intake valve is positioned such that when the piston is at or near the top of its stroke, the magnet will tend to pull said intake valve into an open position. The pump also preferably includes a mechanical spring energized (MSE) seal on the upper end of the piston.
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申请公布号 |
US5810570(A) |
申请公布日期 |
1998.09.22 |
申请号 |
US19970778952 |
申请日期 |
1997.01.06 |
申请人 |
CHEMICAL SEAL & PACKING, INC. |
发明人 |
NGUYEN, DAN DINH |
分类号 |
F04B15/06;F04B53/10;F04B53/14;(IPC1-7):F04B39/08 |
主分类号 |
F04B15/06 |
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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