发明名称 |
Zero emissions reciprocating pump |
摘要 |
<p>A sealing system for a pump having a plunger includes a housing having an internal chamber adapted to receive a portion of the plunger. Primary and secondary seals are located within the internal chamber and adapted to sealingly engage the plunger. The primary seal communicates with the fluid being pumped. A barrier fluid chamber contains a barrier fluid in contact with the primary seal and the secondary seal. A pressure referencing device has an inlet port in communication with the pumped fluid and an outlet port providing fluid at a pressure magnitude equal to a peak pressure of the pumped fluid. A pressurizing device is in communication with the fluid at the peak pressure and the barrier fluid to maintain the barrier fluid pressure at a magnitude greater than the peak pressure of the pumped fluid such that the pumped fluid is restricted from leaking past the primary seal.</p> |
申请公布号 |
EP1975409(A2) |
申请公布日期 |
2008.10.01 |
申请号 |
EP20080102965 |
申请日期 |
2008.03.27 |
申请人 |
UNION PUMP COMPANY |
发明人 |
TACKETT, HERBERT H., JR.;CRIPE, JAMES A.;DYSON, GARY;THOMPSON, PETER |
分类号 |
F04B53/14;F04B53/16;F16J15/18 |
主分类号 |
F04B53/14 |
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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