发明名称 |
SHORT LENGTH PUMP HAVING BRINE RESISTANT SEAL AND ROTATING WRIST PIN AND RELATED METHODS |
摘要 |
<p>Pumps and plunger assemblies are provided. An exemplary pump can have or contain a cylinder mounted in a pump housing, a plunger assembly including a crosshead, a plunger, a stationary bushing having substantial portions fixedly mounted within a laterally extending bore of the crosshead, and a non-stationary pivotally rotating wrist pin mounted within the bushing. The pump can also include a power end seal assembly including a seal housing extending at least partially through an aperture in the sealed fluid end-facing side of the power end of the pump, a power end seal disposed therein in sealing contact with the power end section of the plunger and a splashguard assembly.</p> |
申请公布号 |
EP2659140(A2) |
申请公布日期 |
2013.11.06 |
申请号 |
EP20110854439 |
申请日期 |
2011.12.29 |
申请人 |
S.P.M. FLOW CONTROL, INC. |
发明人 |
CHINTHAN, GROMICHO;DILLE, MARK |
分类号 |
F04B39/00;E21B43/12;F04B47/00 |
主分类号 |
F04B39/00 |
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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