Hydraulically powered triplex pump and control system therefor

Patent · Tue Nov 12 04:00:00 EST 1974

OSTI ID:5111706

Cole, C W

A hydraulically powered triplex pump is described which has at least 3 pumping units, each operable in a cycle including suction, precompression, and discharge phases. Simultaneous performance of these functions results in a substantially constant pressure and flow of both the pumped fluid and the power fluid. Separate power and cycle control circuits, which may employ different fluids, are provided. Control valve assemblies are operated by the control circuit fluid to condition power circuit flow for various phases of the pumping cycle. Precompression valves, a fill valve, and a dump valve are operated by the control circuit to provide additional conditioning of power circuit flow to provide the precompression phase and to correct variations in pumping unit stroke length. (3 claims)

• Assignee: Halliburton Co.
• Patent Number(s): US 3847511
• OSTI ID: 5111706
• Country of Publication: United States
• Language: English

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