发明名称 |
POSITIVE-DISPLACEMENT PUMP ASSEMBLY |
摘要 |
FIELD: engines and pumps. ^ SUBSTANCE: proposed pump assembly is designed to be used in oil, gas and other industries for operation in IN-OUT mode at constant drive motor shaft RPM. The assembly incorporates a positive displacement driven pump, a bypass line connecting intake and discharge lines comprising a controlled shut-off valve. A gas-fluid discharge line is connected to the said bypass line, the aforesaid pump assembly job-sequence control unit. The output of the aforesaid unit is connected to the pump drive, its other output being connected to the bypass line controlled shut-off valve. The proposed assembly comprises also a fluid availability pickup connected to appropriate inputs of the aforesaid control unit and arranged in the intake line and additional controlled shut-off valves connected to appropriate inputs of the aforesaid control unit. One of the said additional valves is arranged in the gas-fluid discharge line, the other one being connected to the discharge line behind the bypass connection point. All aforesaid controlled shut-off valves shut off pumped fluid flow gradually. ^ EFFECT: ruling out hydraulic shocks in lines and pump components. ^ 2 dwg, 3 tbl |
申请公布号 |
RU2341688(C1) |
申请公布日期 |
2008.12.20 |
申请号 |
RU20070125541 |
申请日期 |
2007.07.06 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "25 GOSUDARSTVENNYJ NAUCHNO-ISSLEDOVATEL'SKIJ INSTITUT MINISTERSTVA OBORONY ROSSIJSKOJ FEDERATSII (PO PRIMENENIJU TOPLIV, MASEL, SMAZOK I SPETSIAL'NYKH ZHIDKOSTEJ-GOSNII PO KHIMMOTOLOGII)" |
发明人 |
VOLKOV OLEG EVGEN'EVICH;KUZ'MIN SERGEJ ANATOL'EVICH;RYBAKOV JURIJ NIKOLAEVICH;KOVALENKO VIKTOR GRIGOR'EVICH |
分类号 |
F04C11/00;F04C14/00 |
主分类号 |
F04C11/00 |
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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