发明名称 PUMPING UNIT MULTISPEED BIROTATORY DRIVE WITH STEP-BY-STEP SPEED CONTROL
摘要 FIELD: oil producing industry. SUBSTANCE: invention can be used to control oil producing from low-production wells. Proposed drive contains induction motor with control device made in form of unit of birotatory motors with common stator housing accommodating two stator windings and two rotors. Shaft of one of rotors is connected by clutch with induction motor, and shaft of pother rotor, with load. Clutch is provided with friction brake set into action by electromagnetic. EFFECT: provision of control f production rate. 1 tbl, 1 dwg
申请公布号 RU2229622(C1) 申请公布日期 2004.05.27
申请号 RU20020130153 申请日期 2002.11.11
申请人 发明人 IL'JASOV B.G.;SHAN'GIN E.S.
分类号 F04B47/02;E21B43/00 主分类号 F04B47/02
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