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公开(公告)号:US4820135A
公开(公告)日:1989-04-11
申请号:US12919
申请日:1987-02-09
Applicant: Peter E. Simmons
Inventor: Peter E. Simmons
CPC classification number: E21B43/129 , F01C13/04 , F04C11/003
Abstract: A fluid driven pumping apparatus comprises a housing containing a twin rotor screw type positive displacement motor and a twin rotor screw type positive displacement pump. The screw rotors of said pump and motor are mounted on a pair of common shafts.
Abstract translation: 液体驱动泵送装置包括容纳双转子螺旋式正位移电动机和双转子螺杆式正排量泵的壳体。 所述泵和马达的螺杆转子安装在一对公共轴上。