Submersible well pump

Details Submersible well pump Submersible well pump

1981-09-21

1983-11-29

Freeh, William L.

Pumps

Motor driven

Electric or magnetic motor

417519, F04B 3504

Patent

active

044178603

ABSTRACT:
Disclosed is a displacement pump especially suited for use in very small well bores. The pump includes a piston working in a cylinder, driven by a rotating cam shaft having closed loop cams for effecting reciprocation of the piston. The rotating cam shaft carries spool valves for positive control of liquid flow into and out of the pumping chambers. Also disclosed is a transmission mechanism especially suitable for use in reducing the speed of an electric motor power source to a level suitable for driving the cam shaft. The pump includes a small diameter high speed electric motor, on which is mounted the transmission mechanism, which in turn carries the pumping mechanism. An electrical power conduit runs through the pumping mechanism and transmission mechanism to the motor.

REFERENCES:
patent: 165027 (1875-06-01), Riley
patent: 642765 (1900-02-01), Thomson
patent: 1891771 (1932-12-01), Mendenhall et al.
patent: 2722892 (1955-11-01), French
patent: 3136255 (1964-06-01), Von Plato
patent: 3167967 (1965-02-01), Silberger
patent: 3677665 (1972-07-01), Corkill
patent: 3788157 (1974-01-01), Carlson et al.

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