F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
138/45.1
F16H 39/02 (2006.01) E21B 43/12 (2006.01) F04B 47/02 (2006.01) F16H 61/42 (2006.01)
Patent
CA 1169333
OIL WELL PUMP DRIVES AND SERVO CONTROL MECHANISMS THEREFOR ABSTRACT OF THE INVENTION A hydrostatic transmission with a variable dis- placement pump and a fixed displacement axial motor is operatively connected to a walking beam type oil well pump. Included is a vibration monitor to sense the vi- brations in the sucker rod thus indicating oil starva- tion at the pump so that electric controls can operate to modify the speed of the up and down strokes of the sucker rod by means of a servo connection to the varia- ble speed pump portion of the transmission. This means that the operation of the sucker rod can be controlled so that the output of the well pump can coincide with and not exceed the inflow rate from the well to the pump. The motor can be run in either direction with different and variable speeds for the up and down movement of the sucker rod.
384960
Ade & Company
Hypower Systems Inc.
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