Pumps – Condition responsive control of pump drive motor – Single motor control element responsive to means sensing...
Patent
1987-04-29
1990-11-27
Smith, Leonard E.
Pumps
Condition responsive control of pump drive motor
Single motor control element responsive to means sensing...
417 53, F04B 4702
Patent
active
049732269
ABSTRACT:
A method of maintaining a substantially constant amount of filling of a liquid well pump actuated by a polished rod which is reciprocated by a prime mover. The load and position of the polished rod is periodically measured to determine the amount of filling of the pump. The change in the amount of filling of the pump of one pumping cycle relative to a previous pumping cycle is compared and the speed of actuation of the pump is varied as a function of the change in the amount of filling of the pump to maintain a substantially constant amount of filling of the pump. The pump is continuously actuated but the speed is varied for preventing the well from being pumped dry.
REFERENCES:
patent: 3838597 (1974-10-01), Montgomery et al.
patent: 3953777 (1976-04-01), McKee
patent: 4145161 (1979-03-01), Skinner
patent: 4286925 (1981-09-01), Standish
patent: 4307395 (1981-12-01), Standish
patent: 4390321 (1983-06-01), Langlois
patent: 4487061 (1984-12-01), McTamaney et al.
patent: 4490094 (1984-12-01), Gibbs
patent: 4541274 (1985-09-01), Purcupile
patent: 4594665 (1986-06-01), Chandra et al.
patent: 4661751 (1987-04-01), Werner
Delta-X Corporation
Smith Leonard E.
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