Walking beam pump having adjustable crank pin
OwnerJames C. Alleninventor
Life of this patent
Estimating the term…
Abstract
Variable stroke pump apparatus includes a photovoltaic array for providing electrical current to motors, one of which provides for the pumping action of a walking beam, one of which provides for movement of a control unit which varies the length of stroke of the pumping apparatus from a minimum of zero to a maximum, and one of which operates a counterweight for moving the counterweight in response to the pumping load. The apparatus includes mechanical elements which adjust the length of the stroke of the pumping arm, and a control system which controls the length of the pumping stroke in response to the output of the photovoltaic array.
Claims27
Variable capacity pump apparatus having an upstroke and a downstroke, comprising, in combination:
- input electrical means;
- drive motor means powered by the input electrical means;
- bull gear means rotationally driven by the drive motor means;
- a pivoting shaft;
- walking beam means rigidly secured to the pivoting shaft and pivotally movable therewith and adapted to be connected to a pump for providing pumping strokes for pumping a liquid;
- link means rigidly connected to the pivoting shaft and movable to pivot the pivoting shaft;
- crank pin means, including a crank pin, secured to the bull gear means and connected to the link means to pivot the link means in response to rotation of the bull gear means, and the location of the crank pin defines a pivot arm for the link means, the pivoting shaft, and the walking beam means;
- and
- electrical controller means for varying the pumping capacity of the walking beam means in response to the input electrical means.
Variable stroke pump apparatus, comprising, in combination:
- output drive motor means;
- bull gear means driven by the output drive motor means and having an axis of rotation;
- a pivoting shaft;
- walking beam means rigidly secured to the pivoting shaft and pivotally movable therewith and adapted to be connected to a pump for providing pumping strokes for pumping a liquid;
- link means rigidly connected to the pivoting shaft and movable to pivot the pivoting shaft;
- crank pin means movable relative to the axis of rotation of the bull gear means and movably connected to the link means to pivot the link means in response to rotation of the bull gear means and movable relative to the link means for providing a variable pivot arm for pivoting the link means, the pivoting shaft, and the walking beam means;
- and
- controller means for moving the crank pin means toward and away from the axis of rotation of the bull gear means to vary the length of the pivot arm of the link means and the length of stroke of the walking beam means.
Dependencies are inferred from the claim text.