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US 9,011,111 B2Granted
Mud pump
OwnerGerald Leskoinventor
Life of this patent
Estimating the term…
Abstract
A mud pump is provided that includes a pump shaft having substantially circular eccentric lobes. Each lobe is rotatably mounted in a connecting rod that, in turn, moves a slide in a horizontal and linearly manner. A piston rod is operatively couples a pump module to one or both sides of each slide frame and a pump module. As the pump shaft turns, each lobe causes the slide to move side to side. As the slide moves side to side, each piston rod operates a pump module whose outputs can be coupled to a common manifold.
Claims28
A mud pump, comprising:
- a frame;
- at least one pump module disposed on the frame, the at least one pump module comprising an inlet port and an outlet port;
- a pump shaft rotatably disposed in the frame for receiving rotational power from a motor, the pump shaft having at least one substantially circular eccentric lobe disposed thereon, the centre of the at least one eccentric lobe displaced or offset from the longitudinal axis of the pump shaft;
- at least one slide disposed in the frame, the at least one slide operatively configured to move linearly side-to-side within the frame, the at least one slide further comprising a pair of substantially parallel spaced-apart sidewalls;
- at least one piston rod assembly operatively coupling the at least one slide to the at least one pump module;
- and
- a connecting rod comprising first and second ends operatively coupling the pump shaft to the at least one slide, the connecting rod disposed between the sidewalls of the at least one slide such that the connecting rod is pivotable relative to the sidewalls, the first end rotatably disposed on the at least one eccentric lobe, the second end rotatably pinned to both sidewalls of the at least one slide whereby rotation of the pump shaft causes the slide to move side-to-side that, in turn, causes the at least one piston rod assembly to operate the at least one pump module.
4 more elements
A mud pump, comprising:
- a platform;
- a lattice frame disposed on the platform;
- at least one pump module disposed on the frame, the at least one pump module comprising an inlet port and an outlet port;
- a pump shaft rotatably disposed in the frame for receiving rotational power, the pump shaft having at least one substantially circular eccentric lobe disposed thereon, the centre of the at least one eccentric lobe displaced or offset from the longitudinal axis of the pump shaft;
- a motor operatively coupled to the pump shaft, the motor disposed on the platform;
- at least one slide disposed in the frame, the at least one slide operatively configured to move linearly side-to-side within the frame, the at least one slide further comprising a pair of substantially parallel spaced-apart sidewalls;
- at least one piston rod assembly operatively coupling the at least one slide to the at least one pump module;
- and
- a connecting rod comprising first and second ends operatively coupling the pump shaft to the at least one slide, the connecting rod disposed between the sidewalls of the at least one slide such that the connecting rod is pivotable relative to the sidewalls, the first end rotatably disposed on the at least one eccentric lobe, the second end rotatably pinned to both sidewalls of the at least one slide whereby rotation of the pump shaft causes the slide to move side-to-side that, in turn, causes the at least one piston rod assembly to operate the at least one pump module.
6 more elements
Dependencies are inferred from the claim text.