System and method for pump with deformable bearing surface
First Claim
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1. A pump system comprising:
- a pumping chamber comprising a wall forming a loop;
a pump inlet in fluid communication with the pumping chamber;
a pump outlet in fluid communication with the pumping chamber; and
a drive piston disposed within the pumping chamber, wherein;
the drive piston comprises a leading face and a trailing face;
the drive piston comprises a deformable surface extending between the leading face and the trailing face; and
the deformable surface is proximal to the wall of the pumping chamber.
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Abstract
Systems and methods for pumping fluid comprising a pumping chamber, a pump inlet, a pump outlet, a valving mechanism, and a drive piston or pumping chamber wall including a deformable surface configured to provide elastohydrodynamic lubrication during operation.
33 Citations
20 Claims
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1. A pump system comprising:
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a pumping chamber comprising a wall forming a loop; a pump inlet in fluid communication with the pumping chamber; a pump outlet in fluid communication with the pumping chamber; and a drive piston disposed within the pumping chamber, wherein; the drive piston comprises a leading face and a trailing face; the drive piston comprises a deformable surface extending between the leading face and the trailing face; and the deformable surface is proximal to the wall of the pumping chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of pumping fluid, the method comprising:
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providing a pump comprising a pumping chamber, a pump inlet, and a pump outlet, wherein the pumping chamber forms a loop and the pump inlet and the pump outlet are in fluid communication with the pumping chamber; providing fluid in the pumping chamber; providing a drive piston disposed within the pumping chamber, wherein the drive piston comprises a deformable surface proximal to a wall of the pumping chamber; and moving the drive piston within the pumping chamber, wherein the deformable surface is deformed away from the wall of the pumping chamber as the drive piston moves within the pumping chamber. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A pump system comprising:
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a pumping chamber comprising a wall forming a loop, wherein the wall of the pumping chamber comprises a deformable surface; a pump inlet in fluid communication with the pumping chamber; a pump outlet in fluid communication with the pumping chamber; and a drive piston disposed within the pumping chamber. - View Dependent Claims (19, 20)
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Specification