LUBRICATION SYSTEM FOR A PISTON PUMP
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United States of America Patent
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Issued Date -
Aug 19, 2021
app pub date -
Feb 13, 2020
filing date -
Feb 13, 2020
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Abstract
A piston assembly for a piston pump includes an actuator rod, a piston coupled to the actuator rod and configured to contact a radially-inner wall of a cylinder, and an piston support structure coupled to the actuator rod and configured to contact the radially-inner wall of the cylinder. A fluid channel extends through the actuator rod and the piston support structure, and the fluid channel is configured to deliver a lubricating fluid to an annular space positioned between the piston and the piston support structure along an axial axis of the piston assembly.
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