HIGH-PRESSURE POSITIVE DISPLACEMENT PLUNGER PUMP
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United States of America Patent
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Issued Date -
Jul 11, 2019
app pub date -
Jan 8, 2019
filing date -
Jan 9, 2018
priority date (Note) -
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Abstract
A drive system for a pump includes a housing defining an internal pressure chamber, a working fluid disposed within and charging the internal pressure chamber, and a reciprocating member disposed within the internal pressure chamber. A fluid displacement component has first and second surfaces. The first surface is configured to contact the working fluid and the second surface is configured to contact the process fluid. The area of the first surface is greater than the area of the second surface. A pull extends between and connects the reciprocating member and the fluid displacement component. The pull mechanically transfers a pulling force from the reciprocating member to the fluid displacement component.
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