Pumps – Motor driven – Fluid motor
Patent
1992-04-22
1993-09-14
Gluck, Richard E.
Pumps
Motor driven
Fluid motor
210134, F04B 2100, B01D 6108
Patent
active
052443612
ABSTRACT:
A pump connectible to fluid under pressure comprising a housing having a cavity and a differential area piston reciprocable in the cavity on pumping and reset strokes and dividing the cavity into an inlet chamber, an outlet chamber and a reversing chamber. The housing has an inlet port communicating with the inlet chamber and connectible to the fluid under pressure, a water port communicating with the outlet chamber and a reversing port communicating with the reversing chamber. The piston has a passage leading from the inlet chamber to the outlet chamber. A first valve opens and closes the passage and a second valve is provided in the housing. A cam assembly opens and closes the first and second valves as a function of the position of the piston in the cavity.
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Gluck Richard E.
Peterson Gordon L.
Product Research And Development
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