Pumps – Condition responsive control of pump drive motor – By controlling drive motor motive fluid
Patent
1988-04-25
1989-12-26
Smith, Leonard E.
Pumps
Condition responsive control of pump drive motor
By controlling drive motor motive fluid
F04B 1700
Patent
active
048894729
ABSTRACT:
An air operated hydraulic fluid pump having an air pressure operated motor drivingly connected to a hydraulic fluid pump to drive the hydraulic fluid pump, and an airflow control valve controlling the supply of air from an air pressure source to the air pressure operated motor, the airflow control valve causing an increase in the supply of air to the air valve pressure operated motor in proportion to increase in the hydraulic fluid pressure generated by the hydraulic fluid pump.
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Decker Arnold F.
Silke Timothy L.
Smith Leonard E.
Templeton, Kenly & Co.
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