Pumps – Condition responsive control of pump drive motor – By controlling drive motor motive fluid
Patent
1981-02-10
1983-01-11
Camby, John J.
Pumps
Condition responsive control of pump drive motor
By controlling drive motor motive fluid
417267, 417397, F04B 4900, F04B 300, F04B 1700
Patent
active
043680089
ABSTRACT:
A double acting hydraulically driven gas compressor using a free floating piston the reciprocating action of which is being controlled by a valve system responsive to pressure peaks, generated in hydraulic system on piston reversal, the pressure level of those peaks being higher by a constant pressure differential than the discharge pressure of the gas compressor.
REFERENCES:
patent: 3707881 (1973-01-01), Neuhaus et al.
patent: 3776665 (1973-12-01), Dalton
patent: 4029440 (1977-06-01), Olsen
patent: 4213298 (1980-07-01), Milgram
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