Pumps – Motor driven – Fluid motor
Patent
1986-04-17
1988-05-31
Smith, Leonard E.
Pumps
Motor driven
Fluid motor
91275, F04B 3500
Patent
active
047477580
ABSTRACT:
A fluid pressure-intensifying apparatus of the double-acting type has an elongated cylindrical housing that encloses the low pressure and high pressure chambers and compressively position and restrains the elements that make up the low and high pressure chambers under operating conditions. Hydraulic working fluid 4-way control valve solenoids are actuated by an actuating piston assembly mounted in fluid communication with the low pressure working fluid chamber.
REFERENCES:
patent: 2949098 (1960-08-01), Flick
patent: 3070023 (1962-12-01), Glasgow
patent: 3382770 (1968-05-01), Berninger et al.
patent: 3771912 (1973-11-01), Conlee
patent: 4382750 (1983-05-01), Robertson et al.
Cross, Jr. Harry M.
Smith Leonard E.
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