Power plants – Pressure fluid source and motor – Pulsator
Patent
1976-03-29
1979-04-17
Schwadron, Martin P.
Power plants
Pressure fluid source and motor
Pulsator
60560, 60583, 60593, F15B 702
Patent
active
041493842
ABSTRACT:
A fluid pressure amplifier for intensifying fluid pressure, the amplifier comprising a housing including a hydraulic fluid reservoir therein. A first chamber includes a slave piston mounted for reciprocation therein and for abutting engagement with a workpiece. A hydraulic fluid path extends intermediate the reservoir and the first chamber and a second chamber lies in the path intermediate the first chamber and the reservoir and includes check means intermediate the first and second chambers. A third chamber includes a fluid intensifier piston having a head end and a tail end, the head end being mounted for reciprocation in the third chamber and the tail end being mounted for reciprocation in the second chamber, the head end of the piston having a larger diameter than the tail end. Gas admittance means admit a pressurized gas to a gas path which lies intermediate the gas admittance means and the reservoir. Means are disposed in the gas path to decrease the velocity of gas admitted to the reservoir while means are also disposed to apply gas pressure to the head end of the intensifier piston. The tail end of the intensifier piston is exposed to hydraulic pressure in the second chamber while the fluid intensifier piston is movable from a first position to a second position by gas pressure on the head end to thereby increase hydraulic pressure in the first chamber. Relief means are provided to effect a decrease of gas pressure upon the head end of the fluid intensifier piston when it reaches the second position so that the piston moves from the second back to the first position for a repeat of the cycle.
REFERENCES:
patent: 2547233 (1951-04-01), Seppmann
patent: 2601761 (1952-07-01), Fovron
patent: 3361036 (1968-01-01), Harvey
patent: 3426530 (1969-02-01), Georgelin
patent: 3507189 (1970-04-01), Beckett
patent: 3948051 (1976-04-01), Marshall
Dick William J.
Hershkovitz Abraham
Schwadron Martin P.
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