Hydrualic pressure amplifier

Details Hydrualic pressure amplifier Hydrualic pressure amplifier

1986-01-09

1987-04-21

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

91297, 91320, F04B 910

Patent

active

046592946

ABSTRACT:
A hydraulic pressure amplifier, e.g. for generating high water pressure for rock cutting and the like, in which a differentially displaced piston drives plungers alternately to pressurize the water and is driven by a primary fluid under the exclusively of a hydraulically displaceable pilot valve. The valve member is connected by a single pilot passage to the cylinder of the piston for switching between its positions.

REFERENCES:
patent: 2300110 (1942-10-01), De Hoog
patent: 2789510 (1957-04-01), Meynig
patent: 2826149 (1958-03-01), Wrigley
patent: 2864313 (1958-12-01), Dawson
patent: 3655300 (1972-04-01), Davis
patent: 3776665 (1973-12-01), Dalton
patent: 3790310 (1974-02-01), Whelan
patent: 4102609 (1978-07-01), Wood
patent: 4281587 (1981-08-01), Garcia-Crespo

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