Pressured fluid supply system

Details Pressured fluid supply system Pressured fluid supply system

1977-07-15

1980-03-18

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Utilizing lubricant, starter motor, cooling fluid, or fluid...

60411, 60413, 60418, 417401, F15B 102

Patent

active

041932641

ABSTRACT:
A vacuum motor operatively connected to a slave cylinder operates same via pressure differential variations across a reciprocatable vacuum motor piston to pump working fluid from a reservoir to an accumulator through two one way valves. The pressure differential variation can be derived from gear changing of the vehicle, induced through a three way electromagnetic valve controlled by a circuit characterized by either an unstable multivibrator, a dual stable multivibrator, a thyristor or a self maintaining relay, or induced through a purely mechanically operated valve characterized by lost motion and snap action position maintain devices. A pressure relief valve may be provided which dumps excessive pressurized fluid in the accumulator and returns same to the reservoir.

REFERENCES:
patent: 1694279 (1928-12-01), Oishei
patent: 2463005 (1949-03-01), Ulrich
patent: 2622399 (1952-12-01), Babitch
patent: 2988890 (1961-06-01), Oishei et al.
patent: 3134304 (1964-05-01), Hager
patent: 3218978 (1965-11-01), Kalert
patent: 3482766 (1969-12-01), Rehfeld
patent: 3700359 (1972-10-01), Vanderjagt
patent: 3892283 (1975-07-01), Johnson

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