Dual control valve suitable for high pressure fluids

Details Dual control valve suitable for high pressure fluids Dual control valve suitable for high pressure fluids

1990-02-05

1990-10-23

Hepperle, Stephen M.

Fluid handling

Systems

With pump

137569, 137595, 137607, F16K 1118

Patent

active

049644343

ABSTRACT:
The valve, preferably a dual control valve suitable for high pressure use, has a housing (2) formed with parallel bores in which rotatable valve elements (3,4) are located. The rotatable valve elements are each formed with a blind bore (22,23) coaxial therewith, and defining between an outer surface of the valve element and the blind bore a valve sleeve which communicates via lateral cut-outs (38,39) with inlets (11,12) to the blind bores. Valve sleeve portions (47,46) are left adjacent the cut-outs. The valve housing (2) is formed with outlet openings which can be exposed upon rotation of the valve elements to the remaining valve sleeve portions or to the cut-outs, respectively, to provide, selectively, CLOSED or OPEN positions of the respective valve elements. The housing and the valve elements are made of metal, the valve elements being fitted in the bore with slight amount of play. Pressure applied by a pressure fluid to the inside of the blind bores presses the respective valve sleeve portion against the outlet opening when it is rotated in CLOSED position. The valve elements (3,4) are coupled together for conjoint movement by gears (7,8,9), operated by a hand wheel (5).

REFERENCES:
patent: 313549 (1985-03-01), Stebbins
patent: 3166097 (1965-01-01), Hinderer et al.
patent: 3529621 (1970-09-01), Christiansen
patent: 3543790 (1970-12-01), Paige
patent: 3872887 (1975-03-01), Wohlrab
patent: 3905582 (1975-09-01), Fiorentini

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