Pressure modulator valve

Details Pressure modulator valve Pressure modulator valve

1984-10-22

1985-10-29

Cohan, Alan

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

91 29, 91 31, 91447, F15B 1116

Patent

active

045495645

ABSTRACT:
A modulation valve for controlling flow to a fluid consuming device which valve provides a gradual buildup of fluid pressure and during at least part of the buildup restricts flow to the consuming unit. The valve includes a slide movable by a spring on one end and fluid pressure on the other. The slide has a blind bore on the pressure end which is adapted to move over a projection having a restricted passage therethrough. In at least one position of the slide, fluid flow to the consuming unit is through the projection and through a passage in the slide to the consuming unit. In another position of the slide, fluid flow is through the blind bore and through the passage in the slide to the consuming unit.

REFERENCES:
patent: 2721640 (1955-10-01), DeFeo
patent: 3116607 (1964-01-01), Gratzmuller
patent: 3848620 (1974-11-01), Fisher
patent: 3946760 (1976-03-01), Murakami
patent: 4046892 (1977-12-01), Brisko

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