Digital valve

Details Digital valve Digital valve

1989-03-30

1989-10-31

Hepperle, Stephen M.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

137884, G05D 703

Patent

active

048770566

ABSTRACT:
A "digital" valve comprises a plurality of shutters (46) connected in parallel between an inlet duct (2) and an outlet duct (42) of the digital valve, with each shutter (46) being constituted by an elementary spherical plug valve (50) capable of transmitting an individual flow rate. These shutters are distributed angularly around the axis of the digital valve and each of them is incorporated in a module (24) received in a standard seating (14, 18), thereby making it easy to remove any of the modules. The invention is particularly applicable to rapidly changing over between different flow rates of a liquid or a gas under the control of a digital electronic system (70).

REFERENCES:
patent: 3670768 (1972-06-01), Griswold
patent: 3746041 (1973-07-01), Friedland
patent: 3937248 (1976-02-01), Hutton
patent: 3942553 (1976-03-01), Gallatin
patent: 4019533 (1977-04-01), Jerde et al.
patent: 4223811 (1980-09-01), Czegledi
patent: 4708158 (1987-11-01), Akamatsu

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