Digital valve
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United States of America Patent
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-
Oct 31, 1989
Grant Date -
N/A
app pub date -
Mar 30, 1989
filing date -
Mar 31, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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).
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