Pressure differential control valve for compressed air system

Details Pressure differential control valve for compressed air system Pressure differential control valve for compressed air system

1994-04-28

1995-10-17

Spitzer, Robert

Gas separation: apparatus

Solid sorbent apparatus

With control means responsive to sensed condition

96116, 96144, B01D 5304, B01D 5326

Patent

active

054586763

ABSTRACT:
A compressed air system includes an air dryer which dries compressed air before the compressed air is communicated to a reservoir. The air dryer includes a desiccant which is purged by using air stored in the reservoir. A pressure reference purge control valve is installed between the air dryer and the reservoir and includes a housing which defines a pressure reference volume. A pressure which is a function of the highest pressure level communicated to the reservoir is trapped in the reference volume. The valve permits purging only until a pressure is reached which is a predetermined pressure drop below the reference pressure level, whereupon purging is terminated.

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