E-1 twin tower air dryer for an air compressor unit

Details E-1 twin tower air dryer for an air compressor unit E-1 twin tower air dryer for an air compressor unit

1997-11-26

1999-05-11

Bennett, Henry

Drying and gas or vapor contact with solids

Apparatus

With automatic control

34566, 34 80, F26B19/00

Patent

active

059014644

ABSTRACT:
A twin tower air drying system for cleaning and drying a stream of unpurified pressurized air including a centrifugal separator having a baffle horizontally disposed therein to generally separate the centrifugal chamber into an upper sub-chamber and a lower sub-chamber; a pair of cavities each containing desiccant media and a purge tube with a flapper valve thereover to close and restrict flow of air through the purge tube when air is flowing upwardly through the cavity, and to open and promote air flow through the purge tube when air is flowing downwardly through the cavity; a pair of two-way control valves to either deliver a stream of air from the centrifugal separator to a cavity or to open a cavity to atmosphere; a timer control for alternately and periodically altering the condition of the two-way control valves such that when one is delivering air to a cavity, the other is open to atmosphere; a shuttle valve for admitting an output percentage of air emerging from either of the cavities to a storage chamber, and to by-pass a purge percentage of the air into the other cavity from which air is not emerging.

REFERENCES:
patent: 3592563 (1971-07-01), Glass et al.
patent: 3877904 (1975-04-01), Lowrie
patent: 4149861 (1979-04-01), Sogo et al.
patent: 4247311 (1981-01-01), Seibert et al.
patent: 4525183 (1985-06-01), Cordes et al.
patent: 4853010 (1989-08-01), Spence et al.
patent: 5604991 (1997-02-01), Castle et al.
patent: 5662727 (1997-09-01), Castle et al.
patent: 5685896 (1997-11-01), Castle et al.

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