Surface Combustion, Inc.

Jerry P Jason

Garry W Barbee

Michael J Huber

A drying system is disclosed for drying wet gases, typically produced by a gas generator to dew points less than 32.degree. F. The system uses a refrigeration cycle having a single compressor to dry the wet gas in a first evaporator while simultaneously defrosting the ice buildup on a second evaporator. The cycle then switches from the first evaporator to the second evaporator after the second evaporator is defrosted. The switching is preceded by a changeover phase in which cooled refrigerant is pulsed to the defrosted evaporator and both evaporators go on line for a short time before the system phase change occurs thus assuring control of the dried gas temperature while avoiding shock to the refrigeration system.

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Maumee, OH, United States of America

Jerry P Jason