Barbara M Korycka

US Patent:

54289637, Jul 4, 1995

Filed:

May 12, 1994

Appl. No.:

8/241554

Inventors:

Leszek S. Korycki - Scarborough, CA
Jorma J. Lehtovaara - Etobiocoke, CA
Barbara M. Korycka - Carrboro NC

International Classification:

B01D 800
F25J 308
F25D 1706
F25D 2100

US Classification:

62 93

Abstract:

A compressed air system to deliver dry and clean air whereby the compressed air supplied by the air compressor is passed through a primary circuit of a heat exchanger and a liquid separator where it is cooled down close to the freezing point of the water so that the majority of the water vapor in the air will condense. The condensate as well as majority of the oil in the air is removed from the air stream with a centrifugal action inside the liquid separator which consists of a precooling chamber, cooling lines, conical centrifugal separator section, vertical center cavity and exit passage. The superheated air leaving the liquid separator unit can be dried further by passing the air through the freezer dryer units where its temperature is lowered below the freezing point of the water so that the remaining water forms into ice crystals and will get attached to the inside walls of the freezer dryer. The returning air from the liquid separator is guided through the secondary circuit of the heat exchanger before it enters the air reservoir tank. The remaining oil particles as well as rust and dust in the air stream can be removed with an oil filter unit placed downstream from the storage tank.