Oxygen generator

Details Oxygen generator Oxygen generator

1998-04-28

1999-07-27

Thornton, Krisanne

Chemical apparatus and process disinfecting, deodorizing, preser

For deodorizing of, or chemical purification of, or...

422 4, 422122, 422212, 422213, 422305, 95 98, 95105, 95130, 96130, 96143, B01D 5304

Patent

active

059286105

ABSTRACT:
An improved oxygen generator (20) includes an air compressor (21) having a pressure port (22) and a suction port (23) and being selectively operable to produce a flow of air from the suction port to the pressure port; a molecular sieve (30) having an inlet communicating with the compressor and having an outlet, the sieve being adapted to adsorb nitrogen from a flow of gas passing therethrough; a storage tank (33) communicating with the sieve outlet and adapted to store oxygen-rich gas passing through the sieve; and a control valve (24) operatively arranged between the compressor and the sieve and being selectively movable between a first position in which air flows from the compressor suction port through the sieve to the storage tank and a second position in which oxygen-rich gas flows from the storage tank through the sieve and control valve to desorb nitrogen in the sieve. In use, the inventive apparatus performs a method which includes the steps of: selectively operating the control valve to permit a forward flow of gas from the compressor suction port to the storage tank through the sieve to adsorb nitrogen from the gas and to accumulate oxygen-rich gas in the storage tank; and alternatively operating the control valve to permit a reverse flow of oxygen-rich gas from the storage tank to the compressor pressure port to desorb nitrogen from the molecular sieve.

REFERENCES:
patent: 4552571 (1985-11-01), Dechene
patent: 4636226 (1987-01-01), Canfora
patent: 4698075 (1987-10-01), Dechene
patent: 4869733 (1989-09-01), Stanford

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