초록

A machine for concentrating the oxygen in air for medical purposes utilizing any pressure swing adsorption (PSA) technique and comprising a combination of features to provide a light weight, reliable and compact device, especially suited for home use.

대표청구항 ▼

A machine for separating a constituent gas out of air using pressure swing adsorption, said machine including air compressor means, at least one vessel containing a bed of adsorbent material, said adsorbent material preferentially adsorbing at least one of the constituent gases in the air, a plurali

A machine for separating a constituent gas out of air using pressure swing adsorption, said machine including air compressor means, at least one vessel containing a bed of adsorbent material, said adsorbent material preferentially adsorbing at least one of the constituent gases in the air, a plurality of solenoid valves to control gas flows into and out of said at least one vessel, all of said plurality of solenoid valves being normally closed (no flow), control means for operating said solenoid valves in a cyclical manner to achieve alternate adsorption of said at least one constituent gas in and purging of said at least one constituent gas out of said at least one bed of adsorbent material according to a pressure swing adsorption technique, an unloading solenoid valve operatively cooperative with said compressor means, and said control means comprising means for electrically operating said unloading solenoid valve for dumping the compressor means air output until the pressure swing adsorption system is prepared to operate.