Portable PSA oxygen generator

Details Portable PSA oxygen generator Portable PSA oxygen generator

1997-11-07

1999-04-13

Spitzer, Robert

Gas separation: apparatus

Solid sorbent apparatus

With control means responsive to sensed condition

96117, 96144, B01D 53053

Patent

active

058939440

ABSTRACT:
A portable PSA oxygen generator that includes first and second filters for filtering inside air; a fan motor for passing through the air; a third filter for filtering the air intaken through the fan motor; a compressor assembly for compressing the air supplied; an oxygen concentrator for adding/eliminating oxygen to/from the compressed air supplied from the compressor assembly to generate the highly concentrated oxygen; an oxygen tank for storing the oxygen generated in the oxygen concentrator; an oxygen filter for filtering oxygen exhausted; a nitrogen filter for filtering and exhausting nitrogen; a pressure sensor installed inside the oxygen tank and outputting a signal indicating an internal pressure state; a failure alarming circuit made of buzzer connected with the pressure sensor in series, and a light emitting diode; a timer for limiting an operation time; an oxygen sensor for estimating the concentration of the oxygen exhausted through the oxygen filter; a control knob for controlling the concentration of the oxygen; a micro computer connected with the timer, the oxygen sensor and the control knob; and a driving circuit for switching with a signal generated in the micro computer and outputting a control signal to the fan motor which absorbs air.

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