Energy efficient oxygen concentrator
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United States of America Patent
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Nov 4, 2008
Grant Date -
N/A
app pub date -
Oct 13, 2005
filing date -
Oct 21, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An energy efficient oxygen concentrator in which a compressor applies pressurized air to at least two gas separating elements which will pass a flow of oxygen while blocking a flow of nitrogen. The gas separating elements are alternately cycled between a gas separating mode for producing oxygen enriched gas and a purge mode for purging nitrogen from the elements. According to the invention, the speed of the cycle time is increased as the oxygen enriched gas flow requirement is decreased below the maximum concentrator output. The higher cycle speed reduces the maximum compressor pressure to reduce energy consumption.
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