Patent ID: 7524365
Filing Date: 2009-04-28
Classification: B01D

Abstract:
1. An apparatus of an airflow channel module for oxygen concentrator, comprising: at least two molecular sieves; an air expelling unit; an air intake/expel module, with said molecular sieves and said air expelling unit on one side, further comprising at least an air expelling channel, at least two air intake channels, and an air supply channel, said air expelling channel being connected to said air expelling unit, said air intake channels being connected respectively to said molecular sieves, and said air supply channel being connected to an external air supply facility; and an automatic valve, located on the other side of said air intake/expel module, connected to said air intake channels, air expelling channel, and air supply channel of said air intake/expel module, for controlling said external sir supply facility supplying air to one said molecular sieve, while the other said molecular sieve expelling nitrogen.