| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an oxygen enricher capable of extending the life of an adsorbing agent in the oxygen enricher by a simple structure. <P>SOLUTION: In a step 110, whether it is the timing to switch three-way selector valves 7 and 9 is determined. In a step 120, an electromagnetic switching valve 37 is turned on and the channel 35 thereof is blocked. In a step 130, whether the oxygen enricher 1 was operated in one cycle or not is determined. In a step 140, a compressor 5 is stopped if the oxygen enricher is operated in one cycle. In a step 150, the opened state of an equalizer valve 19 is kept longer than usual. In a step 160, the electromagnetic switching valve 37 is turned off and the channel 35 is opened to stop the whole operation. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
