| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an oxygen condenser provided with a compact and simple channel switch means. <P>SOLUTION: A pressure pulsation adsorption type oxygen concentration apparatus comprises an adsorbent bed filled up with an adsorbent capable of adsorbing selectively nitrogen rather than oxygen, an air supply means supplying air to the adsorbent bed, and the channel switch means to repeat the adsorbing process of supplying the air from the air supply means to the adsorbent bed to take out concentrated oxygen by a certain timing, and the desorbing process of pressure-reducing the adsorbent bed to reproduce the adsorbent. In the apparatus, the channel switch means is constituted by a plurality of mechanical valves, and is provided with an open-close switch of the mechanical valve convexly on the same circumference of the cylindrical inner wall and at the same time, a rotor provided with a roller moving along the cylindrical inner wall and a motor rotating the rotor. Further, the apparatus is provided with a drive conversion mechanism and the mechanism sequentially carrying out an opening and closing of the mechanical valve by pressing a switch salient with the roller moving on the cylindrical inner wall due to the rotation of the motor. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
