| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily control the compressed air flowing direction in time by arranging a three-way directional control solenoid valve in a delivery port of an air compressor, and adjusting a flow rate by controlling the three-way directional control solenoid valve by a timer circuit mounted inside the air compressor in the air compressor used in a high degree treating septic tank. SOLUTION: A three-way directional control solenoid valve 2 is connected to a delivery port 1 of an air compressor attached to a septic tank, and a timer circuit 4 is installed on an upper surface of a cover 3 of the air compressor by fastening of a machine screw. In order to prevent infiltration of rain, an air cleaner cover 6 is installed on an upper surface of the cover 3 by fastening of a bolt through packing 5. In operation, the three-way directional control solenoid valve 2 is switched by output of the timer circuit 4, and compressed air 2 coming out of the delivery port 1 is successively delivered from a first outlet 7 or a second outlet 8. The setting time of the timer circuit 4 is optionally set, and the compressed air flowing direction is automatically switched thereby in the setting time.</p> |
