| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compressor capable of reducing the load when restarting without deteriorating compressing performance. <P>SOLUTION: The compressor has the oscillating type stone 1 arranged in the second step side, the air releasing channel 7 formed in the piston and for releasing compressed air from the compression chamber from the time when compression operation is stopped to the time when the compression operation is restarted, and the valve body 8 for closing the air releasing channel during the compression predation. The valve body 8 is pushed by the compressed air in the cylinder and closes the air releasing channel 7 during the compression operation. Therefore, the compression performance is not deteriorated because the compressed air does not leak from the cylinder during the compression operation. Alternatively, the valve body 8 returns to an initial attaching position when the compression operation is stopped thereby the compression air remaining in the cylinder is released to the crank case side via the air releasing channel 7. Consequently, the load when restarting is reduced and the compressor can be smoothly started because the inside of the cylinder is decompressed via the air releasing channel when the compression operation is stopped. <P>COPYRIGHT: (C)2012,JPO&INPIT |
