Patent ID: 8186983

Claim:
A gas compressor comprising: a compression mechanism for suctioning gas through a gas suction path to compress the gas and then discharging the compressed gas; and a check valve for preventing the gas from flowing backward in the gas suction path, wherein: the check valve includes: an accommodation hole, one end of the accommodation hole opened toward the gas suction path and another end of the accommodation hole being functioned as a gas reservoir; a valving element accommodated within the accommodation hole movably; a valve seat provided at the opened end of the accommodation hole for closing the gas suction path while the valving element is pressed onto the valve seat; and an urging component for urging the valving element toward the valve seat, a gas release groove grooved on an inner surface of the accommodation hole, the gas reservoir is communicated with the gas suction path through the gas release groove, and the gas release groove is grooved linearly along the accommodation hole.