The most common positive displacement compressor of industrial compressor

Piston compressor is one of the most common positive displacement compressors.

It uses crank-connecting rod mechanism to change the rotary motion of the driving machine into the reciprocating motion of the piston.

The piston and the cylinder together constitute the working chamber of the compressor. By the reciprocating motion of the piston in the cylinder and the automatic opening and closing of the intake and exhaust valves, the gas periodically enters the working chamber of the cylinder for compression and discharge.