Reciprocating Compressor or Piston Compressor
A piston is a simple type of air compressor. A shaft driven by an electric motor is rotated to raise and lower a piston inside a chamber. On every down stroke of the piston, air is brought into the chamber through an intake valve. On the upstroke of the piston, which compresses the air, another valve is opened to crunch the air molecules closer together. During the upstroke of the piston, the intake valve is closed. This compressed air is fed into a reservoir tank for storage. The storage tank is used so the air can be transported through pipes to machines.