Piston Type Vacuum PumpLike as Figure1-2.(a), there are composed of the rotor made Like as Figure1-2.(a), there are composed of the rotor made and the back cover.When the rotor rolls, the air is inhaled into the cylinder through the Inlet port. This process continues until Figure1-2-(b)- and the air is started compressing as passing the state of Figure1-2- (b)-, After compressing completely (about over 850 Torr ), the compressed air is extruded through the exhaustion valve. |