The air compressor is driven by the motor directly to the compressor, so that the crankshaft generates rotary motion, and the connecting rod causes the piston to generate reciprocating motion, resulting in the change of cylinder volume. Due to the change of pressure in the cylinder, through the inlet valve to make the air through the air filter (silencer) into the cylinder, in the compression stroke, due to the cylinder volume reduction, the role of compressed air through the exhaust valve, the exhaust pipe, one-way valve (check valve) to storage tanks, when the exhaust pressure to achieve the rated pressure of 0.7 MPa is controlled by a pressure switch and automatic stop. When the pressure of the storage tank is reduced to 0.5-- 0.6mpa, the pressure switch automatically joins up.
