The compressor is driven directly by the motor, causing the crankshaft to create rotational motion. As a result, the connecting rod is driven, leading the piston to produce reciprocating motion and causing a change in cylinder volume. This change in volume results in a variation in pressure within the cylinder. During the compression stroke, the intake valve allows air to enter the cylinder through the air filter (muffler). As the cylinder volume decreases, the compressed air flows out through the exhaust valve, exhaust pipe, and check valve (check valve) into the storage tank. Once the exhaust pressure reaches the preset rating of 0.7MPa, the pressure switch takes control and automatically stops the process. Conversely, when the pressure in the storage tank drops to around 0.5-0.6MPa, the pressure switch will be triggered to reconnect and start the system again.
The fundamental device of a pneumatic system is the air compressor, responsible for delivering air power. It is considered as the backbone of the electromechanical air source facility and the device that converts mechanical energy from an original motor (usually a diesel engine or a motor) to generate air pressure. Therefore, the air compressor serves as the primary machine that produces compressed air pressure.