The working principle of an air compressor: an air compressor is a device used to compress gas. The air compressor is similar in structure to the water pump.

Most air compressors are of the reciprocating piston type, with rotating blades or rotating screws. Centrifugal compressors are very large applications. The compressor is directly driven by the electric motor, which causes the crankshaft to produce rotational movement, and drives the connecting rod to make the piston produce reciprocating movement, which causes the cylinder volume to change.

Due to the change of the pressure in the cylinder, the air enters the cylinder through the air filter (muffler) through the intake valve. During the compression stroke, due to the reduction of the cylinder volume, the compressed air passes through the exhaust valve and passes through the exhaust pipe. The direction valve (check valve) enters the gas storage tank, and when the exhaust pressure reaches the rated pressure of 0.7MPa, it is controlled by the pressure switch and automatically stops.

When the pressure of the gas storage tank drops to 0.5-0.6MPa, the pressure switch is automatically connected and activated. The air compressor is to provide air source power, is the core equipment of the pneumatic system, the main body of the electromechanical bleed air source device, it is a device that converts the mechanical energy of the prime mover (usually a motor or a diesel engine) into gas pressure energy, which is compression Air pressure generating device.

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