Working of Single Stage Reciprocating Air compressor

In a Single stage compressor the compression of the air from the initial pressure to final pressure is carried out in one cylinder only. It consists of cylinder, piston, connecting rod, crank, inlet and discharge valves. When the piston moves downward i .e, during suction stroke, the pressure of air inside the cylinder falls below the atmospheric pressure.

So, the inlet valve opens and the air from atmospheric is sucked into the cylinder until the piston reaches the bottom dead center. During this stroke, delivery valve remains closed. When the piston moves upwards both valves are closed. So, the pressure inside the cylinder goes on increasing till it reaches required discharge pressure. At this stage, the discharge valve opens and the compressed air is delivered through the valve. Thus , the cycle is repeated.

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Mechinopedia For Mechanical Engineers

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