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Fig. 3.25: Suction rate and free air delivered | Suction rate - Output
Stroke volume flow - Volume flow
The suction rate (stroke volume flow) is a calculated size for piston compressors. It is the product of cylinder capacity, compressor speed (number of strokes) and the number of intake cylinders. The stroke volume flow is given in l/min, m³/min and m³/h .
The output (free air delivered FAD) is measured according to VDMA Unit Sheet 4362, DIN 1945, ISO 1217 or PN2 CPTC2.
The ratio of output to induction rate is the volumetric efficiency rate.BR><BR>
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