RevisionC-Developmentofconceptofcompressorforcommercialvehicle

Figure 1:1: A typical air compressor
Positive displacement air compressors are of two type: -
1.1.1 Rotary or Screw Type
1.1.2 Reciprocation Type
1.1.1 Rotary or Screw Type
Figure 1:2: Rotary type air compressor
Rotary type air compressor is a machine in which the compression is affected by a
rotating vane or impeller that imparts velocity to the flowing air to give it the desired pressure. [3]
The rotary or screw type air compressor has the below properties: -
• Mass flow-rate for these compressors are higher due to continuous operation,
• Lower efficiency and pressure
• Commonly used in smaller vehicles,
• light in weight and Small in size,
• Designing of this type of air compressor is simple,
• Commonly used in smaller vehicles,
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