Types of Air Compressor
- According to the design and principle of operation
- Reciprocating compressor
- Rotary screw compressor
- According to the number of stages
- Single stage compressor
- Multi stage compressor
- According to the pressure limits
- Low pressure compressors
- Medium pressure compressors
- High pressure compressors
- Super high pressure compressors
- According to the capacity
- Low capacity compressors
- Medium capacity compressors
- High capacity compressors
- According to the method of cooling
- Air cooled compressor
- Water cooled compressor
Positive-displacement air compressors work by forcing air into a chamber whose volume is reduced to compress the air. Piston-type air compressors use this principle by pumping air into an air chamber through the use of the constant motion of pistons. They use one-way valves to guide air into a chamber, where the air is compressed. Rotary screw compressors also use positive-displacement compression by matching two helical screws that, when turned, guide air into a chamber, whose volume is reduced as the screws turn. Vane compressors use a slotted rotor with varied blade placement to guide air into a chamber and compress the volume.
Negative-displacement air compressors include centrifugal compressors. These use centrifugal force generated by a spinning impeller to accelerate and then decelerate captured air, which pressurizes it.
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