Rotary compressor (sliding vane type)

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Sliding vane type rotary compressor

 

In a sliding vane compressor ,an eccentrically mounted cylindrical slotted rotor turn within a large diameter housing as shown in the figure.



Rectangular vanes  slide in and out of the rotor slots and are held against the casing wall by centrifugal force as the rotor turns, air is compressed between the vanes and discharge through a port on the compression side. 

Oil is injected into the compression chamber to provide lubrication and a compression seal. most of this oil is remove in an oil/air separator for reuse in the compression process.

This type compressor produce pressure up to 125 psig in one or two stage at flows of 100 to 600 standard cubic feet per minute.


This is not likely to be used is specially for instrument air but might be used in a system from which in instrument air is taken.

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