Compressors are normally used in a wide range of industrial fields with a wide range of applications. Screw compressors work on the principal of air filling the void between two helical mated screws and their housing. These compressors inject oil into the bearing and compression area. The reasons are for cooling, lubrication and creating a seal between screws and housing walls to reduce internal leakages. After the completion of the set compression cycle, the oil and air must properly be separated before any air can be used by the air system.
Types
The types and characteristics defining the compressors can be broadly classified into two. These are;
1. The Capacity type- The screw type compression method is used to rotate a male and female screw rotor within the casing.
2. Centrifugal type – A turbo type compression creates a centrifugal force that rotates an impeller.