Important Things About Screw Air Compressors

The rotating screw belongs to the positive volume compressor family. Positive volume pumps create flow using an expanding cavity on the suction side and a decreasing cavity on the discharge side. Gas trapped in a displacement engine has a fixed volume which is then compressed or moved in the exhaust manifold.

The two most commonly used compressors today are the rotary screw (spiral rotor) and the piston. You can also look for the best turn air converters through various online sites.

Rotary Screw Air Compressor

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The screw compressor was originally developed in the mid-1950s and was eventually developed to work between the reciprocating piston and centrifugal engines for commercial, industrial, and gas applications.

The screw compressor consists of two intermeshing spiral rotors housed in a housing. The distance between the rotor and between the housing and the rotor is typically 0.003" to 0.005". The plug-in or drive rotor is connected by extending the shaft with an electric motor or motor. 

In oil-injected engines, the female rotor is driven by the male rotor through a thin layer of oil. Dry screw compressors use a set of synchronizer gears to achieve precise rotation.

When power is applied to the male rotor, it begins to move out of the mesh with the female rotor, creating a gap that allows gas to be drawn in through the inlet. As the rotor moves through the inlet, the gap continues to expand until the gas completely fills the gap.