Positive Displacement Compressor,  R

Rotary Screw Compressor

A machine that uses two meshing helical screws, known as rotors, to compress gas. In a dry running rotary screw compressor, timing gears ensure that the male and female rotors maintain precise alignment. In an oil-flooded rotary screw compressor, lubricating oil bridges the space between the rotors, both providing a hydraulic seal and transferring mechanical energy between the driving and driven rotor.

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