How does a screw compressor generate pressure?

A screw compressor generates pressure by compressing gas within helical lobes. This design features two interlocking screws, or rotors, that rotate in opposite directions. As the rotors turn, they draw in gas through an inlet and move it along the length of the screws. The space between the screws progressively diminishes from the inlet to the outlet, which leads to an increase in pressure as the gas is trapped and compressed.

This method of compression is efficient and allows for continuous operation, making screw compressors popular in various industrial applications, including refrigeration and air conditioning systems. The unique shape of the helical lobes facilitates a smooth flow of gas and helps minimize pulsation, contributing to reliable performance.