OPERATING PRINCIPLES
How a Twin Screw Compressor Works
The Whipple twin screw compressor moves air in three continuous phases. The compression sequence runs on all rotor segments simultaneously, so airflow is smooth and boost arrives the instant you touch the throttle.
Inlet Phase
The male and female rotors rotate counter to each other. As the lobes of each rotor travel past each inlet port, air is trapped between consecutive lobes and the cylindrical casing. The air moves axially (forward) throughout the case and fills the inner-lobe space between adjacent lobes.
Compression Phase
As the rotors mesh, the air is trapped between the rotors and the casing. Continued rotation progressively reduces the space occupied by the air causing compression.
Discharge Phase
Compression continues until the inner-lobe space becomes exposed to the outlet port, through which the air is discharged into the manifold.
See The Technology In A Complete System
Every Whipple kit is built around this compressor.