The claw pump has two contact free claw-shaped rotors, turning in opposite directions from one another. These rotors are timed and synchronized using a high-performance gearbox. As the rotors turn, the claw travels over the suction connection, pulling inlet gas into the compression chamber. As rotors continue to rotate, gas moves from the suction side to the pressure side. It is then compressed by the reduction of volume between the rotors. During this process, the discharge channel is temporarily sealed by the lower rotor. The gas then travels out the discharge channel once it reaches maximum compression.