The Claw Principle
The Rietschle claw pump consists of two rotors (1, 2) which rotate in opposite directions without contact, synchronised by precision oil lubricated gears. Air is drawn in at the suction port (4), compressed and exhausted at the discharge port (5).
The internal compression gives much higher efficiency than roots blowers, dry vane compressor and even dry screw compressors. A cooling fan directs air between the outer cover (10) and finned housing. This design is characterised by high efficiency oil free compression, low noise levels and very low maintenance requirements.