Schlueter - Model SCH -Lobe-Aire Vertical Vacuum Pumps

Matched impellers rotating in opposite directions, trap a volume of air at the inlet and move it around the perimeter to the outlet. This cycle is repeated four times during each revolution of the input shaft. The capacity of the blower is proportional to the speed of rotation, while pressure is generated by system resistance. Rotation of the impellers is synchronized by helical timing gears which are keyed to the shafts, eliminating contact between impellers.