The Regenerative Principle

In a regenerative blower, the compression space consists of a hollow circular ring between the tips of the impeller blades and the walls of the housing. In operation, the rotating impeller draws air from the inlet port into the compression space and moves it radially outward to the curved housing by centrifugal force. The action is called “regenerative” because a certain amount of air slips past each impeller blade during rotation and returns to the base of a succeeding blade for re-acceleration. Regenerative blowers provide performance comparable to many multi-stage or positive displacement blowers and offer dependable, low-maintenance operation.

line drawing of regenerative blower