Rotor pump`s e.g. vacuum pump, vane, has vane body comprising frame work structure with internal compartment walls transverse to longitudinal direction of vane, where internal compartment walls run in longitudinal axis

摘要

The vane (20) has a vane tip (34) provided at a vane body (32). The vane tip is protruded from a rotor (18). The vane tip rests against an inner peripheral surface of a pump housing (12), where the vane tip is a separate component. The vane body comprises a frame work structure with internal compartment walls transverse to a longitudinal direction of the vane. The internal compartment walls run in a longitudinal axis, where the internal compartment wall has an angle deviated from 0 and 90 degrees to external compartment walls of the vane.