Vacuum pump, e.g. for a rotary piston pump, has a cylindrical operating chamber with a vane/blade fitted between an inlet and an outlet so as to slide in a guide slot on an eccentric rotary piston

摘要

Fitted to rotate on bearings as a rotary piston, an orbiter (6) towers above the length of a bearing neck (5) in its operating width and consists of two interlocked circular rings, an outer slotted sealing ring (SR) (7) and an inner bearing ring (8) in it at the center to hold the bearing neck. The SR clearly towers above the bearing ring.