LOOPWIEL VOOR EEN TURBOMOLECULAIRE POMP.

摘要

A turbo molecular pump is provided with rotor and stator wheels containing thin-walled blades each having the same thickness, with the blades extending radially outwardly from a carrier body which can be either ring or disc shaped. Each blade is shaped so that the acute angle formed between the tangential plane at any given point on its surface spaced from the axis of the wheel and the plane of the wheel decreases as the distance of the point increases from the axis of the wheel.