Vacuum pump

F - Mech Eng,Light,Heat,Weapons – 01 – D

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230/127

F01D 5/00 (2006.01) F04D 19/04 (2006.01) F04D 29/04 (2006.01)

Patent

CA 1300579

ABSTRACT OF THE DISCLOSURE A turbo-molecular vacuum pump has a high vacuum side and a fore vacuum side in the form of a molecular pump in which the rotor and stator are conical or frusto-conical, with the rotor surface having a helical groove and the axial bearing for the rotor being located at the real or imaginary apex of the rotor cone.

535012

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