Magnetic bearing hub and vacuum pump

A magnetic bearing hub 21 for a vacuum pump (Fig.1) comprising a base element 24 to be connected to the housing 10 of the vacuum pump and a trunnion 20 extending from the base element, wherein the trunnion is configured to receive a static magnetic element of the magnetic bearing, and wherein the tr...

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Bibliographic Details
Main Authors Daniel Suarez Arias, Nicolas Jonathan Grant
Format Patent
LanguageEnglish
Published 18.09.2024
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:A magnetic bearing hub 21 for a vacuum pump (Fig.1) comprising a base element 24 to be connected to the housing 10 of the vacuum pump and a trunnion 20 extending from the base element, wherein the trunnion is configured to receive a static magnetic element of the magnetic bearing, and wherein the trunnion has a predetermined breaking point. A vacuum pump comprising an inlet 12, outlet 14 and a rotor assembly 16 supported by the aforementioned magnetic bearing hub 21 connected via webs. The predetermined breaking point may supress natural frequencies and be built by a thin-walled section, may be a circumferential groove 28 and may have a thickness of less than 80%, 60% or most preferably less than 50% of the remainder of the wall and may be configured to break at 10%-50% of the maximum torque.
Bibliography:Application Number: GB20220008315