VACUUM PUMP

PROBLEM TO BE SOLVED: To provide an improved vacuum pump having a permanent magnet supporting portion capable of reducing or preventing demerits of prior arts.SOLUTION: A vacuum pump, in particular a turbo molecular pump, has a rotor (149) rotatable on a rotating shaft (151) relative to a stator of...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Wirth, Adrian, Conrad, Armin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS BEARINGS BLASTING ELECTRICITY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDUCTANCES LIGHTING MAGNETS MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY BODIES OTHER THAN GEARING ELEMENTS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SHAFTS THERMAL INSULATION IN GENERAL TRANSFORMERS WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an improved vacuum pump having a permanent magnet supporting portion capable of reducing or preventing demerits of prior arts.SOLUTION: A vacuum pump, in particular a turbo molecular pump, has a rotor (149) rotatable on a rotating shaft (151) relative to a stator of the vacuum pump, and at least one permanent magnet supporting portion (31, 61) is disposed for the rotatable supporting portion. The permanent magnet supporting portion (31, 61) has at least one, in particular ring-shaped or hollow cylinder-shaped, monolith-type permanent magnet (33, 35, 63, 65, 71, 73), which has two or more parts (41, 43, 45, 47, 49) continuous in an axial direction. Neighboring ones of the parts (41, 43, 45, 47, 49) have at least magnetic pole directions (P, P') basically opposite to each other.SELECTED DRAWING: Figure 1