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1. WO1998037335 - MAGNETIC BEARING AND DRIVE

Publication Number WO/1998/037335
Publication Date 27.08.1998
International Application No. PCT/NL1998/000092
International Filing Date 13.02.1998
Chapter 2 Demand Filed 03.09.1998
IPC
F16C 39/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
39Relieving load on bearings
06using magnetic means
CPC
F16C 32/044
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
0406Magnetic bearings
044Active magnetic bearings
F16C 32/0472
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
32Bearings not otherwise provided for
04using magnetic or electric supporting means
0406Magnetic bearings
044Active magnetic bearings
0472for linear movement
Applicants
  • STICHTING VOOR DE TECHNISCHE WETENSCHAPPEN [NL]/[NL] (AllExceptUS)
  • MOLENAAR, Alexander [NL]/[NL] (UsOnly)
Inventors
  • MOLENAAR, Alexander
Agents
  • VAN BREDA, Jacques
Priority Data
100534421.02.1997NL
Publication Language English (EN)
Filing Language Dutch (NL)
Designated States
Title
(EN) MAGNETIC BEARING AND DRIVE
(FR) PALIER MAGNETIQUE ET ENTRAINEMENT
Abstract
(EN)
The invention relates to a magnetic bearing and drive comprising a stator and a movable element, wherein the stator and the movable element are components of a magnetic circuit, comprising at least one primary wire winding and a secondary wire winding for electric current so that when the primary and secondary wire windings are energized, the movable element undergoes a powering force, and wherein a permanent magnet is provided which forms a first magnetic circuit with the movable element, and the primary wire winding together with the movable element form a second magnetic circuit which is partially separated from the first magnetic circuit, and wherein the movable element is, at any rate partially, shared by the first magnetic circuit and the second magnetic circuit. The stator has limbs which are located substantially outside the plane of the movable element.
(FR)
La présente invention concerne un palier magnétique et un entraînement comprenant un stator et un élément mobile constituant les composants d'une boucle magnétique rassemblant un primaire et un secondaire qui, mis sous tension, soumettent l'élément mobile à des forces motrices. Un aimant permanent forme avec l'élément mobile une première boucle magnétique. Le primaire forme avec l'élément mobile une seconde boucle magnétique partiellement distincte de la première boucle magnétique. L'élément mobile est au moins partiellement commun à la première boucle magnétique et la seconde boucle magnétique. Des membres du stator sont disposés sensiblement à l'extérieur du plan de l'élément mobile.
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