Bearings

US4080012A · kind A · utility

Assignee

• Padana AG · CH

Inventors

• Karl Boden
• Werner Geweke

Key dates

• Filing date: Apr 29, 1975
• Grant date: Mar 21, 1978
• Expiry date: Apr 29, 1995

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C32/048
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A contactless magnetic bearing system comprises a passive axial bearing element which serves to exert axial stabilizing forces on the rotor and at the same time exerts radial destablizing forces thereon, a controlled or active radial bearing element for counteracting these radial destabilizing forces and a passive radial bearing element which supports and journals the rotor at a position axially spaced from the two first-mentioned bearing elements. The axial destabilizing forces produced by the passive radial bearing are counteracted by the much stronger axial forces exerted by the passive axial bearing element.