The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 1983
Filed:
May. 09, 1980
Karl Boden, Julich, DE;
Johan K Fremerey, Bonn, DE;
Abstract
A magnetic suspension system, especially for a rotor, comprises a stator having two axially spaced permanent magnets which are poled the same as a pair of spaced-apart permanent magnets on the rotor so that a repulsion field suspends the rotor within the stator. A magnetic coil surrounds the rotor and is disposed between the pole pieces of the stator substantially bridging the gap between them and the permanent magnets of the stator and the rotor repel each other in the axial direction. A contactless field sensor responds to the axial position of the rotor and controls the energization of the magnetic coil to stabilize the axial position of the rotor by augmenting or decreasing the net axial forces generated by the magnetic fields in the axial direction.