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. 09, 2005
Filed:
Nov. 16, 2001
Maurice Brunet, Sainte Colombe près Vernong, FR;
Ulrich Schroeder, Mont Saint Aignan, FR;
Yann Tremaudant, Poissy, FR;
Maurice Brunet, Sainte Colombe près Vernong, FR;
Ulrich Schroeder, Mont Saint Aignan, FR;
Yann Tremaudant, Poissy, FR;
Societe de Mecanique Magnetique, Saint Marcel, FR;
Abstract
The rotary machine comprises a rotary shaft () supported by first and second radial magnetic bearings () that are electrically controlled by a control device (), said rotary shaft being fitted with an axial abutment device () comprising a rotor formed by a disk () secured to the rotary shaft () and interposed between first and second stators () formed annularly around the rotary shaft and each including at least one annular coil () controlled electrically by a system for servo-controlling the axial position of the rotary shaft. The stator () of the axial abutment device () further comprises a secondary induction circuit (), and the disk () secured to the rotary shaft comprises a primary induction circuit () so that during rotation of the shaft, electricity is excited in the secondary induction circuit in order to supply energy to the radial magnetic bearings.