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.

Date of Patent:
Aug. 11, 2020

Filed:

Dec. 18, 2015
Applicant:

Ingersoll-rand Company, Davidson, NC (US);

Inventors:

Petri J Maki-Ontto, Espoo, FI;

Fredrik Boxberg, Espoo, FI;

Esa H Vikman, Espoo, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/28 (2006.01); H02K 1/27 (2006.01);
U.S. Cl.
CPC ...
H02K 1/278 (2013.01); H02K 1/28 (2013.01);
Abstract

A fixation system that is structured to secure one or more permanent magnets to a rotor core. The fixation system may include one or more retention wedges that exert an interference or press fit against the permanent magnets to secure the permanent magnets to the rotor core. At least a portion of the retention wedges may be secured within axially extending channels in the rotor core. Additionally, the permanent magnets may be separated from each other by eddy current shields, which may also be retained in position by the retention wedges. The fixation system may also include a magnet pressure or fixation sleeve that exerts a radially inwardly directed force against the magnets and is free from direct contact with the retention wedges. According to certain embodiments, the magnet pressure or fixation sleeve may be shrink fitted onto at least a portion of the rotor core and/or the permanent magnets.


Find Patent Forward Citations

Maki-Ontto, Petri. (2020). Fixation system for a permanent magnet rotor (U.S. Patent No. 10742082). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10742082

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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