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:
Sep. 29, 2015
Filed:
Feb. 24, 2012
Chun Yick Chung, Hong Kong, CN;
Chun Kit Cheung, Hong Kong, CN;
Duncan Yiu Lung Wong, Hong Kong, CN;
James Ching Sik Lau, Hong Kong, CN;
Chun Yick Chung, Hong Kong, CN;
Chun Kit Cheung, Hong Kong, CN;
Duncan Yiu Lung Wong, Hong Kong, CN;
James Ching Sik Lau, Hong Kong, CN;
JOHNSON ELECTRIC S.A., Murten, CH;
Abstract
A motor for a fuel pump includes a rotor which includes a shaft, a rotor core and a commutator fitted on the shaft. The rotor core is formed by stacking together a plurality of aligned laminations and includes a plurality of salient poles arranged along a circumference thereof. A center line of gravity of the rotor deviates from a rotational axis of the rotor. The rotor core has a first groove in one of the poles close to the center line of gravity of the rotor. The first groove extends from a first axial end of the rotor core to an axial middle portion of the rotor core.