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:
Jan. 07, 2014
Filed:
Jun. 09, 2010
Shi Uk Chung, Changwon, KR;
DO Hyun Kang, Changwon, KR;
Byung Chul Woo, Changwon, KR;
Ji Won Kim, Busan, KR;
Ji Young Lee, Changwon, KR;
Seung Ryul Moon, Changwon, KR;
Shi Uk Chung, Changwon, KR;
Do Hyun Kang, Changwon, KR;
Byung Chul Woo, Changwon, KR;
Ji Won Kim, Busan, KR;
Ji Young Lee, Changwon, KR;
Seung Ryul Moon, Changwon, KR;
Korea Electrotechnology Research Institute, Changwon, KR;
Abstract
Disclosed herein is a linear, curved or rotary electric machine. The electric machine includes first and second movers which are adjacent to each other and have a phase angle difference of 60° therebetween. The first mover includes phases U, V and W and the second mover includes phases /U, /V and /W. The electric machine of the present invention can reduce pulsations of thrust caused by end effect. In particular, in the case where the stator includes permanent magnets having the same poles and salient poles which alternate with the permanent magnets, the number of permanent magnets used can be reduced to half of that of a conventional linear electric machine.