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:
Oct. 02, 2018
Filed:
Nov. 04, 2014
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
Jun Yoshida, Tokyo, JP;
Kazuhiko Takahashi, Yokohama, JP;
Norihito Yanagita, Yokohama, JP;
Shigeki Tounosu, Yokohama, JP;
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
Abstract
Rotating machinery of the invention includes a 2n-pole rotor, 72n slots, and three-phase armature windings (n≥1). Each of the slots houses a top coil on an inner radius side of the slots and a bottom coil on an outer radius side thereof. Each of the armature windings is formed by connecting the top and bottom coils and has 2n phase belts per phase. Each of the phase belts includes a first parallel winding and a second parallel winding. The top and bottom coils are formed by arranging the first and second parallel windings in a predefined order when a circumferential mean position of all top coils and bottom coils in each of the phase belts is defined as a phase belt center and an arrangement of the first and second parallel windings in at least one phase belt is viewed in an order of proximity to the phase belt center.