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. 08, 2019
Filed:
Aug. 06, 2014
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Naoki Kunihiro, Tokyo, JP;
Daisuke Kori, Tokyo, JP;
Motonobu Iizuka, Tokyo, JP;
Tetsuo Fujigaki, Tokyo, JP;
Atsushi Fukunaga, Tokyo, JP;
Yasunori Otsuki, Tokyo, JP;
Masakatsu Sato, Tokyo, JP;
Masanori Matsumoto, Tokyo, JP;
Takeshi Nakayama, Tokyo, JP;
Masaaki Endo, Tokyo, JP;
Yoshihiro Yasui, Tokyo, JP;
Yasushi Hayasaka, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A rotating electric machine comprises a field winding provided on a rotor iron core and a neutral ring supported independently of the field winding, wherein: the field winding and the neutral ring are electrically connected to each other through a connecting wire; the neutral ring is disposed spaced with respect to the rotor iron core; and the connecting wire absorbs the stress difference between the field winding and the neutral ring when a centrifugal stress is applied.