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. 31, 2017
Filed:
Mar. 07, 2014
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-shi, Aichi-ken, JP;
Yoshitada Yamagishi, Okazaki, JP;
Yu Hirai, Toyota, JP;
Tatsuhiko Mizutani, Toyota, JP;
Masashi Matsumoto, Nagoya, JP;
Takashi Matsumoto, Toyota, JP;
Shinya Sano, Toyota, JP;
Taketo Takeuchi, Nishio, JP;
Akifumi Kurokawa, Kariya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
AISIN AW CO., LTD., Anjo-shi, Aichi-ken, JP;
AISIN SEIKI KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A rotorincludes a shaft having a coolant flow passage and a coolant supply port, a rotor corefixed on the shaft and formed of laminated steel plates, and a magnet setprovided in the rotor coreto extend along an axial direction thereof. The rotor corehas a first flow passageprovided near the magnet to extend therealong and a second flow passagethat connects the coolant supply portof the shaftand the first flow passage, thereby constituting a coolant flow path. The second flow passageis formed by overlapping second slitsformed in the respective steel plates at an axially intermediate region A of the rotor core, the formed position of the second slitbeing different for each steel plate combined. The first flow passageand the second flow passagejoin at the axially intermediate region A of the rotor core