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:
Aug. 17, 2010
Filed:
Feb. 25, 2004
Yuki Nakajima, Yokohama, JP;
Masahiro Tsukamoto, Yokohama, JP;
Masakazu Kobayashi, Kanagawa, JP;
Yutaro Kaneko, Yokohama, JP;
Hiroyuki Kaneko, Yokohama, JP;
Toshiro Shinohara, Kanagawa, JP;
Makoto Iwashima, Kanagawa, JP;
Yasuhiko Kitajima, Kanagawa, JP;
Akihiro Hanamura, Yokohama, JP;
Kouichirou Yonekura, Kanagawa, JP;
Tadayuki Hatsuda, Kanagawa, JP;
Yuki Nakajima, Yokohama, JP;
Masahiro Tsukamoto, Yokohama, JP;
Masakazu Kobayashi, Kanagawa, JP;
Yutaro Kaneko, Yokohama, JP;
Hiroyuki Kaneko, Yokohama, JP;
Toshiro Shinohara, Kanagawa, JP;
Makoto Iwashima, Kanagawa, JP;
Yasuhiko Kitajima, Kanagawa, JP;
Akihiro Hanamura, Yokohama, JP;
Kouichirou Yonekura, Kanagawa, JP;
Tadayuki Hatsuda, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A drive unit for an electric vehicle is comprised of a motor, an inverter which supplies alternating current electric power to the motor, a speed reducer which is connected to the motor, and a cooling system which cools the motor, the inverter and the speed reducer. The speed reducer reduces a revolution speed of a mechanical output of the motor. The cooling system comprises a heat exchanger at which first refrigerant for receiving heat of at least one of the motor and the inverter receives heat of second refrigerant for receiving heat of at least one of the motor and the speed reducer.