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:
Dec. 16, 2014
Filed:
Feb. 22, 2013
Tomohiko Miyamoto, Toyota, JP;
Kenjiro Nagata, Okazaki, JP;
Tomohiko Miyamoto, Toyota, JP;
Kenjiro Nagata, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-shi, JP;
Abstract
A rotating electrical machine cooling system includes a cooling structure for a rotating electrical machine that is mounted on a hybrid vehicle, and a controller. The cooling structure includes a coolant discharge channel and a coolant supply channel through which a coolant is circulated between an oil pump unit and the interior of a case body that includes the rotating electrical machine therein. The cooling structure further includes a bypass flow channel that connects the oil pump unit and the interior of the case body with each other, and a relief valve that is provided in the bypass flow channel. The oil pump unit includes a mechanical oil pump and an electric oil pump.