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:
Jul. 01, 2014
Filed:
Nov. 20, 2009
Kazuhiro Goto, Toyota, JP;
Yasuhiro Endo, Okazaki, JP;
Tomoka Sonohara, Toyota, JP;
Tomohiko Miyamoto, Toyota, JP;
Masao Okumura, Chiryu, JP;
Atomi Arakawa, Anjo, JP;
Kazuhiro Goto, Toyota, JP;
Yasuhiro Endo, Okazaki, JP;
Tomoka Sonohara, Toyota, JP;
Tomohiko Miyamoto, Toyota, JP;
Masao Okumura, Chiryu, JP;
Atomi Arakawa, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A motor-generator which is a rotating electrical machine is provided with a coil end cover and a plurality of connecting wires. The coil end cover forms a cooling oil passage around a coil end portion and a cooling oil passage around a coil end portion, and a cooling oil communicating passage that communicates the cooling oil passage with the cooling oil passage on the inside of the stator core. The plurality of connecting wires are provided in the cooling oil passage. The direction in which the cooling oil flows in the cooling oil passage is the same as the direction in which the connecting wires extend at an angle from the radial outside to the radial inside of the stator core. The flowrate of cooling oil in the cooling oil passage is set larger than the flowrate of cooling oil in the cooling oil passage.