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:
May. 01, 2018
Filed:
Aug. 31, 2015
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Manabu Yoshinori, Tokyo, JP;
Yoshiaki Kitta, Tokyo, JP;
Koichi Ojima, Tokyo, JP;
Hiroyuki Higashino, Tokyo, JP;
Toshiya Chazono, Tokyo, JP;
Masaki Horii, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/00 (2006.01); H02K 1/32 (2006.01); H02K 9/19 (2006.01); H02K 5/20 (2006.01);
U.S. Cl.
CPC ...
H02K 1/32 (2013.01); H02K 5/20 (2013.01); H02K 9/19 (2013.01);
Abstract
A coolant flow path structure which cools a rotor is configured of a first coolant flow path forming a radial coolant flow path of the rotor and a second coolant flow path communicating with the first coolant flow path and forming an axial coolant flow path of the rotor, and a negative pressure structure, which brings an exist of the coolant flow path structure into a negative pressure as a result of a rotation of the rotor, is provided at the exit of the second coolant flow path.