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.

Date of Patent:
Mar. 31, 2020

Filed:

Jun. 21, 2018
Applicant:

Kubota Corporation, Osaka, JP;

Inventors:

Sumio Yagyu, Osaka, JP;

Kazuto Okazaki, Osaka, JP;

Assignee:

KUBOTA CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 5/20 (2006.01); H02K 9/16 (2006.01); F28F 1/16 (2006.01); H02K 9/19 (2006.01); H02K 9/00 (2006.01);
U.S. Cl.
CPC ...
H02K 5/20 (2013.01); F28F 1/16 (2013.01); H02K 9/16 (2013.01); H02K 9/00 (2013.01); H02K 9/19 (2013.01);
Abstract

A liquid-cooled motor includes a motor arranged inside a motor case; an internal tube arranged inside the motor case; an external tube arranged outside the motor case; and a supporting member fixed to the motor case to support the internal tube and the external tube and to allow the internal tube and the external tube to be communicated with each other. The supporting member includes a first supporting portion arranged to the motor case side to support the internal tube; and a second supporting portion arranged to another side opposite to the motor case side to support the external tube. The first supporting portion includes sealing members arranged along an outer circumference surface of the internal tube; an air chamber arranged between the sealing members; and a water draining portion allowing the air chamber and an outside portion of the motor case to be communicated with each other.


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