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:
Feb. 05, 2019

Filed:

Oct. 30, 2013
Applicant:

Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, Hyogo, JP;

Inventors:

Katsuya Umemoto, Akashi, JP;

Satoru Takao, Akashi, JP;

Kiyoshi Aizawa, Kobe, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 9/197 (2006.01); H02K 9/10 (2006.01); H02K 9/20 (2006.01); H02K 55/04 (2006.01);
U.S. Cl.
CPC ...
H02K 9/10 (2013.01); H02K 9/197 (2013.01); H02K 9/20 (2013.01); H02K 55/04 (2013.01); Y02E 40/625 (2013.01);
Abstract

A cooling medium supply/discharge device includes a cylindrical rotary casing which is rotatable with a rotary shaft of the rotor; a cylindrical stationary casing fixed such that the stationary casing extends inward relative to the rotary casing and coaxially with the rotary casing, the stationary and rotary casings being relatively rotatable; a first stationary cylindrical body which is inserted into the stationary casing such that the first stationary cylindrical body is not rotatable; a first rotary cylindrical body which is inserted into the first stationary cylindrical body with a gap such that the first rotary cylindrical body is rotatable together with the rotary shaft; a second stationary cylindrical body which is inserted into the first stationary cylindrical body such that the second stationary cylindrical body is not rotatable; and a second rotary cylindrical body which is inserted into the first rotary cylindrical body and rotatable together with the rotary shaft.


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