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:
Sep. 08, 2015
Filed:
Nov. 08, 2010
Kiyoshi Aizawa, Kobe, JP;
Katsuya Umemoto, Akashi, JP;
Minoru Yokoyama, Abiko, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe-Shi, JP;
Abstract
Provided are a rotor core, a method for cooling a rotor core, and a superconducting rotating machine, capable of effectively and uniformly cooling superconducting coils without causing cold brittleness in an extremely low temperature. The rotor core, which is made of a substantially hollow cylindrical member of nonmagnetic material, has a cylindrical cavitydefined therein and extending in the longitudinal axis of the member. Helium gasis delivered in the rotor corefrom the proximal to distal sides and vice versa, which ensures a uniform cooling of the rotor core. This also ensures a uniform and effective cooling of the superconducting coils.