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. 12, 1981
Filed:
Jul. 09, 1979
Dieter Kullmann, Langenzenn, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A cooling arrangement for the rotor of an electric machine having a superconducting field winding and a co-rotating mixing chamber containing a phase mixture of a coolant has a coolant distribution system arranged at the outer circumference of the field winding which feeds coolant into cooling canals through the field winding into the mixing chamber. There are also corresponding coolant connecting lines outside the winding, at least one coolant feed line connected to the coolant distribution system for supplying coolant from the outside, and a discharge for the gaseous coolant at a pressure below 10.sup.5 Pa. In this cooling arrangement, cooling of the field winding is advantageously brought about by self-pumping. Simple and effective cooling-down is achieved.