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. 20, 1980
Filed:
Mar. 27, 1978
Werner Fritz, Bochum, DE;
Erich Weghaupt, Mulheim an der Ruhr, DE;
Kraftwerk Union Aktiengesellschaft, Mulheim an der Ruhr, DE;
Abstract
A coolant circulatory loop for a turbogenerator rotor having a superconductive field winding and a damper and cold shielding surrounding the field winding, the field winding being cooled by deeply-cooled liquid helium, and the damper and cold shielding by an at least partly vaporized partial flow of helium that has flowed through the field winding, includes a mixing chamber, means for feeding liquid helium in forced circulation from the mixing chamber to the field winding wherein it is heated due to winding losses and pressure reduction and is partly evaporated, means located in the rotating rotor for recooling the non-evaporated helium by removing heat of vaporization therefrom and returning the thus recooled helium to the mixing chamber, cooling means external to the rotor for recooling the partial flow of helium after it has cooled the damper and cold shielding and means for feeding the recooled partial flow of helium back to the mixing chamber.