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:
Jan. 05, 1982
Filed:
Sep. 06, 1979
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 52 ; 310 90 ; 62505 ; 277 15 ;
Abstract
In an electric machine with a superconducting exciter winding and a cylindrical shaft end piece in its rotor around which end piece a nonrotating connector head part is arranged, with at least one bearing and at least one sealing device provided between these components, the radial bearing clearance is made so small that the connector head part follows the radial deflections of the shaft end piece from its ideal position relative to the axis of rotation permitting the use of seals with good sealing properties, in particular ferrofluidic seals.