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:
Oct. 30, 1979
Filed:
Sep. 19, 1977
Applicant:
Inventor:
Ernst Massar, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310178 ; 310219 ;
Abstract
The invention is directed to an electrical liquid contact for an electrical machine such as an electric unipolar machine with a horizontal shaft. The liquid contact includes a ring gap which is sealed laterally by ring gaps which extend at an angle or radially and in which the metallic liquid present therein is set in rotation. This is accomplished by a circulating pump located outside the ring gap. In addition, the speed of rotation in the ring gap is matched to the pressure of the liquid by changing the cross-sectional area of the passage through which the liquid flows.