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:
Apr. 19, 1983
Filed:
May. 20, 1981
Erich Weghaupt, Mulheim, DE;
Kraftwerk Union Aktiengesellschaft, Mulheim, DE;
Abstract
Generator rotor, including an inner and an outer concentric rotor part having a non-drive side and enclosing a high vacuum space, a first and a second bearing disposed on the non-drive side, a hollow shaft end of the outer rotor part being supported in the first bearing, a journal of the inner rotor part being extended through the hollow shaft end and separately supported in the second bearing, a high-vacuum contactless liquid seal disposed between the hollow shaft end and the journal and having a sealing gap formed therebetween, a co-rotating sealing-liquid reservoir connected to the liquid seal, and magnetic field means for holding magnetic sealing liquid in the sealing gap.