Generator rotor, especially turbo-generator rotor with superconducting field winding
AssigneeKraftwerk Union Aktiengesellschaft
InventorErich Weghaupt
Life of this patent
Estimating the term…
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.
Claims8
Generator rotor, comprising 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 said non-drive side, a hollow shaft end of said outer rotor part being supported in said first bearing, a journal of said inner rotor part being extended through said hollow shaft end and separately supported in said second bearing, a high-vacuum contactless liquid seal disposed between said hollow shaft end and said journal and having a sealing gap formed therebetween, a co-rotating sealing-liquid reservoir connected to said liquid seal, and magnetic field means for holding magnetic sealing liquid in said sealing gap.
Dependencies are inferred from the claim text.