Shaft seal ring for a sealing oil seal system of a hydrogen-cooled generator

摘要

The ring (1) has a set of axially extending lubricating grooves provided over circumference in portions (6) of a running surface arranged on an inner face (2) of the ring, where the ring is made of lead-bronze and designed in an installed state to bear radially against a generator shaft using the running surface and to interact with the shaft under the action of barrier oil with hydrogen sealing. A circumferential furrow (5) is provided in the running surface through which the barrier oil flows to the generator shaft.