System for sealing shafts against solid containing gaseous media
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United States of America Patent
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Oct 9, 1984
Grant Date -
N/A
app pub date -
Jan 25, 1983
filing date -
Mar 8, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system of sealing a shaft from a wearing gaseous compressed medium includes a sealing box arranged on a shaft, a source of scavenging gas, a lubricating element which communicates with the source of scavenging gas so that a lubricant in the lubricating element is under a pressure of scavenging gas higher than a medium pressure in a medium chamber and is supplied to the sealing box, and a throttling element for throttling a portion of scavenging gas from the source and supplying the throttled portion of the scavenging gas into the region of the sealing box.
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