Mechanical end face seal having an improved mating ring
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United States of America Patent
Stats
-
Nov 21, 1995
Grant Date -
N/A
app pub date -
Oct 25, 1993
filing date -
Oct 25, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanical end face seal with a mating ring having a beveled inner diameter extending frusto-conically to the back face. Atmosphere or other fluids located outside of the housing can enter through the frusto-conical opening between the primary ring and the shaft to cool the seal rings during shaft rotation. In a preferred embodiment, a drive collar disposed adjacent the primary ring and attached to the shaft includes a series of cantilever projection portions which rotate in the atmosphere outside the housing to circulate the atmosphere into the frusto-conical space between the beveled inner diameter of the stationary mating ring to provide a fan blade effect.
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