Floating seal ring
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United States of America Patent
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-
Apr 5, 1994
Issued Date -
N/A
app pub date -
Oct 23, 1992
filing date -
Dec 20, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A floating seal ring is disposed within a retainer ring encircling a shaft which extends through the retainer ring. The seal ring is permitted to float radially with respect to the shaft but is retained axially with respect to the shaft. A pin protrudes from the seal ring into a bore in the retainer ring to preclude rotational movement of the seal ring relative to the shaft. The seal ring has an inner diameter which is greater at one end thereof than at the other end thereof so that fluid flow through an annular clearance between the seal ring and the shaft is accelerated. In one embodiment, the seal ring has an annular inner surface that is tapered. In another embodiment, the seal ring has an annular inner surface that is stepped.
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