Bearing assembly incorporating shield ring precluding erosion
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United States of America Patent
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Mar 12, 1996
Grant Date -
N/A
app pub date -
Dec 17, 1993
filing date -
Dec 17, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A mud motor bearing assembly is defined by and constructed with a support or base ring having an exposed upper or planar face. On the planar face, a number of PCD disc are attached to define a bearing surface at a common plane. The improved bearing assembly further includes a separate ring or an integral lip serving as a deflector ring brazed to the face of the support ring. The brazed deflector ring alters the fluid flow patterns of drilling fluid in the bearing assembly to reduce support ring erosion.
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