Flow bearing for high pressure applications

Details Flow bearing for high pressure applications Flow bearing for high pressure applications

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 33/10 (2006.01) E21B 21/10 (2006.01) F16N 23/00 (2006.01)

Patent

CA 2622362

A flow bearing includes a first tubular body and a second tubular body. The first tubular body has a first outer surface and a first inner surface defining a first bore. A first bearing surface is positioned on the first inner surface. The second tubular body has a second outer surface and a second inner surface defining a second bore. A second bearing surface is positioned on the second inner surface. The second tubular body is concentrically disposed within the first bore of the first tubular body, with the first inner surface facing the second outer surface. The first bearing surface and the second bearing surface are engaged in close fitting relation and define a mud lubricated flow gap. A metering valve is positioned one of upstream or downstream of the flow gap to meter flow through the flow gap.

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