发明名称 |
HYDRODYNAMIC BEARING ASSEMBLIES, AND HYDRODYNAMIC BEARING APPARATUSES AND MOTOR ASSEMBLIES USING SAME |
摘要 |
<p>Bearing assemblies and apparatuses are disclosed. Such bearing assemblies may be employed in bearing apparatuses for use in downhole motors of a subterranean drilling system or other mechanical systems. In an embodiment of the present invention, a bearing apparatus includes a first bearing assembly including a first substantially continuous polycrystalline diamond bearing surface defining an annular surface, and a second bearing assembly including a second substantially continuous polycrystalline diamond bearing surface defining an annular surface. The second substantially continuous polycrystalline diamond bearing surface generally opposes the first substantially continuous polycrystalline diamond bearing surface.</p> |
申请公布号 |
EP2198108(B1) |
申请公布日期 |
2012.06.27 |
申请号 |
EP20080840665 |
申请日期 |
2008.09.22 |
申请人 |
US SYNTHETIC CORPORATION |
发明人 |
COOLEY, CRAIG H.;SEXTON, TIMOTHY N. |
分类号 |
E21B4/00;E21B10/22;F16C17/02;F16C17/04;F16C33/10;F16C33/26 |
主分类号 |
E21B4/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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