发明名称 |
Diamond bearing assembly |
摘要 |
The invention concerns a diamond thrust bearing assembly for a downhole motor. The assembly (10) includes at least one set of opposing bearing rings (20, 22), each of which has an annular support element (24, 30) and a plurality of PCD compacts (48, 62) carried in circumferentially spaced relationship by the support element. The PCD compacts present opposing bearing surfaces (52, 66) with the bearing surfaces (66) of the compacts of one bearing ring in each set being circumferentially longer than the bearing surfaces (52) of the compacts of the other bearing ring of the set.
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申请公布号 |
US5364192(A) |
申请公布日期 |
1994.11.15 |
申请号 |
US19930142041 |
申请日期 |
1993.10.28 |
申请人 |
DAMM, OLIVER F. R. A.;TANK, KLAUS |
发明人 |
DAMM, OLIVER F. R. A.;TANK, KLAUS |
分类号 |
E21B4/00;F16C17/04;F16C33/26;(IPC1-7):F16C17/04 |
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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