发明授权
- 专利标题： Earth boring bit with tilted hydrodynamic thrust bearing
- 专利标题（中）： 具有倾斜流体动力推力轴承的地球钻头
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申请号： US11248623申请日： 2005-10-12
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公开(公告)号： US07465096B2公开(公告)日： 2008-12-16
- 发明人: Aaron J. Dick , Chih Lin
- 申请人： Aaron J. Dick , Chih Lin
- 申请人地址： US TX Houston
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： US TX Houston
- 代理机构： Bracewell & Giuliani LLP
- 主分类号： F16C33/00
- IPC分类号： F16C33/00 ; F16C33/66 ; E21B10/22
摘要：
An earth boring bit has thrust faces with one of the thrust faces being at least partially tilted relative to the other. The bit has a cone rotatably mounted to a bearing pin of the bit body. The thrust faces are in the cone and on an end of the bearing pin. One of the thrust faces is completely flat and perpendicular to the axis of the bearing pin. The other thrust face has a tilted portion that is at a skewed angle relative to the axis. The tilted portion creates converging and diverging zones between the thrust faces.
公开/授权文献
- US20070081747A1 Earth boring bit with tilted hydrodynamic thrust bearing 公开/授权日：2007-04-12
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