发明名称 |
Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor |
摘要 |
A shrink-fit sleeve assembly comprising a bit body includes at least one sleeve port with a substantially tubular sleeve disposed therein and interferingly engaged therewith. The sleeve port includes an internal surface of substantially circular cross-section, and the tubular sleeve includes an internal nozzle port and an external surface of substantially circular cross-section. A lateral dimension of an external surface is equal to or greater than a first dimension at ambient temperature. A nozzle assembly and a method of manufacturing or retrofitting a drill bit are also disclosed.
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申请公布号 |
US7681668(B2) |
申请公布日期 |
2010.03.23 |
申请号 |
US20070731245 |
申请日期 |
2007.03.30 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
OXFORD JAMES ANDY;STEVENS JOHN H.;DUGGAN JAMES L.;SMITH REDD H. |
分类号 |
E21B10/61 |
主分类号 |
E21B10/61 |
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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