Invention Grant
US07681668B2 Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor
有权
用于钻头的收缩套筒组件，包括喷嘴组件及其方法
- Patent Title: Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor
- Patent Title (中): 用于钻头的收缩套筒组件，包括喷嘴组件及其方法
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Application No.: US11731245Application Date: 2007-03-30
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Publication No.: US07681668B2Publication Date: 2010-03-23
- Inventor: James Andy Oxford , John H. Stevens , James L. Duggan , Redd H. Smith
- Applicant: James Andy Oxford , John H. Stevens , James L. Duggan , Redd H. Smith
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: TraskBritt
- Main IPC: E21B10/61
- IPC: E21B10/61
Abstract:
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.
Public/Granted literature
- US20080236899A1 Shrink fit sleeve assembly for a drill bit, including nozzle assembly and method thereof Public/Granted day:2008-10-02
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