Nozzle for rotary bit

作者: Mahlon D. Dennis

DOI:

关键词: Electrical conduitNozzleLongitudinal axisBit (horse)Drilling fluidMechanical engineeringDrill bitEngineering

摘要: A rotary drill bit comprises a body carrying plurality of cutting elements and main conduit for conducting drilling fluid. nozzle bodies is rotatably seated in bores the body. Each includes passages extending therethrough fluid such manner that exiting causes to rotate about its longitudinal axis. The thus distributed wider pattern.

参考文章(9)
Robert F. Evans, Rock bit circulation nozzle ,(1986)
Harold Tummel, Fluid-jet drill ,(1978)
Wassel Eugene S, Cameron Harry M, Drill bit with driven auxiliary bit ,(1957)
Bernhard K Haffner, Harry M Cameron, Diamond drill bit ,(1957)