A jet nozzle (60) is provided for drilling holes through the earth. The nozz le (60) may include orifices (68) for discharging fluid to drive the nozzle forward and includes a disk (70) or other device having orifices (80) to produce a swirling motion to fluid in the body of the nozzle. Swirling fluid is discharged from a front orifice (74) and an extension (76) is placed forward of the front orifice to confine the swirling fluid in a radial direction.
申请公布号
CA2480249(C)
申请公布日期
2009.09.15
申请号
CA20032480249
申请日期
2003.04.09
申请人
BUCKMAN JET DRILLING, INC.
发明人
BUCKMAN, WILLIAM G., SR.;DOTSON, THOMAS L.;MCDANIELS, MICHAEL D.;BELL, WENDELL S.