FIELD: mining.
SUBSTANCE: invention relates to devices intended for backwashing vibroexposure during well drilling. Pulsator-vibrator comprises housing, upper and lower adapters with through channel, in which crank and flap valve are fixed. Case is equipped with a flange, in which holes with radial and longitudinal sections are made. Changeover valve axis is installed with possibility of periodic opening and closing by flap valve of radial input parts of holes at circulation of flushing liquid, creating pulsations of liquid through nozzles installed in longitudinal output sections of holes.
EFFECT: higher efficiency of drilling.
1 cl, 3 dwg
| Title | Year | Author | Number |
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