HOLE DRILLING MACHINE Russian patent published in 2001 - IPC

Abstract RU 2166057 C2

FIELD: drilling of holes in hard rocks, percussion- rotary drilling. SUBSTANCE: according to invention hydraulic striker is connected to slush pump which sets pulse cyclic feed of flushing fluid ensuring low-frequency technology of percussion-rotary drilling with self-adjustment of energy of shock at great depths with reduction of vibration loads. EFFECT: enhanced speed of driving of deep holes in hard rocks. 1 cl, 4 dwg

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RU 2 166 057 C2

Authors

Novikov V.V.

Trukhanov V.M.

Bezrukov B.I.

Osadchij M.L.

Kozubov A.G.

Dates

2001-04-27—Published

1999-03-09—Filed