GEAR FOR THERMAL POWER DRILLING Russian patent published in 2001 - IPC

Abstract RU 2166060 C1

FIELD: mining industry, equipment of drilling and expanding boreholes in hard rocks. SUBSTANCE: helical grooves in the form of dovetail are made in internal surface of narrowing nozzle in filter of gear and circular groove is located after inlet hole of narrowing nozzle. Slime collector is connected to lower part of circular groove. EFFECT: reduced energy consumption for generation of compressed air in process of thermal power drilling. 3 dwg

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RU 2 166 060 C1

Authors

Kobelev N.S.

Viktorov G.V.

Kobelev V.N.

Dates

2001-04-27—Published

1999-10-06—Filed