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2 057 910

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C1

(51)

IPC

(21) (22)

Application

93044537/03, 1993-09-09

(22)

Actual filing date

1993-09-09

(45)

Published

1996-04-10

(72)

Inventor

Abaltusov V.E.Polezhaev Ju.V.Mikhatulin D.S.Nemova T.N.Alekseenko N.N.Zima V.P.Rybasova N.L.

(73)

Holder

Abaltusov Viktor Evgen'Evich

GEAR TO PERFORATE HOLES Russian patent published in 1996 - IPC

Abstract RU 2057910 C1

FIELD: hole drilling. SUBSTANCE: gear to perforate holes includes source of working medium and housing. Housing houses nozzle unit. Source of working medium is manufactured in the form of set of solid fuel charges with various abrasive particles and is placed inside housing. Nozzles of nozzle unit are arranged on generatrix of side surface of nozzle unit in the amount of at least three in one horizontal section. Semi-opening angles of inlet β and outlet a parts of nozzle are within limits 50°<β<60°,, 3°<α<6°,. EFFECT: increased efficiency of hole perforation. 2 dwg

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RU 2 057 910 C1

Authors

Abaltusov V.E.

Polezhaev Ju.V.

Mikhatulin D.S.

Nemova T.N.

Alekseenko N.N.

Zima V.P.

Rybasova N.L.

Dates

1996-04-10—Published

1993-09-09—Filed

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