EJECTOR-TYPE FAN UNIT Russian patent published in 1999 - IPC

Abstract RU 2138648 C1

FIELD: mining industry. SUBSTANCE: unit is intended for ventilating systems of mine openings and systems of ventilation structures. Invention is aimed at increasing air flow rate by several times as compared with specified performance characteristics of fan. For this purpose main fan and additional fan are provided with nozzles. Nozzles are connected with outlet passages of fans by means of piping. Nozzles are installed coaxially with shell at clearance with walls of shell and for displacement along common axis. Fans are located in convenient site of mine opening. EFFECT: higher efficiency. 1 dwg

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RU 2 138 648 C1

Authors

Alymenko D.N.

Papulov L.M.

Minin V.V.

Alymenko N.I.

Krasnoshtejn A.E.

Juzhanin A.S.

Dates

1999-09-27—Published

1998-03-19—Filed