AXIAL-FLOW FAN Russian patent published in 1994 - IPC

Abstract RU 2015417 C1

FIELD: fan making. SUBSTANCE: axial-flow fan has body with intake and pressure spaces, impeller with blades installed in body. Blades are provided with centrifugal ducts which inlet holes are hydraulically coupled with intake space and which outlet holes communicate with pressure space. Body is fitted with rotary and ring ducts intercommunicating in sequence. The latter is arranged concentrically on body. Circular slit is made in zone of outlet holes of centrifugal ducts of blades. Space of rotary and ring ducts communicates with ducts of blades by means of slit. EFFECT: enhanced efficiency and reliability of fan. 1 dwg

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RU 2 015 417 C1

Authors

Sheremet P.Z.

Dates

1994-06-30—Published

1991-05-05—Filed