Axial-flow fan

Details Axial-flow fan Axial-flow fan

1980-04-16

1983-02-15

Smith, Leonard E.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing with mounting means

417354, F04D 2508, F04D 2944

Patent

active

043738613

ABSTRACT:
An axial-flow fan is disclosed which comprises a fan wheel and a housing casing surrounding said fan wheel, the fan wheel having a hub with a diameter which is at least half as large as the inner diameter of the housing casing and wherein the housing casing is cylindrical in the axial central plane and is broadened at least toward the exhaust side by way of corner pockets into a square profile circumscribing the diameter of the fan wheel. The hub of the fan wheel is provided on the inlet side with an annular surface which extends approximately over one-third of the entire axial length of said hub and which has a conical configuration toward the end face.

REFERENCES:
patent: 2468723 (1949-04-01), Bartlett, Jr.
patent: 3128939 (1964-04-01), Szydlowski
patent: 3144201 (1964-08-01), Rundle
patent: 3294315 (1966-12-01), Stewart
patent: 3362627 (1968-01-01), Papst
patent: 3378192 (1968-04-01), Friese
patent: 3531221 (1970-09-01), Herberg et al.
patent: 4167376 (1979-09-01), Papst
patent: 4221546 (1980-09-01), Papst et al.

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