Shroud arrangement for engine cooling fan

Details Shroud arrangement for engine cooling fan Shroud arrangement for engine cooling fan

1980-03-10

1982-05-18

Feinberg, Craig R.

Internal-combustion engines

Cooling

Devices for cooling liquid by air flow

415DIG1, 165 51, F01P 710

Patent

active

043299466

ABSTRACT:
A bladed fan has an inlet shroud formed with a bell-mouthed inlet section which extends to an annular skirt portion affixed to the tips of the blades of the fan. The fan and the shroud are immersed within a shroud fixed to an engine cooling radiator. This fixed shroud has an ejector section that extends to or beyond the rotating shroud and fan blading. The bell-mouthed inlet section has sufficient arc to prevent separation so that the fan operates at high efficiency and discharges air outwardly therefrom including the blockage of the clearance between the two shrouds to thereby effectively reduce air recirculation.

REFERENCES:
patent: 2186837 (1940-01-01), McMahan
patent: 3237614 (1966-03-01), Bentz
patent: 3621822 (1971-11-01), Oster
patent: 3842902 (1974-10-01), Poslusny
patent: 3937192 (1976-02-01), Longhouse
patent: 4116269 (1978-09-01), Ikeda
patent: 4181172 (1980-01-01), Longhouse

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