Fan assembly

Details Fan assembly Fan assembly

1978-04-17

1980-04-08

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Reverse curve surface

416132R, 416235, F04D 2938

Patent

active

041970578

ABSTRACT:
The fan assembly for a motor vehicle includes a plurality of radially extending blades each having a first rearwardly facing concave curvature extending along the entire length of the blade adjacent the leading edge and a forwardly facing concave curvature at the outer end of the blade adjacent the trailing edge to increase the cooling efficiency of the fan and decrease the noise produced during operation.

REFERENCES:
patent: 152973 (1874-07-01), Cross
patent: 528253 (1894-10-01), Jay
patent: 535271 (1895-03-01), Armstrong
patent: 1161926 (1915-11-01), Criqui
patent: 1506937 (1924-09-01), Miller
patent: 2581873 (1952-01-01), Morrison
patent: 3514215 (1970-05-01), Williams
patent: 3584969 (1971-06-01), Aiki et al.
patent: 3751181 (1973-08-01), Hayashi

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