Cooling axial flow fan with reduced noise levels caused by swept

Details Cooling axial flow fan with reduced noise levels caused by swept Cooling axial flow fan with reduced noise levels caused by swept

1995-11-22

1999-10-05

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

416242, 416DIG2, 416DIG5, F04D 2936

Patent

active

059612894

ABSTRACT:
An axial fan for a cooling blower of a vehicle engine has fins with leading and trailing edges, and aeroacoustic optimization is provided by each of the leading edges and trailing edges having a strong forward sweep followed by a strong backward sweep in the manner of a bird's wing or by a straight forward sweeps followed by a strong backward sweep.

REFERENCES:
patent: 4358245 (1982-11-01), Gray
patent: 4548548 (1985-10-01), Gray, III
patent: 4569631 (1986-02-01), Gray, III
patent: 4915588 (1990-04-01), Brackett
patent: 5064345 (1991-11-01), Kimball
patent: 5244347 (1993-09-01), Gallivan et al.
patent: 5273400 (1993-12-01), Amr

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