Ducted oscillatory blade fan

Details Ducted oscillatory blade fan Ducted oscillatory blade fan

1987-11-10

1989-05-30

Stout, Donald E.

Pumps

Processes

417322, 417410, 417436, 416 81, F04B 1900, F04B 3504

Patent

active

048346195

ABSTRACT:
A duct for use with an oscillating fan blade has a preferred height which is a function of the blade height and a preferred width which is related to the maximum excursion of the blade leading edge. The duct is positioned at a preferred gap distance which is related to a maximum blade excursion distance and the velocity of the blade. A duct for a twin blade fan and a single blade fan is disclosed.

REFERENCES:
patent: 2928409 (1960-03-01), Johnson et al.
patent: 3274410 (1966-09-01), Boivie
patent: 4063826 (1977-12-01), Riepe
patent: 4171852 (1979-10-01), Haentjens
patent: 4296417 (1981-10-01), Markham et al.
patent: 4498851 (1985-02-01), Kolm et al.
patent: 4519751 (1985-05-01), Beckman et al.
patent: 4595338 (1986-06-01), Kolm et al.
patent: 4648807 (1987-03-01), Tippetts et al.
"Solid State", p. 104, Computer & Electronics, Mar. 1983.

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