Radial flow fan

Details Radial flow fan Radial flow fan

1998-04-22

2000-10-31

Ryznic, John E.

Fluid reaction surfaces (i.e., impellers)

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

Radially extending web or end plate

B23H 116

Patent

active

061392731

ABSTRACT:
A radial flow fan wheel has a longitudinal axis and consists of an annular member and a plurality of first and second blade members. The first and second blade members depend from the annular member substantially parallel to the axis of the first blade members being disposed on a first pitch circle and the second blade member being disposed on a second pitch circle which has a radius less than a radius of the first pitch circle.

REFERENCES:
patent: Re13200 (1911-02-01), Capell
patent: 588513 (1897-08-01), Ward
patent: 809711 (1906-01-01), Maier
patent: 912362 (1909-02-01), Capell
patent: 991134 (1911-05-01), Capell
patent: 1174938 (1916-03-01), Montgomery
patent: 1471141 (1923-10-01), Capell
patent: 2065716 (1936-12-01), Leonard
patent: 2217231 (1940-10-01), Morse
patent: 4900228 (1990-02-01), Yapp
patent: 4936288 (1990-06-01), Lazard
patent: 5279396 (1994-01-01), Estaque et al.
patent: 5478205 (1995-12-01), Chou et al.

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