Ducted fan

Details Ducted fan Ducted fan

1992-05-21

1994-02-22

Kwon, John T.

Rotary kinetic fluid motors or pumps

With separating means or guard for solid matter in working...

415181, 4152112, 416 63, 416247R, F04D 2970

Patent

active

RE0345512

ABSTRACT:
A ducted fan including a funnel-shaped duct positioned upstream of the impeller and connected to a base, an outer cowling concentrically positioned downstream and attached to said duct through a series of ribs, an inner cowling positioned inside the outer cowling and surrounding the impeller and a circular grill attached to the discharge end of the inner cowling. The grill including a center hub and a series of arcuate-shaped ribs extending outwardly from the hub and having a constant curvature of less diameter than the outside radius of the grill whereby the maximum lateral spacing between the ribs is at a radius inboard from the outside radius of the grill.

REFERENCES:
patent: 1062258 (1913-05-01), Schlotter
patent: 2100994 (1937-11-01), Cohen
patent: 2154313 (1939-04-01), McMahan
patent: 2169232 (1939-08-01), Flanders
patent: 2287822 (1942-06-01), Odor et al.
patent: 2330907 (1943-10-01), Odor et al.
patent: 2554600 (1951-05-01), Sutton
patent: 2554601 (1951-05-01), Sutton
patent: 2554602 (1951-05-01), Sutton
patent: 2652974 (1953-09-01), Fettel
patent: 3173478 (1965-03-01), Maycen
patent: 3620644 (1971-11-01), McLarty
patent: 3883264 (1975-05-01), Rao
patent: 4140433 (1979-02-01), Eckel
patent: 4189281 (1980-02-01), Katagiri et al.
patent: 4657483 (1987-04-01), Bede

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