Axial fan for a radiator of a motor vehicle engine

Details Axial fan for a radiator of a motor vehicle engine Axial fan for a radiator of a motor vehicle engine

1995-12-14

1997-07-08

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Having clutch or brake means

416189, 416244R, F04D 2934

Patent

active

056454015

ABSTRACT:
An axial fan is known whose fan hub is fastened by means of a fan flange on a clutch housing of a fluid friction clutch while leaving an annular gap for a partial flow assigned to the cooling fins of the clutch housing. In the case of such axial fans, swirls occur in the hub area which reduce the efficiency of the fan. According to the invention, for achieving an improved efficiency, an air guiding ring is provided on the fan hub on an inlet side relating to a flow direction of the venting flow, which air guiding ring has a curved profile which is directed axially opposite to the flow direction and is curved radially to the inside.

REFERENCES:
patent: 3622249 (1971-11-01), Hayashi et al.
patent: 3642382 (1972-02-01), Hayashi
patent: 4169693 (1979-10-01), Brubaker
patent: 4487551 (1984-12-01), Mizutani et al.
patent: 5193981 (1993-03-01), Scheidel et al.
patent: 5236306 (1993-08-01), Hozak

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