Rotor assembly for an axial-flow combine

Details Rotor assembly for an axial-flow combine Rotor assembly for an axial-flow combine

1990-04-03

1991-01-22

Novosad, Stephen J.

Crop threshing or separating

Threshing

Axial flow through threshing section

460 68, 460 69, 460 70, 460 71, A01F 706, A01F 1218, A01F 1220

Patent

active

049867946

ABSTRACT:
An axial-flow combine with an improved rotor assembly which is configured to be less sensitive to crop material conditions. The rotor assembly includes a rotor casing with a rotor rotatably arranged therewithin. At its forward end, the rotor casing is provided with a transition section having a forward crop receiving end and an aft end. The rotor is provided with an impeller section which leads in a downstream direction to a threshing section. The impeller section of the rotor includes a plurality of impeller blades arranged within the transition section of the rotor assembly. A rearward end of each blade terminates upstream of the aft end of the transition section whereby allowing threshing instrumentalities on the threshing section of the rotor to extend into the transition section thereby extending the threshing area of the rotor thus enhancing crop material flow through the rotor assembly.

REFERENCES:
patent: 3572346 (1971-03-01), Knapp et al.
patent: 3827443 (1974-08-01), Drayer
patent: 3863643 (1975-02-01), DePauw
patent: 3964492 (1976-06-01), Crego et al.
patent: 3982549 (1976-09-01), DePauw et al.
patent: 4075823 (1978-02-01), Rowland-Hill
patent: 4177821 (1979-12-01), Peiler et al.
patent: 4178943 (1979-12-01), West
patent: 4291709 (1981-09-01), Weber et al.
patent: 4505279 (1985-03-01), Campbell et al.

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