Door assembly for an axial-flow combine

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

1991-03-21

1992-09-08

Melius, Terry Lee

Crop threshing or separating

Threshing

Axial flow through threshing section

460 68, 460119, A01F 1210

Patent

active

051454610

ABSTRACT:
A door assembly for an axial-flow combine having a crop receiving and generally tubular rotor casting defining an elongated axis, a rotor coaxially disposed within the casing, and a vaned impeller arranged at a forward end of the rotor. The door assembly extends across and at least partially closes a forward open end of the casing. At least a portion of the door assembly has a surface configuration extending circumferentially about its outermost edge for positively moving crop material axially rearward through the rotor casing to reduce crop material repeat on the downward rotational direction side and improving endwind efficiency.

REFERENCES:
patent: 3827443 (1974-08-01), Drayer
patent: 4489733 (1984-12-01), Underwood
patent: 4665929 (1987-05-01), Helm
patent: 4900290 (1990-02-01), Tanis

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