With thresher axially in front of the threshing and separating drum arranged at the inlet funnel

摘要

An axial flow combine of the type embodying threshing and separating means in the form of a cylindrical casing within which a rotor operates and which defines a threshing region and a separating region. A funnel-like frusto-conical extension at the forward end of the casing is provided with internal helical transport fins and cooperates with a vaned impeller on the rotor to move the crop material rearwardly into the threshing region, the outer edges of the impeller vanes sweeping around the frusto-conical wall of the extension in close coextensive proximity thereto.