| 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. |
