Swept back impeller blade for axial flow rotor

摘要

An apparatus for accepting unthrashed material that is being fed axially into the cylinder of an axially flow combine. The apparatus includes a three bladed impeller that when rotated generates a frustum of a cone with the larger end of the cone frustum being generated by the leading edges of the impeller blades. The leading edge of each impeller blade being swept back such that the outermost portion of the leading edge of the impeller blade trails a line radiating from the point on the rotor axis where the impeller blade originates from.