GRAIN COMBINE Russian patent published in 1999 - IPC

FIELD: agricultural engineering. SUBSTANCE: grain combine has rotor and perforated housing. Grain and straw heap is delivered into space between rotor and perforated housing for threshing. Straw is discharged through discharge window onto soil surface and chaff-and-grain mass is supplied into space of auger-type distributing mechanism. Underthreshed mass is fed to additional threshing apparatus. Grain and small fraction of chaff fall through openings extending through the whole length of perforated housing of auger-type mechanism and are further delivered in separating chamber. Chaff is directed by air flow to soil surface and grain mass falls by gravity into grain sack and is transferred through elevator into hopper. EFFECT: increased efficiency, reduced grain loss and improved threshing quality. 4 cl, 2 dwg