GRAIN CLEANING MACHINE Russian patent published in 2000 - IPC

FIELD: agriculture. SUBSTANCE: grain cleaning machine has two sieve shoes, grain material charging device, upstream and downstream aspiration channels, fan, and settling chambers. Downstream aspiration channel has juxtaposed devices for feeding grain material into this channel. Gap between grain feeding members is chosen so as to provide division of thick grain layer into two flows without interference between these layers in the process of cleaning. Such arrangement of grain feeding members of grain charging device allows grain to be fed into downstream channel at increased specific rates. EFFECT: simplified construction and improved quality of cleaned grain. 3 dwg