AXIAL-FLOW FAN FOR CLEANER OF GRAIN COMBINE

摘要

FIELD: agricultural engineering. ^ SUBSTANCE: axial-flow fan has casing with two equally sized working axial left-hand and right-hand rotary wheels disposed along edges of casing. Working wheels are mounted on fan shaft and offset inward of casing relative to casing sides. Blades of working wheels are provided on matrix-cone positioned with its base oriented upward and turned so that front face of blade is extending vertically in front and profile planes. Upper edge of blade is positioned in zone of intersection of matrix-cone base with its generatrix, and blade axis is offset from front face. ^ EFFECT: increased efficiency and improved air distribution in working zone of cleaner due to constructive parameters of fan. ^ 4 dwg