HOPPER OF COMBINE HARVESTER WITH PNEUMATIC LOADING OF GRAIN BY INJECTION SYSTEM Russian patent published in 2011 - IPC A01F12/60 A01D41/12 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machine building and may be used in combine harvesters to move grain with injection pneumatic-transport system. Hopper of combine harvester includes supply material duct, main reservoir of hopper, additional settling chamber and discharge hatch, connected to intermediate partition. Upper bases of the main reservoir and settling chamber are connected by means of expanding closed air channel, having louvers at back wall. On upper base of the main hopper reservoir there are relief valves and cylindrical separator-unloader with diametre of at least six diametres of supply material duct. Spring-loaded reflector and rotary drum with hollow air-permeable cylinder are installed over upper base of settling chamber. On surface of cylinder at the angle to its generatrix there are plates fixed with teeth of needle shape, contacting with spring-loaded brush. Settling chamber has back wall, which is fixed to lower wall of closed air channel and interacts with air-permeable screen with the help of adjusting double-hinge traction rods.

EFFECT: pneumatic system provides for reliable feed of grain into hopper with high efficiency.

3 cl, 8 dwg