Straw chopper with fan having enhanced air flow in an...

A - Human Necessities – 01 – F

Patent

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A01F 29/09 (2010.01) A01F 12/40 (2006.01) A01F 29/01 (2006.01)

Patent

CA 2554178

A straw chopper for an agricultural harvesting unit includes a housing, and a rotor carried by the housing. The rotor includes a center chopping section and a pair of fans respectively positioned at longitudinally outboard ends of the center chopping section. Each fan includes a hub rotatable in a direction of rotation, and a plurality of fan blades connected with the hub at a plurality of angularly spaced locations about the hub. Each fan blade has a generally U-shaped portion with a rear wall and a pair of side walls extending from the rear wall in the direction of rotation.

Un broyeur de paille pour une moissonneuse-batteuse comprend un logement et un rotor porté par le logement. Le rotor comprend une section de hachage centrale et une paire de ventilateurs positionnés respectivement aux extrémités externes longitudinalement de la section de hachage centrale. Chaque ventilateur comprend un moyeu pivotant dans une direction de rotation, et plusieurs pales de ventilateur connectées au moyeu à plusieurs emplacements espacés de manière angulaire autour du moyeu. Chaque pale de ventilateur est muni généralement d'une partie en forme de U avec une paroi arrière et une paire de parois latérales se prolongeant à partir de la paroi arrière dans la direction de rotation.

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