Combine harvester with spreader fans and method of spreading

A - Human Necessities – 01 – D

Patent

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Details

A01D 41/12 (2006.01)

Patent

CA 2684937

The present invention relates to a combine harvester (1) comprising a straw chopper (2) having an inlet for unchopped straw, an outlet (21) for chopped straw in an essentially horizontal direction, and a spreader fan (8),connected downstream of the outlet (21) of the straw chopper (2) and having an essentially horizontal plane of rotation, for spreading the chopped straw over a ground surface (9). The combine harvester (1) further comprises a guide member (13), which is arranged to deflect at least a part of the stream of chopped straw material to an axial intake (20) of the spreader fan (8) such that said part of chopped straw material meets the blades (16) of the spreader fan (8) in the direction of transport of the chopped straw material through the spreader fan (8) at an acute angle (a) relative to the plane of rotation of the spreader fan (8). Said part of the stream of chopped straw material thereby contributes to the material movement through the spreader fan (8).

La présente invention concerne une moissonneuse-batteuse (1) équipée d'un hache-paille (2) comportant un orifice d'entrée pour la paille non hachée, un orifice de sortie (21) pour la paille hachée, placé dans une direction sensiblement horizontale, et un épandeur (8), relié en aval de l'orifice de sortie (21) du hache-paille (2) et présentant un plan de rotation sensiblement horizontal, pour l'épandage de la paille hachée sur une surface du sol (9). La moissonneuse-batteuse (1) est en outre équipée d'un élément de guidage (13), qui est disposé pour dévier au moins une partie du jet de matière de paille hachée vers un orifice d'admission axial (20) de l'épandeur (8), de telle sorte que ladite partie de matière de paille hachée rencontre les disques (16) de l'épandeur (8) dans la direction de transport de la matière de paille hachée à travers l'épandeur (8), suivant un angle aigu (a) par rapport au plan de rotation de l'épandeur (8). Ladite partie de jet de paille hachée contribue de ce fait au mouvement de la matière à travers l'épandeur (8).

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