Abstract: One describes a rotor (1) for an exhaust-fan assembly (4) of an 5 agricultural machine, the rotor (1) comprising a central shaft (7), a first portion (31) provided with an inlet deflector (15) having a substantially elliptical profile, defining a tapered inlet end (26). The rotor, which is also provided with a set of blades (13), further comprises a second portion (29) provided with an outlet deflector (22) having a substantially elliptical profile, so that the 10 first and the second portions (31, 29) are associated to the central shaft (7). According to the invention, one provides a rotor that promotes efficient cleaning of harvested cane.

Abstract: The present invention relates to a rotor (90) applied to an extractor-fan assembly (80) for agricultural machines, especially for sugar-cane harvesters, the rotor (90) comprising a set of blades (1) fixed to a hub (2). Each of the blades (1) has such a construction that defines a root angle (3) that may range from 47 to 59 degrees, a medium angle (4) that may range from 53 to 69 degrees and a trailing angle (5) that may range from 66 to 78 degrees. Due to the construction angles of the blades (1), the air flow comes in contact with the rotor (9) smoothly, without any turbulence in its displacement, which results in high efficiency and efficacy of the extractor-fan assembly (80).

Abstract: One describes a rotor (1) for an exhaust-fan assembly (4) of an 5 agricultural machine, the rotor (1) comprising a central shaft (7), a first portion (31) provided with an inlet deflector (15) having a substantially elliptical profile, defining a tapered inlet end (26). The rotor, which is also provided with a set of blades (13), further comprises a second portion (29) provided with an outlet deflector (22) having a substantially elliptical profile, so that the 10 first and the second portions (31, 29) are associated to the central shaft (7). According to the invention, one provides a rotor that promotes efficient cleaning of harvested cane.

Abstract: The present invention relates to a rotor (90) applied to an extractor-fan assembly (80) for agricultural machines, especially for sugar-cane harvesters, the rotor (90) comprising a set of blades (1) fixed to a hub (2). Each of the blades (1) has such a construction that defines a root angle (3) that may range from 47 to 59 degrees, a medium angle (4) that may range from 53 to 69 degrees and a trailing angle (5) that may range from 66 to 78 degrees. Due to the construction angles of the blades (1), the air flow comes in contact with the rotor (9) smoothly, without any turbulence in its displacement, which results in high efficiency and efficacy of the extractor-fan assembly (80).