| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a combine harvester which prevents the abrasion of a belt for rotating a cooling fan, the non-change of the rotation rate of the cooling fan, and the deterioration in the cooling efficiency of the cooling fan. <P>SOLUTION: The combine harvester is characterized by disposing a cooling fan 28 between a radiator 29 and an engine 11, disposing a radiator cover 15 having a dust-preventing net 37 on the outside of the radiator 29, wherein the cooling fan 28 can normally or reversely be rotated by the driving force of the engine 11 through a fan stepless speed variator 33; the fan stepless speed variator 33 is disposed on the outside of the air-blasting range of the cooling fan 28; and the fan stepless speed variator 33 can be switched into a cooling state wherein the cooling fan 28 is normally rotated to blast air from the outside of the machine to the inside of the machine, or a dust-removing state wherein the cooling fan 28 is reversely rotated to blast the air from the inside of the machine to the outside of the machine. <P>COPYRIGHT: (C)2013,JPO&INPIT |
