| 摘要 |
PROBLEM TO BE SOLVED: To provide a work vehicle prime mover part structure ensuring the high intake capacity of a radiator fan and high exhaust capacity of a dust exhaust fan, capable of suppressing engine overheat, and lower in the frequency of maintenance and inspection work.SOLUTION: A radiator fan (20) and a dust exhaust fan (30) are provided on the same axial center, a blade angle of a blade (30A) of the dust exhaust fan (30) is set opposite to a blade angle of a blade (20A) of the radiator fan (20), drive-state switching means (45) for switching the dust exhaust fan (30) to a stopped state when the radiator fan (20) is driven and switching the dust exhaust fan (30) to a driven state when the radiator fan (20) is stopped, and the drive-state switching means (45) is arranged adjacent to an inner side of a body of the fan arranged inside of the body which is either the radiator fan (20) or the dust exhaust fan (30). As a result, the object of the invention is attained. |
