| 摘要 |
PROBLEM TO BE SOLVED: To simplify a structure of an engine cooling device of an agricultural working vehicle, and to reduce the cost. SOLUTION: An electromagnetic clutch 14 for turning on/off a cooling fan 15 upon driving of an engine 4 is provided in a transmission passage from the engine 4 to the cooling fan 15, an air amount detection means 26 for detecting an amount of cooling air passing through an intake air net 17 is provided, and the electromagnetic clutch 14 is turned on/off in relation to detection of magnitude of the air amount of the air amount detection means 26. When the cooling fan 15 is stopped, dust of the intake air net 17 is shaken off with the usage of vibration of the intake air net 17 by rotation of the engine 4 and vehicle traveling and the non-suction function of dust by intake stop of the cooling fan 15. COPYRIGHT: (C)2007,JPO&INPIT
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