REMOVING DEVICE FOR DUST ADHERED TO COOLING AIR DUST-PREVENTING DEVICE OF WORKING MACHINE DRIVING WATER COOLED ENGINE

摘要

PURPOSE:To improve the ability of removing adhered dust in a device where the dust adhered to a cooling air dust-preventing device is blown off and removed by a dust-preventing fan, by communicating an auxiliary dust preventing blowing means with an inner space of a dust preventing blowing means, and directly facing the dust- preventing fan to the dust-preventing blowing means. CONSTITUTION:In the dust-preventing device of the title, cooling air 2 for a water cooled engine 1 which drives a working machine 44 is blown by a cooling fan 3 and introduced to a dust-preventing blowing means 4, a radiator 5 and the engine 1. Dust 7 adhered to the outer surface of the dust-preventing blowing means 4 is removed by dust removing air 8 from a dust-removing fan 6. An inner space of an auxiliary dust-preventing means 10 provided on a part which hardly adorbs the external dust 7 compared to the dust-preventing blowing means 4 is communicated with an inner space of the dust-preventing blowing means 4, while the dust-preventing fan 6 is directly faced to the dust-preventing blowing means 4. When the additional operations intermittently performed during driving of the working machine 44 are detected by a detecting means 45, the cooling fan 3 is stopped, and the dust-removing fan 6 is started for removing the dust.