FIELD: machine building.
SUBSTANCE: invention relates to power plant cooling system. Mobile working machine, in particular in form of quarry truck or truck, comprises diesel-electric traction drive and cooling system. Mobile working machine comprises common cooling circuit for liquid coolant for parallel cooling of one or more components of power electronics and for cooling of one or more drive components in area of driving axle of vehicle. Components to be cooled in the region of the driving axle of the vehicle are one or more electric motors for driving the driving axle. Coolant circulation in cooling circuit is performed so that cooled components with higher need for cooling are cooled or washed first, and components with lower cooling demand are located in cooling circuit downstream. Components having higher cooling demand are one or more of power electronics components, and components having lower cooling demand are one or more of transmissions.
EFFECT: technical result is higher efficiency of cooling system of working machine.
6 cl, 6 dwg
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