The utility model belongs to the technical field of engine heat dissipation, and discloses an
electromagnetic clutch reversing fan for an engine, the
electromagnetic clutch reversing fan comprises a reversing fan body, a belt
pulley, a
clutch mechanism and a bracket, the reversing fan body comprises a reversing mechanism and a plurality of fan blades arranged on the
peripheral side of the reversing mechanism, and the reversing mechanism can adjust the angles of the fan blades. The belt
pulley and the reversing mechanism are coaxially arranged, the
clutch mechanism comprises an iron core and a coil which are arranged on the belt
pulley, and when the coil is powered on, the iron core can generate magnetic attraction force towards the belt pulley on the reversing mechanism so that the reversing mechanism can abut against the belt pulley to rotate along with the belt pulley. The bracket penetrates through the belt pulley and extends into the reversing mechanism to support the belt pulley and the reversing mechanism, so that
oil consumption is reduced when an engine is started or the temperature is low, the
utilization rate of output power of the engine is improved, meanwhile, the situation that a
transmission belt is prone to fatigue fracture due to instant
impact is avoided, and the service life of the
transmission belt is prolonged. And the reliability of the engine is further ensured.