Multi-functional fan system of combined harvester
2011
This invention discloses a multi-functional fan system of a combined harvester, and belongs to the technical field of agricultural machinery. The fan system comprises a diesel engine and a cleaning fan which are arranged on the combined harvester; the diesel engine has a circulation cooling channel from a cooling water tank; a volute casing of the cleaning fan has a water interlayer; the water outlet of the circulation cooling channel is connected with the inlet of the water interlayer; and the outlet of the water interlayer is connected with the water inlet of the circulation cooling channel. Thus, the cooling water in the water tank enters the cooling channel of the diesel engine and then becomes high-temperature hot water after cooling the diesel engine; the hot water flows through the water interlayer of the cleaning fan volute casing. Because of large surface area and high internal air speed of the volute casing of cleaning fan, the hot water is fully cooled with the help of air flow in the cleaning fan and then flows back to the water tank to form a circulation cooling system; the water temperature of the cooling water is not too high, so the heat emission effect of the diesel engine is guaranteed and the combined harvester can stably work for a long time.
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