| 摘要 |
A cooling system is for an industrial truck, particularly a fork lift truck (2, figure 1), having an internal combustion engine 10 and a power electronics unit 16. The cooling system comprises: an engine cooling circuit 33; an electronics cooling circuit 41; and a compensating reservoir 37 for a coolant. A suction feed connection 38 of the compensating reservoir is connected with an engine suction feed line 39 of the engine cooling circuit and with an electronics cooling circuit feed line 43 of the electronics cooling circuit. The reservoir is further connected with the engine and electronics cooling circuits by one or more engine cooling circuit vent lines 40 and one or more electronics cooling circuit vent lines 44, respectively. A throttling device is arranged in at least one of the engine or electronics suction feed lines or the engine or electronics vent lines to limit the volume of flow of coolant. Ideally, the throttling device comprises an orifice plate 45 having a reduced line cross-section. The combustion engine may drive a generator (12, figure 1) feeding a direct current voltage circuit to drive an electronic propulsion motor (13, figure 1) of a fork lift truck.
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