| 摘要 |
The invention relates to a low-temperature coolant cooler, for the indirect charge-air cooling on an internal combustion engine, with a number of flat tubes, through which 700 to 1,800 litres per hour of coolant flow during operation, which open out in coolant collectors ( 4,8 ) and air guide devices, in particular, air guide fins are arranged between the flat tubes around which charge air for cooling flows. In order to guarantee a constant cooling power over a large operating range of coolant throughput, said low-temperature coolant cooler comprises the following features: a) the flat tubes have a depth ( 23 ) of less than or equal to 20 millimetres, b) the coolant flowing through the flat tubes is deflected a maximum of two times in the collectors ( 4, 8 ) and c) the flat tubes are provided with internal turbulence generating devices. |
