| 摘要 |
The invention is intended, especially in the case of high-revving engines with turbochargers, to cool the compressed, hot charge air generated by the charge air turbine more strongly than occurs in radiators with airstream, the more strongly cooled charge air preventing self-ignition of the quantity of fuel fed to the cylinders earlier and more reliably and the increased quantity of cooling air passing by way of an air pressure fan, the fan impeller of which is fixed without any additional drive to the common turbine shaft between exhaust turbine and charge air turbine and rotates with the turbine shaft (n= 1,000,000 rpm), so that, for identical cooling rates, the cooling system with air pressure fan cooling can be designed with smaller dimensions than a cooling system with airstream cooling, thereby leading to fuel saving.
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