Exhaust Gas Recirculation (EGR) Cooling
Up to 20% of the exhaust gas is cooled and returned to the engine. This leads to a lower 02 concentration and lower in–cylinder temperatures.
For diesel engines, EGR cooling can significantly reduce exhaust emissions.
For gasoline engines, the main advantage of EGR cooling is a reduction of fuel consumption by reducing fuel enrichment in real driving conditions.
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