METHOD AND DEVICE FOR CONTROLLING THE TEMPERATURE OF EXHAUST GAS FROM AN INTERNAL-COMBUSTION ENGINE FLOWING THROUGH A MEANS OF TREATING THE POLLUTANTS CONTAINED IN THIS GAS

摘要

The present invention relates to a method for controlling the temperature of exhaust gas circulating in an exhaust line (20) of an internal-combustion engine (10), said line comprising means (30) of treating the pollutants contained in this gas and heat exchange means (32) for cooling or heating said exhaust gas flowing through these pollutant treatment means. According to the invention, the method consists in using evaporator (38) of a fluid circulation closed circuit (34) as heat exchange means (32).