Patent ID: 6155042
Filing Date: 2000-12-05
Classification: F01N,F02M,Y02A,Y02T

Abstract:
An exhaust gas recirculation line for automobile internal combustion engines, comprising a catalytic converter, recycling means for recycling the exhaust gases and heat recovery means for recovering heat from the exhaust gases, said recirculation line further comprising:a heat exchanger between the exhaust gases and a cooling fluid, disposed between the engine and the catalytic converter, in series with restriction means, the restriction means being downstream of the heat exchanger and arranged to create a back pressure;a diversion for the heat exchanger and the restriction means and selection means for selectively directing the exhaust gases into the diversion or into the heat exchanger;a recycling pipe to recycle the exhaust gases, connected at a first end between the heat exchanger and the restriction means and at a second end to an air intake pipe admitting air into the engine; andregulating means for regulating the proportion of recycled exhaust gases in the recycling pipe.