HEAT RECOVERY SYSTEM IN AN EXHAUST SYSTEM

摘要

The invention relates to a system for recovering energy in an exhaust gas circuit (3) of a heat engine (1) of a vehicle, said system comprising an exhaust gas bypass duct (15) comprising a heat exchanger (18). An energy recovery system according to the invention is mainly characterised by the fact that the part of the exhaust circuit arranged downstream of the connection point (17) of the bypass duct (15) for connecting to said circuit (3) is provided with a valve (16) that can at least partially close the exhaust circuit (3), and the by-pass duct (15) comprises, at the outlet of the exchanger (18), a first pipeline (20) running into the admission circuit (2, 6) and a second pipeline (21) running into the exhaust circuit (3) downstream of the valve (16).