| 摘要 |
An internal combustion engine 10 comprising an engine coolant circuit 20 and an exhaust gas reÂcirculation (EGR) circuit 40, wherein the EGR circuit 40 comprises a first heat exchanger 33 and an auxiliary heat exchanger 42 which may exchange heat with an additional coolant circuit, and wherein the engine coolant circuit 20 comprises an electrically controlled valve 21 having an inlet 22 connected with a coolant outlet 14 of the engine 10, a first outlet 23 connected with a coolant inlet 15 of the engine 10 via a first line 24 and an engine coolant radiator 30, and a second outlet 25 connected with the coolant inlet 15 via a second line 26 which bypasses the first line 24 and radiator 30, and in which the first heat exchanger 33 is located, so as to allow an heat exchange between the coolant and the exhaust gas. Additionally a temperature parameter may be monitored and used to adjust the flow rate of the coolant routed to the first heat exchanger. |
