| 摘要 |
Internal combustion engine 1 with an intake manifold 2, an exhaust manifold 3, a lubricating circuit 4 and an exhaust gas recirculation system 5, EGR, where the EGR system comprises a main conduit 50 connecting the exhaust and intake manifolds, a cooler 51, a bypass conduit 52 to bypass the cooler and a first valve 53 for alternatively routing the exhaust gas through the cooler or the bypass conduit, where there is a heat exchanger 6 in the bypass conduit that is connected to the lubricating circuit. A second valve 62, which may be a flow rate control valve, may be located in a conduit 60 connecting the heat exchanger with the lubricating circuit, where both of the valves are connected to an engine control unit, ECU. A method for operating an internal combustion engine is also claimed. |
