| 摘要 |
The train has a main cooling circuit (16) for an engine, with a heat exchanger (22). An exhaust gas recirculation system has a recirculation duct to connect exhaust gas and intake manifolds, and a heat exchanger (58) to cool re-circulated exhaust gas, where a heat transfer fluid circulates. A secondary cooling circuit (64) has a heat exchanger (66) to cool the fluid and an electric pump (68) to circulate fluid in the circuit (64). |
