| 摘要 |
PROBLEM TO BE SOLVED: To be able to cool EGR gas before sucked into an engine, while heating operating fluid before sucked into an expander.SOLUTION: A first EGR gas heat exchanger 51, a low-temperature heat source heat exchanger 53, and a second EGR gas heat exchanger 52 are connected in series between an outlet of a pump 40 and an inlet of an expander 20 in a coolant circulation circuit 11. In addition, the first EGR gas heat exchanger 51 is disposed at an upstream end in a flow direction of coolant from the outlet of the pump 40 toward the inlet of the expander 20, and the second EGR gas heat exchanger 52 is disposed at a downstream end in the flow direction of the coolant from the outlet of the pump 40 toward the inlet of the expander 20. |
