| 摘要 |
PROBLEM TO BE SOLVED: To provide a waste heat utilization device for an internal combustion engine that can early exhibit performance of a recovery system at cold start of the internal combustion engine.SOLUTION: A waste heat utilization device (5) for an internal combustion engine includes: a recovery system (40) for recovering energy from working fluid; a first boiling device (20) for converting liquid working fluid into gaseous working fluid by using waste heat from the internal combustion engine (10); a second boiling device (30) that has heat capacity smaller than that of the first boiling device and converts liquid working fluid into gaseous working fluid by using waste heat from the internal combustion engine; a passage (60a) for supplying gaseous working fluid discharged from the first boiling device to the second boiling device; a passage (60b) for supplying gaseous working fluid discharged from the second boiling device to the recovery system; and passages (50a, 50b) for supplying liquid working fluid discharged from the recovery system to the first boiling device and the second boiling device. |
