| 摘要 |
PROBLEM TO BE SOLVED: To efficiently recover waste heat, without impairing the cooling performance of an engine. SOLUTION: A storage tank 15, a first pump 4 and a three-way valve 5 are arranged on the upstream side of the engine of a refrigerant passage 3 possessed by a waste heat recovery device 1. The three-way valve 3 branches off from the refrigerant passage 3, and forms a first relief circuit together with a first relief passage 20 for returning a refrigerant discharged from the first pump 4 to the storage tank 15. A second pump 6, a second three-way valve 7, an evaporator 8, a superheater 9, a power regenerating part 10 and a condenser 14 are arranged in order from the near side in an engine body 2a on the downstream side of the engine body 2a. An exhaust pipe 16 pulled out of the engine body 2a is connected in order of the superheater 9 and the evaporator 8. The second three-way valve 7 branches off from the refrigerant passage 3, and forms a second relief circuit together with a second relief passage 22 for returning the refrigerant discharged from the second pump 6 to the upstream side of the engine body 2a. COPYRIGHT: (C)2009,JPO&INPIT
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