| 摘要 |
A waste heat recovery system of an internal combustion engine, in which the amount of regenerative energy transmitted to the internal combustion engine is increased with a simple mechanism. A controller of the waste heat recovery system of an internal combustion engine has at least determination means that makes a determination as to whether it is necessary to increase the pressure of heat-transfer media in a heat exchanger, on the basis of the pressure detected by the high-pressure sensor. When the determination means determines that it is necessary to increase the pressure in the heat exchanger, the controller causes a flow-rate regulating valve (506) to start regulating the flow rate of the heat-transfer media while leaving the pump working. The controller causes the flow-rate regulating valve to continue the regulation at least until the determination means determines that it is not necessary to increase the pressure in the heat exchanger, and then terminates the regulation.
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