Patent ID: 8327634

Claim:
An exhaust heat recovery system, comprising: an exhaust heat exchanger that is communicated with a heat source through an exhaust gas channel, and that recovers exhaust heat to a coolant; and heat transfer restriction section for restraining released heat from the heat source from reaching the exhaust heat exchanger, which is provided on an exhaust gas pipe that forms the exhaust gas channel and that is provided between the heat source and the exhaust heat exchanger, wherein the heat transfer restriction section is a heat release member that extends out from an outer surface of the exhaust gas pipe, wherein the heat transfer restriction section takes a heat-radiating posture at which the heat transfer restriction section extends out from the outer surface of the exhaust gas pipe in a case where an ambient temperature is higher than or equal to a first predetermined temperature, whereas the heat transfer restriction section takes a heat radiating-restricting posture at which the heat transfer restriction section is closer to the exhaust gas pipe, the heat source or the exhaust heat exchanger than when the heat transfer restriction section takes the heat-radiating posture in a case where the ambient temperature is below a second predetermined temperature that is lower than or equal to the first predetermined temperature.