Patent ID: 7877991

Claim:
An exhaust heat recovery device comprising: an evaporator evaporating working medium sealed thereinto by exhaust heat from an internal combustion engine; a condenser cooling the working medium evaporated at the evaporator, by coolant of the internal combustion engine; a communication portion communicating the evaporator with the condenser in an annular shape; an internal pressure operating valve being closed when a pressure of the working medium, corresponding to a first temperature of the coolant, is equal to or more than a predetermined pressure; and a temperature operating valve being closed when a temperature of the coolant is equal to or more than a second temperature higher than the first temperature when the pressure of the working medium is equal to or greater than the predetermined pressure, wherein the internal pressure operating valve and the temperature operating valve are disposed between a downstream side of the condenser and an upstream side of the evaporator in the communication portion.