MOTOR VEHICLE HEAT TRANSFER SYSTEM

The invention relates to a motor vehicle heat transfer system with a closed circuit for a working medium. The motor vehicle heat transfer system comprises an exhaust gas duct (3) for conducting exhaust gas which is discharged from an internal combustion engine of the motor vehicle. An evaporator (1) contacts the exhaust gas duct (3). In the evaporator (1), the working medium is evaporated. According to the invention, the evaporator (1) comprises at least one evaporator cassette (4, 5), wherein the evaporator cassette (4, 5) has a housing and a capillary structure (8) arranged in the housing (7). The capillary structure (8) is formed by a porous plate body, preferably made from a sintered material.