NOVELTY - The device has a heat exchanger (1) and a set of heat exchange tubes (12) arranged parallel to an outer side of a peripheral surface (10) in an axial direction (7). A housing (2) is placed around the heat exchange tubes. An inner pipe (6) is connected with a front end (8) of an input (3). Guide elements (13) are placed between the heat exchange tubes. A diverting channel (15) is placed between the heat exchange tubes and the housing in a radial direction (14). The diverting channel is connected with an outlet (4) in an axial direction (7), where the guide element is made of metallic film.    USE - Device for placing a thermo-electric generator in an internal combustion engine of a motor car (claimed).    ADVANTAGE - The device can be used in a number of operating points of an internal combustion engine, such that high efficiency in conversion of thermal energy from exhaust gas is achieved. The device is placed in a region of an under-body of a motor vehicle, such that the device is installed in the motor vehicle without requiring complex and expensive integration parts, thus providing space-saving design of the motor vehicle, and hence reducing manufacturing cost of the motor vehicle and size of the motor vehicle. The heat exchange tubes are arranged parallel to the outer side of the peripheral surface in the axial direction, so as to improve heat transition of fluid i.e. exhaust gas, on the heat exchange tubes and to reduce excessive pressure loss in the motor vehicle.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a motor car.    DESCRIPTION OF DRAWING(S) - The drawing shows a longitudinal sectional view of a device for placing a thermo-electric generator in an internal combustion engine of a motor car.    Heat exchanger (1)    Housing (2)    Input (3)    Outlet (4)    Inner pipe (6)    Axial direction (7)    Front end of input (8)    Peripheral surface (10)    Heat exchange tubes (12)    Guide elements (13)    Radial direction (14)    Diverting channel (15)