NOVELTY - The thermoelectric generator (100) has high temperature component with exhaust tube (112) surrounded by first annular heat transfer plate (119). The exhaust tube is surrounded by inner housing of low temperature component. Several second heat exchange pins are extended inwardly in radial direction from second heat transfer plate at predetermined angle. The side surfaces of thermoelectric modules are formed using p-type and n-type semiconductors, such that sides are made to contact with pins to product electric power using thermoelectric phenomenon caused by gap between heat pins.    USE - Thermoelectric generator used in engine of vehicle. Can also be used in power supply unit of cordless communication device, spaceship, and nuclear-powered underwater boat.    ADVANTAGE - The size of the thermoelectric generator is reduced, even if the contact region between the exhaust gas and the thermoelectric modules is large. The fuel efficiency of the vehicle is improved, as the thermoelectric generator is installed in engine of vehicle to generate electricity for charging vehicle. As the transfer rate of heat between high temperature component and thermoelectric module is increased, the heat energy of the exhaust gas is conducted and conveyed efficiently to the thermoelectric module, so that the generation of noise from exhaust gas flowing through the thermoelectric modules is reduced. The heat exchange region of the thermoelectric generator is increased, thus the amount of electric power generated by the thermoelectric generator from the thermal energy of the exhaust gas is increased.    DETAILED DESCRIPTION - A coolant flux path is formed between outer housing and inner housing. A bypass pipe is arranged within the exhaust tube with predetermined gap. A heat transfer net is mounted between the exhaust tube and the bypass pipe.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the thermoelectric generator.    Thermoelectric generator (100)    Exhaust tube (112)    Annular heat transfer plate (119)    Coolant inlet (121)    Coolant outlet (123)