| 摘要 |
PROBLEM TO BE SOLVED: To increase the generation of output and to achieve miniaturization by making heat collection efficiency satisfactory from exhaust gas in an exhaust heat generating device for heating a high-temperature end face through the exhaust gas of an internal combustion engine or others and for air-cooling or water-cooling a low-temperature end face. SOLUTION: In an exhaust heat generating device, an exhaust pipe through which an exhaust gas G flows inside and a heat collecting surface 19a, where a heat collection fin 21 is formed are provided on at least one surface. The device has a flat-shaped internal cylinder 19 to which the exhaust gas G enters the inside from the exhaust pipe, an external cylinder 11 in which the internal cylinder is accommodated inside at intervals and a radiating surface 13a being opposite to the heat collection surface 19a of the internal cylinder 19 is formed, and a thermoelectric conversion module 33 that is formed between the heat collecting surface 19a of the internal cylinder 19 and the radiating surface 13a of the external cylinder 11 and is adhered to the heat collection surface 19a. In the heat collection fin, a plurality of plate-shaped bodies with different heights are arranged, while being in parallel with the flow direction of the exhaust gas G with respect to a long axis direction, orthogonally crossing the flow direction of the exhaust gas G. |
