| 摘要 |
PURPOSE:To improve the general engine performance by providing an element member adapted to absorb and generate heat corresponding to the direction of applying an electric current on a high temperature portion of an engine, and controlling element member to change an effect mode thereof according to the operating condition of the engine. CONSTITUTION:A cylinder block 1 includes an element member 13, the inner peripheral portion of which is positioned in a combustion chamber 6 and the outer peripheral portion thereof is positioned in a water jacket portion 11. The element member 13 is adapted to generate power according to Seebeck effect by endothermic, and to absorb and generate heat according to Peltier effect corresponding to the direction of applying an electric current. On the other hand, the water jacket 11 is fitted with a water temperature sensor 18, and according to a signal from the water temperature sensor 18 or the like, an effect mode of the element member 13 is controlled to change by CPU 20. For example, in case of conducting warming up, the element member 13 is set in a Peltier effect mode, so that an electric current is applied in a designated direction to heat the combustion chamber 6, thereby reducing the warming-up time.
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