| 摘要 |
PURPOSE:To improve a thermal efficiency by a method wherein a mixture gas is heated by a discharged heat of the engine, the heating temperature is controlled to control an output of the engine and a pumping loss of the engine under a partial load is eliminated. CONSTITUTION:In a heat exchanger 8, one end of the heating chamber 11 is communicated with a discharged gas manihold of the main body 4 of the engine through a discharged gas branch passage 13 and the heating chamber 11 surrounds an outer circumference of the intake pipe 10, several heat pipes 14 are extended from the inside of the heating chamber 11 into the intake 10, a plurality of rows of heat pipes 14 are radially arranged and fins 15 are provided in order to improve a thermal efficiency. In a range of partial load, the gas is heated by a heat of the discharged gas through the heat exchanger 8 when the gas passes through the intake pipe 10. The gas is suctioned into the combustion chamber 5 through the intake valve 6 and then combustioned therein. Thus, it is possible to eliminate a pumping loss and improve a thermal efficiency. |
