| 摘要 |
PURPOSE:To improve a fuel consumption for travelling on an urban street, by providing a vapor accumulator on a vapor inlet part of an expander, in a compound engine having a Rankine engine which is operated by waste heat of a main engine. CONSTITUTION:A Rankine engine is constituted with a vpaorizer 3, an expander 4, a condenser 5 and a feed liquid pump 6. A vapor accumulator 12 is provided on a vapor inlet part of the expander 4. A main engine 1 is suspended at the time of an idling operation, and restarting is carried out by the Rankine engine based on a vapor state inside the vapor accumulator 12. A fuel consumption can be improved like this, in travelling on a street where many idling operations are made. An idling noise of a vehicle at its standing can be reduced and further the smooth restarting becomes possible as this system is so constituted that the main engine is suspended at the time of the idling operation. |
