| 摘要 |
<P>PROBLEM TO BE SOLVED: To promptly supply vaporized fuel into a cylinder even at low temperature start, and to improve starting performance. <P>SOLUTION: An engine 10 includes a vaporized fuel tank 36, an in-tank injection valve 38, a vaporized fuel supply valve 40 or the like. An air phase chamber 36B and a liquid phase chamber 36C are formed in the vaporized fuel tank 36. An ECU 70 supplies the vaporized fuel to a surge tank 20 at the start-up while accumulating the vaporized fuel generated during the drive of the engine in the air phase chamber 36B in advance. By this arrangement, the starting performance can be improved. Furthermore, the fuel is injected from the in-tank injection valve 38 on assumption that liquid phase fuel may remain in the liquid phase chamber 36C at the generation of the vaporized fuel, and the vaporized fuel can be generated even at cold staring. Furthermore, the vaporized fuel generated in the liquid phase chamber 36C during the drive is replenished to the air phase chamber 36B, and a large volume of the vaporized fuel can be accumulated in the air phase chamber 36B as much as possible. <P>COPYRIGHT: (C)2012,JPO&INPIT |
