| 摘要 |
PURPOSE:To improve the measuring accuracy of the fuel flow to be injected according to the intake air flow by connecting an electrical opening area adjusting means, another adjusting means, and the like to a first flow passage for letting fuel pressure act upon each diaphragm type fuel injection valve disposed at a manifold. CONSTITUTION:The fuel fed through a first constant flow feeding means is sent out to a first flow passage 9 to which a first fuel pressure regulator 11 is connected, through a first jet 10, and the fuel in this flow passage 9 is impressed to the upper chamber 21 of a fuel injection valve 19. The fuel fed through a second constant flow feeding means 26 is impressed to the lower chamber 22 of the fuel injection valve 19. The request fuel quantity is injected to a manifold 24 from the lower chamber 22 by displacing a diaphragm 20 by the fuel pressure impressed to the upper chamber 21. In this case, an adjusting means 33 for sending the specified fuel flow into the first flow passage 9 is provided as well as an electrical opening area adjusting means 42 is connected to the first flow passage 9 through the second flow passage 17, and a second fuel pressure regulator 43 is connected to the downstream side of the electrical opening area adjusting means 42. |
