| 摘要 |
PURPOSE:To improve fuel consumption and output, in a system provided with two intake ports having different open/close timing in each cylinder, by providing a fuel injection valve having fuel injection variable with load in the intake path to be coupled to each intake port. CONSTITUTION:Two intake ports 4', 5' and one exhaust port 6' are opened to combustion chamber 2 in each cylinder 1 of engine to open/close each port 4'- 6' by means of intake and exhaust valves 4, 5 and 6. Here, the intake valve 4 is opened from initial stage of intake stroke while intake valve 5 will open with time lag and close after closing of said valve 4. While fuel injection valves 13, 14 are provided in suction paths 11, 12 connected to each intake port 4', 5' where their injection is controlled by a control circuit 20. Consequently, the injection from valve 13 is made lower than that from the valve 14 for load lower than predetermined level while made same for load higher than predetermined level. |
