| 摘要 |
PURPOSE:To control the flow rate ratio of both liquefied gasoline and alcohol reformed gas at a predetermined ratio by mounting valves to both paths supplying the liquefied gasoline separated by means of the separator of the composite fuel engine and the alcohol reformed gas and controlling the opening and closing of the valves in response to the output of an alcohol sensor. CONSTITUTION:When the alcohol sensor 14 outputs A, A crosses with a triangular wave P generated by a circuit 16 at points a0, a1..., an element 21 is at ON and the valve 12 is opened under the H state of a rectangular wave Q alternately repeating an H state and an L state in the output of a comparison circuit 17, and an element 22 is at OFF and the valve 13 is brought to a closed state. The valve 12 is closed and the valve 13 is opened under the L state of the rectangular wave Q. The valve 12 and the valve 13 are reciprocally opened and closed during the repetition of of the triangular wave P, and gasoline is supplied to the path 10 by means of the valve 12 and reformed gas to the path 10 by means of the valve 13. When the output B of the sensor 14 is low, the rectangular wave Q is changed into a rectangular wave in which the H state is long and the L state is short, the opening time of the valve 12 is lengthened, the opening time of the valve 13 is shortened, and the flow rate ratio of reformed gas to gasoline is changed in response to the variation of alcohol concentration. |
