| 摘要 |
PURPOSE:To reduce intake air resistance and increase the feeding accuracy of a second fuel by holding the measuring plate of an air flow meter at a full open position at the time of changeover from a first fuel to said second fuel. CONSTITUTION:An actuator 31 consisting of a motor, etc. is connected to the measuring palate 24 of an air flow meter 23 provided on the intake passage of a binary fuel engine. When an operation mode in which gasoline in a gasoline tank 2 is fed from an injector 19, is changed to an operation mode in which a CNG in a cylinder 1 is fed via a variable orifice 10, a driving signal is sent from a control circuit 13 to the actuator 31, and the measuring plate 24 is opened and kept at a full open position. Thereby, intake air resistance at the time of a gas fuel feeding mode can be reduced, increasing a fuel feeding accuracy.
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