| 摘要 |
PURPOSE:To simplify the control logics of a computer and improve response, by electrically regulating a control valve which controls the feed of air by-passsing a throttle valve to regulate the ratio of air to fuel and by mechanically regulating the control valve depending on the degree of opening of the throttle valve. CONSTITUTION:When the ratio of air to fuel becomes high at the time of the change of a vehicle from sharp acceleration to sharp deceleration, the iron core 30 and rotary member 48 of a control valve 10 are swung by a desired angle depending on the change in the degree of opening of a throttle valve 11 and a part of a communication hole 36 on the core 30 is opened from the inclined left end 49 of a bobbin 31. As a result, an inlet port 24 is connected to an outlet port 25 to supply air to an intake manifold 13 through a by-pass 14. At that time, a solenoid 32 is energized through a computer 20 on the basis of the output of an O2 sensor 18 to move a slide valve 37 to the right against springs 39, 40 to open the communication hole 36 further. Necessary air is thus supplied. |
