| 摘要 |
PURPOSE:To effect the constant speed running satisfactorily even in a high speed area by a method wherein the opening degree of a throttle is controlled by employing the compression air of a turbo charger in the car equipped with a fuel injection type engine with the turbo charger. CONSTITUTION:The vacuum inlet port 17 of an actuator 3, controlling the opening degree of the throttle valve 4, is connected to the vacuum output port 31 of a vacuum generator 30. When the turbo charger 2 has been brought into the operating condition thereof upon running in high speed, a part of air compressed by the compressor 9 is sucked into an intake manifold 13 through a pipeline 55, an aspirator nozzle 43 and the pipeline 56. At this moment, a vacuum, necessary for the operation of the actuator 3, is generated around the right tip end of the aspirator nozzle 43. Thus, the constant speed running upon a slope running or the high speed running may be permitted. |
