| 摘要 |
PURPOSE:To prevent engine revolution from being excessively increased when an air control valve fails to be opened, and when control by an ISC is beyond its limit in an engine equipped with the ICS system which regulates an air flow rate within a bypass passage bypassing an inlet air throttle valve, and with a fuel injection valve device having an air assist passage provided with an air control valve halfway. CONSTITUTION:This is an internal combustion engine with a fuel injection device equipped with a bypass passage 4 going around an inlet air throttle valve 2, an air supply passage 6 assisting fuel injected from fuel injection valves 3a through 3d with air while the respective passages 4 and 6 are provided with an idle revolution control valve 5 and air control valves 7a through 7d. And the revolution increase restraining means is provided, which lowers the engine in revolution to an idle operating condition where the opening of an idle revolution control valve 5 is less than a specified one, and engine revolution is equal to or more than a specified one. |
