COMBUSTOR EQUIPPED WITH SUPERSONIC WAVE TYPE FUEL INJECTOR AND OPERATION THEREOF

摘要

PURPOSE:To improve the operation performance of an engine by increasing the fuel feed quantity over the fuel increase during the ordinary acceleration or high loading in the initial period of increase and at the same time by increasing also the output of a supersonic wave fuel injector, when the fuel feed quantity into the fuel injector is increased. CONSTITUTION:According to the magnitude of the variation quantity of the detection signal outputted from a throttle position sensor 3, a control unit V sets the increased portion of the fuel flow rate supplied into a supersonic wave vibrator 13 from an electromagnetic type fuel injection valve 15 in the initial stage of increase, namely on the start of acceleration of an engine I, in other words sets the max. value of the increased portion increased over the fuel supply quantity increased in the ordinary acceleration and the increase execution time. Therefore, the duty control for the opening/closing drive power of the injection valve 15 is carried out. At the same time, the output control for an oscillator 11 is carried out by setting the max. value of the output increased portion increased over the output of a high frequency oscillator 11 in the ordinary acceleration and the time for executing the increase of the output of the oscillator 11. Therefore, the responsiveness of the combustor is improved without deteriorating the fuel consumption and exhaust emission.