In this system, quality of charge remains constant but quantity of air–fuel mixture supplied to the engine is varied by means of centrifugal governors. Centrifugal governor regulates the throttle valve; whenever the engine starts running at higher speed due to decreasing load, the quantity of charge is reduced till the engine speed reaches to its normal speed. Similarly, whenever the engine runs at lower speed due to increasing load, the quantity of charge is increased to increase the speed to normal speed.
Leave a Reply