How does fuel injection work?
george965324
Member Posts: 1
Fuel injectors, as the name implies are devices used to inject fuel into the engine's combustion chamber. Hence they replace the rule previously played by carburetors back on the old days. Due to more strict emission laws, and higher fuel costs, carburetors are almost entirely phased out in favor of injectors. Fuel injectors work by the help of high-pressure fuel pump supplying the fuel line with
200psi on non-direct injection system, up to 4000psi on direct injection systems. This pressurized fuel was sent to the injector and when the piston reaches the bottom dead center (BDC) of intake stroke, the engine control unit (ECU) sends a small amount of voltage to the injector (fuel injector cleaner reviewed by time4buying.com) actuator valve. The actuator valve system consists of an electromagnet the when energized it pulls the tiny needle plunger that holds the pressurized fuel in the injector. When the needle valve has been pulled, fuel is sprayed in a very fine mist (atomized) and each molecular component of gasoline is much more exposed to the air contained in the cylinder. Upon reaching the top dead center (TDC) of the compression stroke, the ECU sends a signal again to the ignition system to activate the spark plugs. On power stroke, the fuel burns clean and emission is reduced while power generated is high due to the complete burn of gasoline. Therefore you get better fuel economy. Anyway, that's just the basics. Newer engine technologies include altering the timing of injection, valve lift, and ignition.
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How does fuel injection work?
200psi on non-direct injection system, up to 4000psi on direct injection systems. This pressurized fuel was sent to the injector and when the piston reaches the bottom dead center (BDC) of intake stroke, the engine control unit (ECU) sends a small amount of voltage to the injector (fuel injector cleaner reviewed by time4buying.com) actuator valve. The actuator valve system consists of an electromagnet the when energized it pulls the tiny needle plunger that holds the pressurized fuel in the injector. When the needle valve has been pulled, fuel is sprayed in a very fine mist (atomized) and each molecular component of gasoline is much more exposed to the air contained in the cylinder. Upon reaching the top dead center (TDC) of the compression stroke, the ECU sends a signal again to the ignition system to activate the spark plugs. On power stroke, the fuel burns clean and emission is reduced while power generated is high due to the complete burn of gasoline. Therefore you get better fuel economy. Anyway, that's just the basics. Newer engine technologies include altering the timing of injection, valve lift, and ignition.
AND
How does fuel injection work?
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