EFI Fuel Injection Method

Electronic Fuel Injection SystemSkilled Merchandise Provides AN EXPANDING LINEUP OF FUEL INJECTION Products FOR YOUR Efficiency APPLICATIONS. Depending on the system design, the timing of when injector opens is either relative each and every person cylinder (for a sequential fuel injection program), or injectors for a number of cylinders could be signalled to open at the very same time (in a batch fire system). More than this manual, suffice facts on components catalog + parts diagram, service specifications, upkeep schedules, service routines, repair schedules, wiring diagram, electronic schematic diagram are covered.

More precise management of the fuel injection event also enables superior control of emissions. Later Closed loop fuel injection systems enhanced the air/fuel mixture handle with an exhaust gas oxygen sensor Though not portion of the injection handle, a catalytic converter further reduces exhaust emissions. This was developed to meet the U.S. emission requirements with no loss in efficiency and it also reduced fuel consumption. The duration that the injector is open (named the pulse width ) is proportional to the quantity of fuel delivered.

Earlier systems, relying on simpler injectors, typically injected into a sub-chamber shaped to swirl the compressed air and enhance combustion this was recognized as indirect injection Even so, this was less effective than the now widespread direct injection in which initiation of combustion requires place in a depression (often toroidal ) in the crown of the piston.

Finally, the homogeneity of the fuel mixture allows for leaner air/fuel ratios, which together with additional precise ignition timing can enhance fuel efficiency Along with this, the engine can operate with stratified ( lean burn ) mixtures, and therefore steer clear of throttling losses at low and part engine load. Continuous injection systems can be multi-point or single-point, but not direct.

Rewards of fuel injection consist of smoother and more constant transient throttle response, such as through swift throttle transitions, less complicated cold beginning, additional precise adjustment to account for extremes of ambient temperatures and adjustments in air pressure, much more stable idling, decreased maintenance demands, and greater fuel efficiency.