MASTERING FUEL INJECTION

摘要

Since the introduction of fuel injection on the internal combustion engine (ICE) more than 100 years ago, there have been many changes to this system. Early fuel injection systems were based on mechanical principles, and used a jerk pump that metered high pressure fuel to a mechanical injector. Later came electronic fuel injection systems that work with both mechanical and electronic principles; these systems use a microprocessor that calculates the fuel delivery needed and commands the fuel injector solenoid. With either of these systems the end result is to meter the correct amount of fuel and deliver this in an atomized format to the cylinder. This is better accomplished with the modern electronic fuel control system, so this is the system used on the vast majority of newer vehicles.