A device or software program designed to determine the optimal proportion of air and fuel needed for combustion in an internal combustion engine. For example, a gasoline engine typically requires a specific mixture, often close to 14.7 parts of air to 1 part of fuel, for efficient and clean operation. Such tools can compute this ratio based on various engine parameters and operating conditions.
Achieving the correct mixture is crucial for engine performance, fuel efficiency, and emissions control. A lean mixture (more air than ideal) can lead to increased NOx emissions and potential engine damage, while a rich mixture (more fuel than ideal) can reduce power output, decrease fuel economy, and increase unburned hydrocarbon and carbon monoxide emissions. Historically, mechanics relied on simpler methods and experience to adjust the air-fuel mixture. Advancements in technology have enabled precise calculation and control, resulting in significant improvements in engine efficiency and reduced environmental impact.
