Air-fuel ratio controllers are electronic devices used to regulate the mixture of air and fuel in internal combustion engines. The air-fuel ratio is the ratio of the mass of air to the mass of fuel in the mixture being burned in the engine. The ideal air-fuel ratio for most engines is around 14.7:1, which means that for every 14.7 parts of air, one part of fuel is used. This ratio is known as the stoichiometric ratio and provides the best balance between power output and fuel efficiency. Air-fuel ratio controllers are designed to maintain this ratio by adjusting the amount of fuel injected into the engine based on the amount of air entering the engine. Air-fuel ratio controllers use a variety of sensors to measure the amount of air entering the engine and the amount of fuel being injected. These sensors include mass airflow sensors, oxygen sensors, and fuel flow sensors. The controller then uses this information to adjust the amount of fuel being injected into the engine to maintain the desired air-fuel ratio. The controller can also adjust the timing of the fuel injection to optimize engine performance. Air-fuel ratio controllers are used in a wide range of internal combustion engines, including gasoline and diesel engines. They are particularly important in engines with variable valve timing and direct injection, which require precise control of the air-fuel ratio to operate efficiently. Air-fuel ratio controllers can also improve engine performance and reduce emissions by ensuring that the engine is operating at peak efficiency.
air-fuel ratio, internal combustion engines, electronic devices, sensors, fuel efficiency
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