What is the Air-Fuel Ratio of an Engine?
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Here is an introduction to the air-fuel ratio of an engine: 1. Introduction: The air-fuel ratio refers to the mass ratio of air to fuel in the mixture. It is generally expressed as the grams of air consumed per gram of fuel burned. 2. Control Methods: Open-loop control: This method is typically used during cold starts or when the coolant temperature is low. Closed-loop control: Electronic fuel injection engines use closed-loop control to precisely maintain the air-fuel ratio within a narrow range near the stoichiometric ratio, maximizing the efficiency of the three-way catalytic converter.