What is the space between the flywheel and the armature referred to as?

The space between the flywheel and the armature is referred to as the air gap. This term specifically describes the distance where air exists between these two components, which is crucial for the operation of an engine's electrical system. The air gap allows the magnetic field generated by the flywheel to interact with the armature, facilitating the generation of electrical energy needed to power the engine's ignition system or charge the battery. An optimal air gap is essential for efficiency; if it is too wide or too narrow, it can lead to changes in performance or failure to generate sufficient voltage. Understanding this concept is vital for anyone working with small engine systems, as it impacts the reliability and effectiveness of the engine's electrical components.