How many ignition coils are there?
1 Answers
This depends on the type of vehicle. For example, in some microcars with a 4-cylinder engine, cylinders 1 and 4 share one ignition coil, while cylinders 2 and 3 share another. A 6-cylinder engine typically has three ignition coils, and some vehicles have one ignition coil per cylinder. Below is relevant information about ignition coils: 1. Types of coils: Ignition coils are categorized into open-magnetic and closed-magnetic types based on their magnetic circuits. Traditional ignition coils use an open-magnetic design, with their iron cores made of stacked silicon steel sheets about 0.3mm thick, around which the primary and secondary coils are wound. Closed-magnetic ignition coils feature an iron core shaped like "Ⅲ" for the primary winding, with the secondary winding wrapped around it, creating a closed magnetic circuit. The advantages of closed-magnetic ignition coils include less magnetic leakage, lower energy loss, and a more compact size, making them widely used in electronic ignition systems. 2. Precautions: Improper use of ignition coils can lead to damage, so the following points should be noted to prevent overheating or moisture exposure: Do not turn on the ignition switch when the engine is not running; regularly inspect, clean, and tighten wiring connections to avoid short circuits or grounding; manage engine performance to prevent excessive voltage; avoid prolonged "spark plug arcing." Moisture on ignition coils should only be wiped off with a cloth—never use heat to dry, as this can damage the coil.
