Classification of automobile ignition system

The ignition system of Pacific Auto Network is divided into traditional ignition system and electronic ignition system. Ignition system is an important part of gasoline engine, and its performance has great influence on engine power, fuel consumption and exhaust pollution.

All devices that can generate electric spark between two electrodes of spark plug are called engine ignition system. It usually consists of storage battery, generator, distributor, ignition coil and spark plug.

In the traditional ignition system, the power supply is a battery, and its voltage is 12V or 24V, and the high voltage generated by the ignition coil and the circuit breaker is above 10000V ... It is divided into a primary loop and a secondary loop. The ignition coil is actually a transformer, which is mainly composed of a primary winding, a secondary winding and an iron core. The circuit breaker is a cam operated switch.

The brake cam is driven by the engine valve cam and rotates at the same speed, that is, the camshaft rotates once for every revolution of the crankshaft gear. In order to ensure that the crankshaft rotates twice and each cylinder ignites in turn, the number of ribs of the cam of the circuit breaker is generally equal to the number of cylinders of the engine, and the contact of the circuit breaker is connected in series with the primary winding of the ignition coil to cut off or connect the circuit of the primary winding. (Photo/Text/Photo: Pacific Auto Network Chen Jie 2)