Opel Kadett E

1984-1991 of release

Repair and car operation

8.1. System of ignition with the breaker

THE GENERAL DATA

The ignition system makes ignition of a fuel mix in engine cylinders at a given time depending on engine and loading turns. On cars various types of systems of ignition are established many.

The ignition system eats from an onboard network of the car. In the coil of ignition pressure of an onboard network of the car will be transformed to a high voltage. The high voltage is used for spark formation between electrodes of spark plugs in engine cylinders in a compression step. The chain of a low voltage or a primary chain consists of electroconducting which connects the accumulator, the ignition lock, a primary winding of the coil of ignition and the electronic block of ignition. The chain of a high voltage or a secondary chain consists of a high-voltage winding of the coil of ignition, the central high-voltage wire, the distributor of ignition, a rotor of the distributor, high-voltage wires of spark plugs and spark plugs.

The ignition coil will transform a faltering current of a low voltage (+12) to a power-current for breakdown of an air backlash between electrodes of spark plugs. The ignition coil represents the transformer with opened магнитопроводом which consists of the internal core and external ring магнитопровода. The secondary winding having a great number of coils, is reeled up round the core. The primary winding with smaller number of coils is reeled up over the secondary.

The ignition system works as follows. At pressure giving on a primary winding of the coil of ignition in the ignition coil there is a magnetic field. For inclusion and deenergizing of the pressure submitted to a primary winding of the coil of ignition, the electronic block is used.

At pressure deenergizing on a primary winding of the coil of ignition the magnetic field power failure in a secondary winding generates a high voltage which through the ignition distributor moves to a candle of the corresponding cylinder. Then pressure again moves to a primary winding of the coil of ignition therefore the magnetic field increases also a cycle repeats for high voltage giving to the following spark plug.