Spark plugs, description of components - GF15.10-P-2000SM

ENGINE 113.986

ENGINE 113.987

ENGINE 113.988

ENGINE 113.989

Fig 1: Identifying Spark Plugs - Engine 113.988

Location

Two spark plugs per cylinder are fitted in the cylinder head

Task

The spark plugs ignite the suctioned and compressed fuel-air mixture due to arcing between the electrodes.

Body

All spark plug characteristics are defined in the model formula for the specific manufacturer (e.g. heat rating, seat shape, thread, width across flats, electrode material, spark location).

Function

The ignition voltage flows from the ignition lines of the ignition coils to the spark plugs and causes arcing in the air gap between the central electrode and ground electrode.