Final answer:
The three main components of a turbine engine ignition system are spark plugs, ignition coils, and the ignition control unit. It receives signals from various sensors in the engine, such as the crankshaft position sensor, and uses this information to determine the optimal timing for the ignition sparks.
Step-by-step explanation:
The three main components of a turbine engine ignition system are spark plugs, ignition coils, and the ignition control unit. Spark plugs are responsible for creating sparks that ignite the fuel-air mixture in the engine cylinders. They consist of a central electrode and a ground electrode, which create a small spark gap where the high voltage from the ignition coils jumps across. Ignition coils are electrical transformers that convert the low voltage from the battery into the high voltage needed to produce sparks in the spark plugs.
They accomplish this by using a magnetic field to induce a voltage across a primary winding, which then creates a high voltage in the secondary winding. The ignition control unit is an electronic module that controls the timing of the sparks produced by the spark plugs. It receives signals from various sensors in the engine, such as the crankshaft position sensor, and uses this information to determine the optimal timing for the ignition sparks.