About spark plug
If there’s one key component of the ignition system car it is the spark plug! It is made of three main parts; the housing, insulator, and electrodes. The spark plug plays a crucial role in the process of ignition; it is designed such that it transmits electrical current from the ignition system to the combustion chamber of the engine to ignite the compressed air-fuel mixture. This is done via an electric spark; the spark plug performs this task and is also responsible for maintaining the combustion pressure within the engine. When looking closely you will notice a threaded metal shell, this is electrically shielded via a central electrode by a porcelain insulator. This central electrode is connected to a highly insulated wire containing a resistor called magneto (ignition coil output terminal). The metal casing of the spark plug is pushed into the head of the engines cylinder, hence making it electrically grounded. It is best to have the spark plugs checked every 30,000 miles, as they are used a lot, it is also good to replace them within the duration specified by the vehicle manufacturer.
What is the purpose of spark plug?
Spark plugs are the vehicle's tiniest bolt of light. Which is very small yet extremely strong. The spark of electricity generated over a small gap by the plug generates the ignition needed to start your engine. The car must start, stay powered and produce a smooth combustion of the compressed air-fuel mixture by setting the engine's pistons in motion. They are designed to cope with the intense heat and pressure inside the cylinders and are designed to burn off fuel additives or other deposits of contaminants.
How spark plug works?
It is the different components used to produce spark plugs that are responsible for making them do their job safely. They consist of an insulated electrode in the center that is attached to a highly insulated wire that connects either to an external ignition coil or to a magneto. Which constitutes the grounded terminal at the base of the spark plug. There is a void at the spark within the cylinder. Expressed generally. There are two types of internal combustion engines: spark-ignition engines (requires spark plugs to start combustion), and compression-ignition engines / diesel engines that compress air and then inject diesel fuel into the hot compressed air mixture. The latter could even use glow plugs to improve the cold start features of the vehicle.