Spark plugs are one of the most important components in vehicles with a gasoline engine. They are not only responsible for ensuring reliable starting but also play a crucial part in attaining optimum engine performance and dependable operation. This applies particularly to modern engine management systems, where spark plugs and their design are gaining in significance.
The purpose of a spark plug is to ensure controlled combustion of the fuel in the engine. To do so a high voltage generated by the ignition coil is introduced into the combustion chamber and the compressed fuel/air mixture is then ignited by the electric spark passing between the electrodes.
The principle of the spark plug is brilliant in its simplicity. A conductor isolated from the engine passes a high-voltage pulse to an electrode, from where a spark jumps to a ground electrode. This spark ignites the mixture.
The requirements a spark plug is able to satisfy are governed by the following: The design, the materials used and the manufacturing processes employed.
Bosch put a lot into research and development and are thus constantly launching new series spark plugs to satisfy the highest requirements. This means: Lower consumption, reduced emissions and a more compact size. Being aware of the value of such innovative technology, the international automotive industry is always keen to work closely with Bosch right from the start.