gyújtószikrával

Gyújtószikrával, also known as a spark plug, is a critical component in the ignition system of internal combustion engines. Its primary function is to create a spark that ignites the air-fuel mixture in the engine's cylinders, initiating the combustion process that drives the engine. The spark plug consists of a central electrode, which is connected to the ignition system, and a ground electrode, which is connected to the engine block. The gap between these electrodes is typically very small, usually around 0.02 to 0.04 inches, to ensure a reliable spark.

The spark plug is designed to withstand high temperatures and pressures, as it is exposed to the combustion chamber's harsh environment. It is made of materials that can resist corrosion and erosion, such as platinum or iridium for the electrodes and porcelain or ceramic for the insulator. The insulator is the non-conductive part of the spark plug that separates the electrodes and provides electrical insulation.

Spark plugs are available in various types, including conventional, iridium, and platinum. Conventional spark plugs are the most common and are suitable for most engines. Iridium and platinum spark plugs are more expensive but offer better performance and durability, especially in high-performance or high-mileage engines.

Regular maintenance of spark plugs is essential for engine performance and longevity. Spark plugs should be replaced according to the manufacturer's recommendations, typically every 30,000 to 100,000 miles or as needed. Signs of a failing spark plug include rough engine idle, misfires, and reduced fuel efficiency. In some cases, a faulty spark plug can cause engine damage if left unaddressed.