What is the difference between EFI spark plugs and ordinary spark plugs?
1 Answers
"Resistor spark plugs" are anti-static and have good ignition performance; "ordinary spark plugs" generally do not have resistors, and resistor spark plugs have a letter R on them. More relevant information is as follows: 1. The reason for the production of resistor spark plugs: When a car is running, the spark plug fires 21 times per second. According to the design principle of spark plugs, it can be known that during each ignition, a strong current passes through the core of the spark plug. In this way, the spark plug generates a magnetic field each time it works. These magnetic fields interfere with all the electrical appliances around the engine, and the key point is that they cause great harm to people. Therefore, in the 1920s, people began to use resistor-type spark plugs. Initially, resistor spark plugs were used in aviation and military applications. Later, due to environmental reasons, some countries mandated the use of resistor spark plugs in cars. For example, in the Euro III emission standards in Europe, one of the requirements is related to spark plugs during car operation. However, current EFI vehicles must use resistor spark plugs. 2. Spark plugs: The electrode of the spark plug repeatedly and continuously generates ignition, igniting the mixture in the cylinder. At this time, other parts of the ignition system generate timed high-voltage electrical pulses, forming sparks and producing explosions to provide the energy required for the engine's power output. The structure of the spark plug is made of a slender metal electrode passing through a ceramic material with insulating function. The lower part of the insulator is surrounded by a metal shell, which is screwed into the cylinder head with threads. At the bottom of this metal shell, an electrode is welded to form a grounding connection with the car body. In addition, at the central end of this electrode, there must be a tiny discharge gap separated.
