What does a spark plug do? What is the function of the spark plug?

The function of the spark plug is to introduce the pulse high-voltage electricity generated by the ignition coil into the combustion chamber, and use the electric spark generated by the electrode to ignite the mixed gas to complete the combustion.

Commonly used spark plugs are divided into resistance spark plugs, bogold spark plugs, and iridium spark plugs. In general, resistive spark plugs have a life of 20,000 km, Bojin spark plugs have a life of 40,000 km, and iridium spark plugs have a life of 6 to 80,000 km.

The spark plug is the key to the ignition system of the car, and the ignition system is the key point of the engine, so the performance of the spark plug is related to the working performance and efficiency of the whole vehicle.

When you need to replace the spark plug, remove it and check it. Look at the color of the firing, the gap between the electrodes, the gap between the porcelain body and the metal shell, etc. If it is difficult to start the car in a cool state, there is obvious frustration when driving, idle shaking, or the engine acceleration performance is reduced, the spark plug should be checked in time.

Because once the vehicle has the above performance, it may be caused by the aging of the spark plug.

Spark plugs are commonly known as fire nozzles. The function of the spark plug is to send a pulse high-voltage electrical discharge from the high-voltage wire (nozzle wire) to break down the air between the two electrodes of the spark plug and generate an electric spark to induce the mixed gas in the cylinder.

The function of the spark plug is to create an electric spark that ignites the gasoline in the engine cylinder.

Spark plugs, commonly known as fire plugs, are used to discharge the pulse high-voltage electrical discharge from the high-voltage wire (nozzle wire) to break down the air between the two electrodes of the spark plug and generate an electric spark to introduce the gas mixture in the cylinder. The basic conditions of a high-performance engine: a high-energy, stable spark, a homogeneously mixed mixture, and a high compression ratio.

It is a component in the ignition system of a gasoline engine that introduces a high-voltage current into the cylinder to generate an electric spark to ignite a combustible gas mixture; It is mainly composed of a wiring nut, an insulator, a wiring screw, a central electrode, a side electrode and a shell, and the side electrode is welded to the shell. Hope it helps.

All gasoline engines have spark plugs, one for each cylinder, and some high-speed gasoline engines are equipped with two spark plugs per cylinder. The spark plug is a small part, but it is so important that the engine would not be able to move without it. Anyone who drives a lot will be familiar with this thing.

Spark plug is a relatively cheap car wearing parts, but many people do not know that spark plug plays a very important role in the operation of the engine, it is related to the car fuel economy, quiet and so on, maintenance of spark plug will surprise you.

The function of the spark plug is to introduce the high-voltage electricity (more than 10,000 volts) generated by the ignition coil into the engine cylinder, and generate a spark between the gaps between the spark plug electrodes to ignite the mixture. The working environment of the spark plug is extremely harsh, taking the spark plug of an ordinary four-stroke gasoline engine as an example, the temperature is only 60 and the pressure is 90kpa during the intake stroke; When ignition burns, the temperature will rise to 3000 degrees instantly, and the pressure will reach 4000kpa; The alternating frequency of this quenching of cold and heat is very high, which is not something that ordinary materials can cope with, and it is necessary to ensure insulation performance, so the material requirements for spark plugs are also very demanding.

Nowadays, all cars are powered by internal combustion engines, and the most important thing in the car engine is the spark plug that is ignited externally, because this key component is hidden in the combustion chamber of the engine, and only the insulator and connector can be seen from the outside, so it is easy to be ignored by many car owners. In fact, it is this inconspicuous element that affects the engine's starting ability, performance, consumption and exhaust emission levels. If the engine is the heart of the car, then the spark plug is the "pacemaker" of the "heart".

The function of spark plugs All gasoline engines have spark plugs, one cylinder, and individual high-speed gas oil engines are also equipped with two spark plugs per cylinder. Although the spark plug is only a small part, it is extremely important, without which the engine would not be able to move. Anyone who drives a lot will be familiar with this thing.

The spark plug basically has two major functions: one is to generate sparks in the combustion chamber and ignite the mixture to generate power. The second is to seal the spark plug hole to maintain the pressure in the cylinder.

In general, the high-voltage electricity supplied to the spark plug from the ignition coil through the distributor through the wire is about 20,000 to 30,000 volts, and the electrodes of the spark plug must be constantly in a high-temperature combustion chamber with an atmosphere pressure of about 45 times or more, and it must also maintain a high degree of air tightness. Therefore, in such a harsh environment, the quality and durability of the spark plug will directly affect the performance of the engine, so it must be taken seriously.

Gasoline engines generate power through the timely combustion of fuel and gas mixtures, but gasoline as a fuel is difficult to spontaneously ignite even in a high-temperature environment, so it is necessary to ignite it with "fire" in order to make it burn at the right time.

Gasoline engines generate power through the timely combustion of fuel and gas mixtures, but gasoline as a fuel is difficult to spontaneously ignite even in a high-temperature environment, so it is necessary to ignite it with "fire" in order to make it burn at the right time. The spark ignition mentioned here is the function of the "spark plug". The overall performance of the engine is completely determined by the quality of the spark plug flashing sparks.

The 3w km used for ignition is best to replace If you feel that the car waste oil is boring, you should replace the spark plug It is what people used to say Electric wax.

If the car wants to start, it is necessary to rely on the spark plug to ignite and then start the power! The car can be driven!

A high-voltage electric spark is generated that ignites the compressed combustible mixture.

The spark plug is an important element to support the work of the gasoline engine (the diesel engine is compression-ignition work, and there is no spark plug). In the ignition system of a gasoline engine, a high-voltage current is introduced into the cylinder to produce an electric spark to ignite the components of the combustible gas mixture. It is mainly composed of a wiring nut, an insulator, a wiring screw, a central electrode, a side electrode and a shell, and the side electrode is welded to the shell.

Sparks are generated, fires are ignited. The engine.

The spark plug replacement cycle depends on what material you use, and its main purpose is to ignite the gasoline in the engine.

<> "Many novice drivers know a lot about car knowledge, such as common spark plugs, and they don't know what specific functions they have. So what does a spark plug do?

The function of the spark fortress is to discharge the pulse high-voltage electricity sent by the high-voltage wire, break through the air between the two stages of the spark plug, ignite the mixed gas of lead in the cylinder, and make these mixed gases burn to promote the car.

The service life of a spark plug is not only related to its material, but also to its working environment. If you use inferior gasoline for a long time, the water content of these gasoline is relatively high, and the combustion is not complete, and long-term use will make the surface of the spark plug coated with carbide and cause the situation that it cannot be ignited.

The spark plug, commonly known as the fire nozzle, is used to discharge the pulse high-voltage electric discharge from the high-voltage wire, penetrate the air between the two electrodes of the spark plug, and produce an electric spark to induce the mixed gas in the gas cylinder. The main types are: quasi-type spark plugs, edge body protruding spark plugs, electrode type spark plugs, seat type spark plugs, polar type spark plugs, surface jump fire type spark plugs, etc.

The function of the spark plug is to introduce tens of thousands of volts of high-voltage electricity into the combustion chamber, and generate an electric spark to ignite the mixture, and cooperate with the ignition system and oil supply system to make the Mingque engine work, to a large extent, the performance of the common motive.

The main species. According to the calorific value, there are cold type and hot type; According to the electrode material, there are nickel alloys, silver alloys and platinum alloys; If you are more professional, the types of spark plugs are generally as follows:

1. Quasi-type fire annihilation silver flower plug: the skirt of the insulator is slightly retracted into the end face of the shell, and the side electrode is outside the end face of the shell, which is the most widely used.

2. Spark plug with protruding edge: the skirt of the insulator is long, protruding beyond the end face of the shell. It has the advantages of large heat absorption, good anti-fouling ability, etc., and can be directly cooled by the intake air to reduce the temperature, so it is not easy to cause hot spot fire, so the thermal adaptation range is wide.

3. Electrode spark plug: its electrode is very thin, characterized by strong sparks, good ignition ability, and can ensure that the engine is fast and reliable in the cold season.

Starting, wide thermal range, can meet a variety of purposes.

4. Seat-type spark plug: its shell and screw-in thread are made into a cone, so it can maintain a good seal without a washer, thereby reducing the volume of the spark plug and making it more beneficial to the design of the engine.

5. Polar spark plug: the side electrode is generally two or more than two, the advantage is that the ignition is reliable, and the gap does not need to be adjusted frequently, so it is often used in some gasoline engines where the electrode is easy to ablate and the spark plug gap can not be adjusted frequently.

6. Surface skip type spark plug: that is, along the surface gap type, it is the coldest type of spark plug, and the gap between the central electrode and the end face of the shell is concentric.

The spark plug is one of the important components in the ignition system, its function is to pass the pulse high-voltage electricity generated by the high-voltage bag and transmitted through the high-voltage line and the high-voltage cap, break down the air between the two electrodes of the spark plug, and generate high-voltage electric sparks to ignite the compressed combustible mixed gas in the gas cylinder, and promote the piston to exercise the engine work and generate the power source of the engine.

The spark plug is very important to the ignition performance of the engine, if the quality of the spark plug is not good or the model, calorific value and other inappropriate, it will affect the normal ignition and operation of the engine, resulting in a variety of faults such as abnormal engine work, and the dry chain will affect the performance of the engine in terms of power and other aspects.

One: the role of the spark plug.

The function of the spark plug is to quickly introduce the ignition energy into the combustion chamber, discharge the pulse high-voltage electricity sent by the high-voltage wire, and instantly ignite the compressed flammable mixture with the electric spark between the electrodes, and the ignited gas provides a steady stream of power for the car by doing work. The spark plug has a decimating influence on the operation of ignition engines. The automobile spark plug must ensure reliable cold start, and the vehicle will not misfire during acceleration and high speed, and the phenomenon of early ignition due to overheating of the ceramic insulation body; And it can withstand the continuous work of the engine at maximum power.

2: The function of the spark plug is to ignite the combustible gas to provide power for the car.

1. When the car is driving, with the engine revolution, each spark plug is ignited several times to dozens of times per second, that is to say, when you drive to and from work every day, the spark plug has worked hundreds of thousands of times in the ignition of the abutment limb, and the role of the spark plug is to ignite the combustible gas, so as to provide power for the car, which shows the importance of the role of the car spark plug for the car.

2. Whether the car starts or walks, every second is inseparable from the ignition of the spark plug, as long as the spark plug has an ignition failure, then the engine workmanship will fail once, and you will feel the rubbing of the car. If the spark plug ignition failure of the car is too many times, you will feel the fuel consumption, the power decreases, and the engine is unstable. Although the spark plug is inconspicuous, it is actually the most important component of the car, and it is also the component with the most failure rate, which directly affects the driving effect and feeling.

3. The spark plug is the heart of the automobile engine, but because this key component is hidden in the combustion chamber of the engine, only the insulator and connector can be seen from the outside, so it is easy to be ignored by many car owners. In fact, this inconspicuous component affects the engine's starting ability, performance, consumption and exhaust emission level, an excellent spark plug can reduce the emission of automobile exhaust, it can be seen that the role of the spark plug on the car is still relatively extensive.

Hello spark plugs, commonly known as fire nozzles. The function of the spark plug is to send a pulse high-voltage electric discharge from the high-voltage wire (nozzle wire), break through the air between the two electrodes of the spark plug, and generate an electric spark to induce the mixed gas in the gas cylinder. The main types are:

Quasi-type spark plugs, edge body protruding spark plugs, electrode type spark plugs, seat type spark plugs, polar type spark plugs, surface jumping fire type spark plugs, etc. The spark plug works with the ignition system and the oil supply system to make the engine work, and to a large extent, it determines the performance of the engine.

The main spark plug is the spine player, that is, ignition, that is, electronic ignition, for this vehicle, which is of great help, spark plug is commonly known as the nozzle, if the engine is the heart of the car, then the spark plug is the pacemaker; The spark plug is the key to the ignition system of the car, and the ignition system is the focus of the engine's work; The main function of the spark plug is to generate an electric spark that ignites the liquid ridge gasoline in the engine cylinder to provide a steady stream of power to the car! Without the spark plug, the engine wouldn't run! Therefore, the performance of the spark plug directly determines the working performance of the whole wild seepage vehicle.