Turbocharged power vs. naturally aspirated how to choose a spark plug

Spark plug. The material used has a decisive impact on the replacement cycle, the mainstream spark plugs on the market are copper core, nickel alloy core, platinum core, iridium core, copper core is recommended to be replaced every 2-30,000 kilometers, the cycle of nickel alloy is slightly longer than that of copper core, and it can be replaced at about 4-60,000 kilometers, and the spark plug metal characteristics of iridium and platinum core are relatively stable, and the oxidation resistance is good, so the service life will be relatively long, and the platinum core is recommended to be replaced every 80,000 kilometers; The iridium core is recommended to be replaced every 100,000 kilometers.

Naturally aspirated engine.

There is a difference between the requirements for spark plugs and turbocharged engines, not that there are spark plugs for turbocharging, but there are precautions when choosing. Because the liter power of the turbocharged engine is larger than that of the naturally aspirated engine of the same displacement, the instantaneous temperature and pressure of the oil-gas mixture are also greater, so the relative wear is more serious, and it is necessary to use the first spark plug to extend the service life.

How spark plugs work and how they are classified.

The electric plate of the spark plug ignites the mixture in the cylinder through repeated and continuous power generation ignition, and at this time, the other parts of the ignition system generate a timing of high-voltage electrical pulses, forming sparks and generating the energy required to provide the engine power output.

The structure of the spark plug is made of a slender metal electric plate through a ceramic material with insulating function, and there is a metal shell around the lower part of the insulator, which is screwed on the cylinder head in a screw way, and an electrode is welded at the bottom of the metal shell to form a grounding effect with the automobile body. In addition, the ends of the electrodes** must be separated by a small discharge gap.

Then, the high-voltage current from the distributor will pass through this ** electrode to conduct electricity, and then discharge in the discharge gap at the bottom end, at this time, the spark plug will play its role to produce a spark combustion mixture, and the engine will get energy and output power.

The difference between a turbocharged engine spark plug and an ordinary self-aspirated engine spark plug is the difference in calorific value and discharge voltage.

The classification of spark plugs is distinguished by the advantages and disadvantages of thermal conductivity, that is, the ability of the electrode to disperse heat energy to the cooling system. The short insulator on the outside of the cold spark plug has the advantage of a shorter and faster transfer of heat to the cooling system, delaying ignition, and is suitable for high speed or high performance engines. For example, turbo (turbocharged) and high compression ratio models have the disadvantage of being higher.

The insulator of the thermal spark plug is longer, but the advantage is that it is more affordable, and the disadvantage is that the heat energy is conducted to the cooling system for a longer distance, and the thermal conductivity efficiency will also deteriorate, so the heat energy generated by the spark plug is difficult to dissipate, so this kind of product is only suitable for the general low performance or low compression ratio of N A (natural air intake) vehicles.

Turbocharged. Engine and naturally aspirated engine spark plugs.

General, but it is not recommended that the engine spark plug of the large turbocharger is mainly used for turbocharging, engines with high compression ratio, and ordinary self-aspirated engine spark plugs, which are mainly used for engines with low performance or low compression ratio. An engine converts a certain form of energy into mechanical energy.

of the machine. It has little function as a chemical energy transfer of liquids or gases.

After combustion, it is converted into heat energy, and then the heat energy is converted into mechanical energy through expansion and output power. The power of the car comes from the engine. The engine is the heart of the car, providing power for the walking of the car, and the power, economy and environmental protection of the car.

To put it simply, the engine is an energy conversion mechanism, that is, the thermal energy of gasoline (diesel) is converted into mechanical energy by pushing the piston to work when the combustion gas expands in the sealed cylinder, which is the most basic principle of the engine. All the structure of the engine is for the energy conversion service, although the engine has gone through more than 100 years of history with the car, whether it is in the design, manufacturing, technology or performance, control has been greatly improved, its basic principle is still unchanged, this is a rich creative era, those engine designers, continue to integrate the latest technology with the engine, the engine into a complex mechatronics.

products, so that the engine performance to reach the degree of near-perfection, the world's famous automobile manufacturers will also take the performance of the engine as a competitive highlight, first, the automobile engine.

role. The automobile engine is a device that provides power for the car, is the heart of the car, and is an energy conversion device, which is to convert the thermal energy of gasoline (diesel) into mechanical energy by expanding the gas after combustion in the sealed cylinder, pushing the piston to do work. According to different power**, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrids.

Second, the classification of automobile engines.

1. According to the working mode of the air intake system, it can be divided into four types: naturally aspirated, turbocharged, mechanically supercharged and double supercharged.

2. According to the piston movement mode, it can be divided into two types: reciprocating piston internal combustion engine and rotary piston engine.

3. According to the cylinder arrangement type, it is divided into in-line engine, V-type engine, W-type engine and horizontally opposed engine.

4. According to the number of cylinders, it can be divided into single-cylinder engine and multi-cylinder engine. Modern cars mostly use three-cylinder, four-cylinder, six-cylinder, and eight-cylinder engines.

5. According to different cooling methods, it can be divided into water-cooled engine and air-cooled engine. The water-cooled engine cools evenly, works reliably, and has a good cooling effect, and is widely used in modern automotive engines.

6. According to the number of strokes, it can be divided into four-stroke internal combustion engine and two-stroke internal combustion engine. Four-stroke internal combustion dissipators are widely used in automobile engines.

The power of the turbocharged engine is greater than that of the naturally aspirated engineSome can even be on par with naturally aspirated engines, the difference lies in the technical differences of various manufacturers.

This number varies with different manufacturers, because each manufacturer is different for the tuning of the engine, the tuning is different, the most direct reflection is that the amount of fuel injected in each cycle is different, the amount of fuel injection is different, the engine work is different, and the power output is not the same.

The principle of turbocharging:

The first turbochargers were used in sports cars or formula cars, so that the engine could get more power in racing races where engine displacement was restricted.

The engine is based on the fuel in the cylinder combustion work to produce power, because the amount of fuel input is limited by the amount of air in the cylinder, so the power produced by the engine will also be limited, if the engine's stupid song bucket running performance has been in the best state, and then increase the output power can only increase the amount of fuel by compressing more air into the cylinder, so as to improve the engine function. Therefore, under the current technical conditions, the turbocharger is the only belt abrasive device that can increase the output power of the engine without reducing the efficiency of the engine.

At present, turbocharged engines and naturally aspirated engines are widely used in various automobile models, whether it is a joint venture model or a domestic car, each using its own turbocharged engine or naturally aspirated engine. And for these two different types of engines, each has its own advantages. For the choice of turbocharged engine or naturally aspirated engine to start according to their own actual situation, if you are the pursuit of sufficient power, fast start of the car, then choose turbocharged.

If you are looking for that kind of comfort, if you want a smooth driving experience, then use a car with a natural information engine. <>

Turbocharged engines are more powerful after the turbo intervenes, and they perform better in emission control, so that they can achieve a lower emission effect, if the emissions are lower, then the vehicle and vessel use tax and purchase tax will be reduced, so the upfront cost of buying a turbocharged engine will be lower, but the fuel consumption with a turbocharged engine is relatively high, so it is not particularly ideal in terms of fuel economy. The biggest advantage of the naturally aspirated engine is that the engine is stable, the quality is reliable, and the internal structure of the naturally aspirated engine is simple, it is relatively quiet when carrying a book, and the power output is relatively smooth, and the most important thing is that the repair and maintenance cost of the naturally aspirated engine is relatively low, and the requirements for the pursuit of that kind of boyfriend quality are not very high. Therefore, turbocharged engines and naturally aspirated engines have their own advantages.

But I personally think that if it is used by ordinary families, I recommend buying a naturally aspirated engine, because the failure rate of a naturally aspirated engine is very low, the maintenance and use cost is also low, and the power of the naturally aspirated engine is also fully suitable for family use, and the most important thing is that the technology is mature, so the cost of choosing a naturally aspirated engine is low, and it is the most suitable for home use. <>

In general, each of these two engines has its own advantages, but it just depends on what consumers want. The number of cars in our domestic market is getting bigger and bigger, and the quality requirements of customers for cars are getting higher and higher.

I think the naturally aspirated engine will be better, compared to the turbocharged engine, the naturally aspirated engine will be more stable and comfortable, there will not be too much bumpy feeling in our driving, the driving experience will be better, suitable for city roads, and the turbocharged engine power will be better, more suitable for mountain roads or some uneven paths.

Of these two engines, the naturally aspirated engine is the best, because everyone thinks that turbocharging still has certain drawbacks.

The naturally aspirated engine is better, and it will also make many young people choose this engine, which does not have a lot of noise in life. There will also be two types of air intake. Fuel consumption is low.

Turbocharged acceleration will be better, but the naturally aspirated power delivery is easier to manage. With full-throttle acceleration and rear power, turbocharging is usually extremely exciting; However, when driving at low speeds and climbing hills, it is easier to find a suitable and precise throttle pedal position to ensure the average power output.

In general, naturally aspirated is more reliable and perfect, while turbocharging has advantages in various indicators. In the past, naturally aspirated completely "overshadowed" the turbo. In the past two years, the situation has changed, and turbocharging has gradually "entered the house" to compete with natural aspiration.

However, it must be pointed out that the number of models equipped with turbocharged engines is not large, only Volkswagen and Buick are fully installed, and other car companies have not followed up. This also makes the supply of some turbocharged models tight, for this, the author's opinion is that turbocharging is worth buying, but if you want to increase the price or wait for the car, then forget it.

Supercharged engines generally have high pressure and temperature in the cylinder, and spark plugs with good heat dissipation performance are required, otherwise the life of the spark plugs will be relatively short, and it is easy to detonate. Therefore, the spark plugs of the supercharged engine (with T) are generally colder.

If the naturally aspirated engine uses a relatively cold spark plug, the spark plug self-cleaning function cannot be played, and it may shake when idling, and the fuel consumption is high when running, and carbon deposits are easy to form.

Fuel fee! It's not good for the engine, and it depends on the model to change things.