In cylinder direct injection engines are more likely to cause carbon deposits that are not real

The issue of carbon deposition in in-cylinder direct injection engines has always been controversial, and the key is that each person has a different situation.

To put it simply, the carbon deposits that can often get the car running are much better; The probability of carbon deposition is much higher if it is often congested at low speeds, especially if it is congested for a long time in hot weather.

Here's a quick rundown of the reasons:

In the in-cylinder direct injection engine, the fuel is directly injected into the cylinder and mixed with the intake air for combustion;

The multi-point injection is mixed with the intake air in the intake manifold and then injected into the cylinder for combustion;

Under the premise of high temperature and low speed, the temperature of the fuel mixture in the latter is relatively low, which is theoretically more conducive to full combustion.

In the direct injection mode, the combustion is not so sufficient under the working conditions of low speed and high temperature, and it is easier to deposit carbon.

The principle of direct injection in the cylinder and layered combustion is indeed more efficient and more powerful under ideal working conditions. When traffic jams and slow followers become the norm, and there are few ideal working conditions, it is easy to expose the problem of carbon deposits.

According to incomplete statistics, vehicles with direct injection technology are often recommended to use detergents when they regularly return to 4S stores for maintenance, on the grounds that "they can effectively inhibit the formation of carbon deposits".

Hello, direct injection in the cylinder is not easy to produce carbon deposits, direct injection in the cylinder can make the engine burn more thoroughly, the power is more sufficient, and it is not easy to form carbon deposits, I hope you can be satisfied with me and wish you a happy life.

No, direct-injection engines are less likely to cause carbon deposits than self-priming engines.

Why is the direct injection engine easy to deposit carbon Because the direct injection engine puts the fuel injector in the cylinder, it cannot inject gasoline on the valve, so the carbon deposits on the valve cannot be dissolved and cleaned, so the direct injection engine in the cylinder is prone to carbon deposit.

Engine carbon deposition is inevitable for all cars, when the engine carbon deposition of the car is serious, the vehicle will have weak acceleration, fuel consumption and other phenomena, affecting the normal use of the car. Generally speaking, every 10,000 kilometers or so of the car, the carbon deposits of the engine must be cleaned in time.

A few tips to reduce carbon deposits in your engine:

1. When adding fuel, try to add high-quality fuel. High-quality fuel is more fully combusted, which can not only prevent carbon deposits, reduce vehicle fuel consumption, but also extend the service life of the engine to a certain extent.

2. Try to add fully synthetic engine oil, which has higher fluidity, which can speed up the heat dissipation and cooling of the engine, and reduce the oil scale on the throttle.

3. When the car is driving, it can occasionally use low gear and high speed to alluvial carbon, and if the engine speed has been kept in a relatively low range, it is easy to produce carbon deposits.

4. Maintain the car on time, clean the oil pipeline, throttle valve, etc. on time, and replace the spark plug on time.

Does the valve of an in-cylinder direct injection engine deposit carbon?

The valves of in-cylinder direct injection engines are more prone to carbon deposits.

The working principle of the in-cylinder direct injection engine is to send the fuel directly to the cylinder, and then mix it with the outside air for combustion.

Because the in-cylinder direct injection engine is to directly deliver fuel to the combustion chamber for combustion, so the amount of fuel injection is controlled more accurately, it is worth mentioning that the in-cylinder direct injection engine can achieve stratified combustion and lean combustion, which will not only improve the power of the engine, but also improve the fuel economy of the engine.

Because the throttle valve of the direct injection engine in the cylinder is relatively easy to form carbon deposits, there is no large amount of fuel at the intake manifold to clean the carbon deposits, if it is not cleaned for a long time, the carbon deposits of the engine will be more and more, which will lead to the unobstructed air intake of the engine, which is easy to affect the normal operation of the engine.

In the process of using the car, it is necessary to regularly observe the working state of the engine, whether it is any type of engine, carbon deposits will be generated in the process of use, which will not only affect the power of the engine, but also lead to an increase in the fuel consumption of the car. (Photo by Q&A: Q&A called the beast) @2019

This is because the injectors of the direct injection engine are in the cylinder, so there are some places where the gasoline cannot be washed off, and carbon deposits will occur.

For intake injection engines, the injectors are installed in the intake tract to allow the gasoline to rush to some parts of the engine so that the carbon deposits of the engine will dissolve.

Direct injection engines are prone to carbon deposits on the top of the piston and on the back of the valves.

In-cylinder direct injection engines rely on pistons to provide vortex currents. The top of the piston of the direct injection engine in the cylinder is generally specially designed to produce vortex in the air in the cylinder, and the gasoline can be fully mixed with the gasoline when it is injected, so as to improve the combustion process and improve the starting efficiency.

When gasoline is injected, a small amount of gasoline is injected directly into the top of the piston and cannot be fully combusted.

The temperature of the combustion chamber is very high, and the gasoline on the top of the piston will form some carbon deposits after a long time under the action of high temperature.

Carbon deposits in the combustion chamber are harmful to the engine. Carbon deposits in the combustion chamber increase the compression ratio of the combustion chamber and increase the probability of engine knocking.

Knocking is harmful to the engine.

Detonation is an abnormal combustion phenomenon in an engine. Severe knocking can even cause deformation of the engine pistons** or connecting rods.

Millions of car purchase subsidies.

The reasons why direct injection engines in cylinders are more likely to produce carbon deposits are: 1. The crankcase forced ventilation device will bring part of the oil vapor into the intake manifold, and this part of the oil vapor will be deposited in the intake manifold to form carbon deposits; 2. The fuel injector of the direct injection engine in the cylinder injects the fuel directly into the cylinder; 3. The temperature of the direct injection combustion chamber in the cylinder is low. The maintenance method of the engine is:

1. Use qualified engine oil; 2. Use qualified coolant and antifreeze; 3. Clean the scale of the water tank regularly; 4. Clean up the carbon deposits of the engine regularly; 5. Regularly replace the three filters of automobiles; 6. Maintain a reasonable speed.

Because the injector of the direct injection engine is in the combustion chamber, the air intake of this engine is naturally quite prone to carbon deposit. Moreover, the direct injection engine in the cylinder is very easy to inject gasoline to the top of the piston when injecting fuel, the temperature of the piston is relatively high, and the natural piston top is also very easy to form carbon deposits. The injectors of the direct injection engine are mounted directly on the cylinder head, so that the engine can directly expose the gasoline and inject it into the combustion chamber.

In-cylinder direct injection engines are more powerful than multi-point injection engines, and fuel rationality is also better. But in-cylinder direct-injection engines are also more susceptible to carbon build-up than multi-point injection engines. There is no particularly good way to deal with carbon deposits.

Friends can use some fuel additives that can remove carbon deposits when using the car, which can remove part of the carbon deposits. Friends can also regularly remove carbon deposits from the engine. A good way to remove carbon deposits is walnut sanding, which can remove most of the carbon deposits.

Some repair shops will use the bottle removal method to remove the carbon deposit, but this method is less effective. It is a natural proposition that carbon deposits must not be removed in this way. In the case of normal refueling, you must not add some low-quality gasoline for the sake of cheapness.

Long-term use of low-quality gasoline may also affect the increase in engine carbon deposits. That's all there is to it about why direct injection in the cylinder is easier to deposit carbon. Have you memorized them all?

Is direct injection in the cylinder easy to deposit carbon Why is the direct injection engine easy to deposit carbon Because the direct injection engine in the cylinder puts the injector in the cylinder, it is impossible to inject gasoline into the valve, so the carbon deposits on the valve cannot be dissolved and cleaned, so the direct injection engine in the cylinder is prone to carbon deposits. Carbon build-up in engines is inevitable in all cars. When the carbon deposition of the automobile engine is serious, there will be weak acceleration and increased fuel consumption, which will affect the normal use of the car.

Generally speaking, every 10,000 kilometers of the car, the carbon deposits in the engine must be cleaned up in time. Tips to reduce carbon deposits in your engine:1.

When adding fuel, try to add high-quality fuel. High-quality fuel burns more fully, which can not only prevent carbon deposits, reduce car fuel consumption, but also extend the service life of the engine to a certain extent. 2.

Try to add fully synthetic engine oil, which has higher fluidity, which can speed up the cooling of the engine and reduce the grease on the throttle. 3.When the car is moving, it is occasionally possible to flush the carbon deposits with low and high speeds.

If the engine speed is kept in a relatively low range, carbon deposits can easily occur. 4.Maintain your car on time, clean the oil circuit and throttle on time, and replace the spark plugs on time.