Causes of carbon deposition in automobiles

Question 1: It is generally believed that the reason for the formation of automobile carbon deposit is that the colloidal residue generated by the insufficient combustion of combustible mixture during the operation of the engine forms carbon deposit and adheres to the cylinder head and the spark plug, which affects the normal operation of the cylinder and reduces the performance of the engine. If this continues, it will gradually aggravate the formation of carbon deposits.

The necessary condition for carbon deposition is insufficient combustion. Then, the compression ratio determined in the initial design of the engine and the label of the recommended fuel are all designed according to the condition of full combustion, but why is there insufficient combustion in actual use? As a car owner, how to reduce the generation of carbon deposits?

1. The working load of the engine is changing at any time. Only by keeping the engine in good working condition can the formation of carbon deposit be reduced. When the engine is in poor condition, the vibration often intensifies and begins to make a painful "boom-boom" sound, and carbon deposition mainly occurs during this period.

2. Various driving habits. Many drivers simply pursue the fuel-saving concept of engine running at low speed and high gear, but ignore the synchronous state of throttle and speed, which leads to engine overload and carbon deposition.

3. The oil product label does not match the compression ratio, and the unsynchronized atomization and ignition of oil molecules will cause incomplete combustion, resulting in carbon deposition in the fuel supply system, such as fuel injectors, engine combustion chambers, piston ring grooves, spark plugs, the back of intake valves and air inlets.

4. Road conditions. Driving on a highly congested road, the vehicle is always in a stop-and-go state, the engine cannot run at high speed, and the fuel or lubricating oil that has escaped into the combustion chamber cannot burn 100%. The unburned part of fuel forms colloid under the action of high temperature and oxygen, which adheres to the surface of parts inside the engine, and then forms carbon deposit under the action of high temperature.

5. Add inferior gasoline. Inferior gasoline contains a lot of gum, which enters the combustion chamber with gasoline through the fuel supply system of the vehicle, and then burns with gasoline to form carbon deposit.

Question 2: What causes carbon deposition in automobile engines? There are many reasons, the most important one is that the engine fuel can't burn completely. Let's look at the carbon black in the exhaust pipe first. Generally speaking, automobile exhaust and engine carbon deposit are twins.

Carbon deposition is constantly produced, just like dust in daily life, only by constantly cleaning up the engine carbon deposition. When the tail gas pipe has the following conditions:

1/ Carbon-free: Wipe the exhaust pipe with white paper, which is only light yellow. = = The engine has no carbon deposit and the tail gas is odorless. .

2/ Floating carbon: In the same way, it was found that there was a little black carbon in the exhaust pipe, and there was little left after a light pat = =, and the engine was normal. The exhaust gas is basically odorless.

3/ Carbon thickness: Similarly, it is found that the black carbon in the exhaust pipe is very thick. There is still a lot of black charcoal after Bai Dan, which needs to be cleaned up in time. You can smell gasoline.

4/ Oil carbon: In the same way, it is found that white paper has black carbon, oil stains, burning oil, and the exhaust gas will be large and pungent. Need to be repaired in time. Otherwise, it is not a problem of cleaning up carbon deposits and tail gas.

5/ Oil carbon deposit and smoke: Due to carbon deposit and other reasons, it can be judged that the engine has serious problems. Need professional car repair.

6/ If the spark plug is removed, the basic judgment method is the same, that is, look at the spark plug head for carbon deposit and oil. It is judged that there are seven colors of automobile exhaust and carbon deposit.

7/ buckle space: 976429 Mountain Temple-use-dp engine beauty device-clean engine carbon deposit for 30 minutes, and 300,000 kilometers of net exhaust gas saves fuel. -Use the-dp engine beauty instrument to clean the engine carbon deposit for 30 minutes, which means: put a white towel at the exhaust pipe, step on the gas pedal, and see carbon black particles on the white towel, which proves that the carbon deposit has been cleaned up; Fuel-saving of 300,000 km net exhaust gas means that when the carbon deposit in the engine is cleaned up, there will be less carbon in the exhaust pipe of the automobile until there is no carbon black. Because the carbon deposit in the engine is cleaned automatically, the automobile exhaust has no smell of gasoline. Carbon removal = fuel saving = net exhaust /qq space: 976429 Mountain Temple.

Question 3: Where is the car carbon deposit? What is the main reason? Keywords valve, throttle, combustion chamber,

Question 4: What is the reason for the excessive carbon deposition in automobile throttle? Heavy air impurities are deposited near the throttle body through the intake system!

I hope it helps you!

Question 5: What is the cause of engine carbon deposition? How to solve the formation and harm of carbon deposit

Some people think that the reason for carbon deposition is the poor quality of oil products.

Some people think that the technical level of the maintenance station is not high, and even some people

Think it's the quality of the vehicle. So how is carbon deposition formed?

Can you avoid how dangerous it is to the work of car engines?

harm

At present, uneven fuel quality and urban road congestion are the reasons that are easy to form carbon deposits. First, fuel. During the storage and transportation of gasoline, it is easy to react with air to generate colloidal substances, or the colloidal content of gasoline itself is very high. These gums enter the combustion chamber with gasoline through the fuel supply system of the vehicle, and then burn with gasoline, which will cause a large amount of carbon deposition in the fuel supply system, such as fuel injectors, engine combustion chambers, piston ring grooves, spark plugs, the back of intake valves, air intakes, and so on. Secondly, the congested urban road conditions keep vehicles in a stop-and-go state all the time, so that the engine cannot run at high speed, and the fuel or lubricating oil escaping to the combustion chamber cannot burn 100%. The unburned part of fuel forms colloid under the action of high temperature and oxygen, which adheres to the surface of parts inside the engine, and then forms carbon deposit under the action of high temperature.

Everyone in the industry knows that when the engine is working, it enters the combustion chamber.

Organic compounds (fuel oil and lubricating oil) will be catalyzed by metals at high temperature.

Under the application, deep oxidation and condensation occur, forming resin and paint film. because

Resin and paint film have a certain viscosity, which can make the mixture enter the combustion chamber.

The carbon-containing deposits produced by the combustion of fuel and lubricating oil turned out that gasoline was an antiknock agent.

Lead compounds produced by additives, and salts produced by combustion of sulfur and metal in fuel.

Class, metal oxide formed after combustion of metal additives in lubricating oil, empty

Silicide, such as dust and sand carried by gas, gold worn by engine parts.

Metal fragments and their compounds adhere to it, and at the same time, they will

Resin and paint film are formed continuously, and they are linked together.

Various impurities are attached, and finally carbonized layer by layer at high temperature to form carbon deposit.

If the engine is operated continuously, that is,

Say, no matter how good the oil you use, the technical level of vehicle maintenance and the car

No matter how high the grade of a car is, the formation of carbon deposit is inevitable. Mainly carbon deposition.

Cover the top of the piston, the top and head of the intake valve and exhaust valve, the spark plug electrode and fuel injection.

Mouth and combustion chamber. It is precisely because of the existence of carbon deposits that the engine has a problem.

At present, the compression ratio is rising, the heat dissipation is not good, the spark plug is not good, and the valve is closed.

Bad phenomena such as lax, and some even when the intake valve is opened.

Air intake pipe, throttle body, etc. , thus affecting the work of the engine,

The performance of the engine is degraded. With the continuous increase of automobile mileage,

Carbon deposition will also accumulate more and more, and eventually the above common problems will appear. Therefore, it should be

Clean up carbon deposits in time and effectively.

Traditional carbon deposit cleaning method

After the above failures caused by carbon deposition, conventional solutions

The method is to remove the fuel nozzle and clean it by ultrasonic or other means.

Yes, so although the nozzle was cleaned, it was also destroyed.

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The original assembly performance of fuel injectors is even considered by some experts to be much higher.

The gear car is not worn out but repaired; In addition, it is more important to pay attention to

Carbon deposits in other parts should not be touched (such as the inner wall of combustion chamber, etc.). )

), of course, these parts can't be cleaned, so they can't be completely.

Eliminate engine failure caused by carbon deposit.

Methods of scientifically cleaning up carbon deposits abroad

In order to completely remove carbon deposits in all parts, it is necessary to use more.

Scientific and effective cleaning methods. At present, many foreign automotive oils and additives

The disassembly-free cleaning method adopted by pharmaceutical factories has been gradually accepted by the majority of users.

In this way, we use the special cleaning equipment produced by the company to cooperate.

The corresponding products can thoroughly clean the entire fuel system, without

In the case of disassembling the original components, cleaning is carried out in the equipment through combustion.

Products, nozzle, valve, piston top and combustion chamber products.

The carbon deposit is cleaned layer by layer, and the cleaned carbon deposit will not fall into the cylinder in blocks.

And aggravate the wear of the cylinder, but through the exhaust gas in the form of particles, and

It will not damage the oxygen sensor and block the three-way catalytic converter, which is also

The essence of this cleaning method and its difference from traditional cleaning methods.

However, the cleaning products added to the equipment only by combustion also

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Question 6: How is car carbon formed? There are many reasons for the formation of automobile carbon deposit, such as poor quality of gasoline and engine oil, being used to driving at low speed or neutral or idling frequently, leaving stationary vehicles on air conditioning for too long in hot weather, etc.

Question 7: Under what circumstances will vehicle carbon deposit form too much? The air filter is too dirty, so always turn down the throttle.

Question 8: What is the cause of carbon deposition in the throttle of EFI vehicle? Why? Throttle carbon deposition is caused by exhaust gas running backwards when the intake valve is opened, which is especially easy for people who like to shift gears with a small throttle. Because the flywheel inertia reserve is small when the throttle is small, it is necessary to add up the speed with a large throttle after adding a gear. At this time, the air intake is large, the rotation speed is low, the combustion is insufficient, the exhaust inertia is small, and the reverse injection quantity is increased. Shift gears with a large throttle. Give a little throttle after high gear, and the speed will go up, with full combustion and small reverse injection.