What are the causes of damage to automotive turbochargers?

There are four main causes of turbocharger damage:

1.poor oil quality;

2.Foreign matter enters the turbocharger;

3.Sudden stalling at high speeds;

Schematic diagram of a turbocharger.

First, the oil quality is poor. The turbocharger consists of a turbine and an air compressor, which are connected by a shaft, and the exhaust gas energy drives the shaft to form compressed air and feed it into the cylinder. In the course of its operation, it has a high speed of about 150,000r min.

It is under these high temperature and high speed working conditions that the turbocharger has high requirements for heat dissipation and lubrication, that is, the quality of the oil and coolant must meet the standards.

Actual image of the turbocharger.

The oil lubricates the turbocharger and dissipates heat, while the coolant mainly cools down. If the oil or coolant is of low quality, such as not changing the oil and water on time, lacking the oil and water, or replacing the oil and water of poor quality, it can cause damage to the turbocharger due to insufficient lubrication and heat dissipation. In other words, the work of the turbocharger is inseparable from the oil and coolant, as long as the problem related to the oil and coolant, it may lead to damage to the turbocharger.

Working diagram of a turbocharger.

Second, foreign matter enters the turbocharger. Due to the precise coordination of the internal parts of the turbocharger, the slightest foreign matter entering will destroy its working balance and cause damage to the turbocharger. Foreign objects generally enter through the air intake pipe, which requires the vehicle to replace the air filter on time to prevent dust and other impurities from entering the high-speed rotating compressor impeller, resulting in unstable speed or damage to other parts.

Turbocharger with exhaust manifold.

Thirdly, the high rpm suddenly stalls. In turbochargers without independent cooling systems, sudden stalling at high speeds will cause a sudden interruption of the lubricating oil, and the heat inside the turbocharger cannot be taken away by the oil, which is easy to cause the turbine shaft to "bite to death". In addition, the exhaust manifold at this time has a high temperature, which will boil the oil temporarily staying inside the turbocharger into carbon deposits, and then block the oil passage and cause oil shortage, which will lay a hidden danger for the damage of the turbocharger in the future.

Turbocharger internal lubrication.

When the engine is cold started, because it takes a certain amount of time for the oil to establish oil pressure and reach the corresponding lubrication part, it should not step on the accelerator sharply, but should idle for a while, so that the oil temperature rises and the fluidity becomes better, and the oil has reached the part that the turbocharger needs to be lubricated. In addition, the engine should not be idle for a long time, otherwise the oil pressure will be too low, resulting in poor lubrication, which will damage the turbocharger.

The above four points are the main causes of turbocharger damage, and they are not the whole story. Generally, after the turbocharger is damaged, there will be acceleration weakness, insufficient power, oil leakage, coolant leakage, air leakage and abnormal noise, etc., which should be dealt with at the after-sales maintenance office in time.

Turbocharger.

InPreventionFor models with turbochargers, fully synthetic engine oil and coolant with better heat dissipation should be filled, and the air filter, oil filter, oil and coolant should be replaced on time. In addition, you can also change your driving habits appropriately and try to avoid intense driving.

There are three main causes of turbocharger failure: higher engine temperatures can cause the oil to become thinner, the viscosity is too low, and turbine lubrication is not working, causing the turbine to sweep holes, damage fan blades and burn shafts! Another reason was that the air filter was dirty and the turbine had sucked in dust that ground the center of the shaft, causing misalignment and accelerating the damage to the neck!

Class 3 premium motor oil, turbocharged cars, best fully synthetic motor oil, semi-synthetic motor oil for the last time! If the above three points are avoided, the turbine will not be easily damaged!

The reasons for the damage of automobile turbocharger are: the use of inferior engine oil, inferior oil has low resistance and fast fluidity, and the high temperature of the turbocharger requires high efficiency of heat dissipation, and good engine oil can improve the heat dissipation efficiency of the engine oil. The use of inferior oil filter element, inferior filter element due to the small filtration area, long-term use leads to the accumulation of impurities, serious decline in circulation will block the pipeline, resulting in poor turbocharger oil circulation.

When the engine is cold, the big foot throttle will cause the turbocharger speed to rise, resulting in high-speed rotation of the turbocharger, and the turbocharger temperature will rise because of the low oil temperature and poor circulation, and the temperature will not have time to decrease, resulting in turbocharger ablation.

The main causes of turbocharger damage are as follows.

The early turbocharger is indeed fragile and easy to burn out, but with the full popularity of floating bearings, the life of the turbocharger has been greatly extended, and it can basically be the same life as the engine, of course, because the turbine can reach more than 200,000 revolutions at a maximum, improper use and maintenance will indeed damage the turbine, resulting in turbocharger ablation.

In fact, the damage of the turbocharger is basically related to temperature and heat dissipation, and there are generally 5 reasons: the use of inferior engine oil, the big foot throttle when the engine is cold and the car is cold, the poor quality of the air filter, the use of inferior oil filter, and the need to delay the shutdown of the engine when driving for a long time.

The impact will be great, when the engine is working, it will cause poor air intake, poor exhaust, the temperature of the intercooler will increase due to the lack of flowing air, and it will also cause the temperature of the coolant radiator to rise, so it will lead to an increase in engine temperature, a decrease in lubrication performance, and a decrease in power. In severe cases, it can cause engine failure.

This depends on the situation, and it is recommended that it is best not to open it. There are several main concerns.

First, if the blades of the turbine are broken, such as being broken, then if you continue to drive, these small things are very likely to enter the engine, resulting in damage to the cylinder, and the engine will be wasted.

Second, if it is ruptured in other places, it will also cause a situation, and the most worrying thing is that there are foreign objects entering the engine;

Third, other faults, not as good as air leakage, electronic control failure, etc., in this case the engine is actually like a naturally aspirated engine, can run, but the power is low.

Answer: The symptoms of a broken turbocharger are generally a feeling of insufficient power and slow acceleration when you step on the accelerator. If it is a leak of engine oil, the exhaust will emit blue smoke, if it is a shell or a burning shaft, then the intake is seriously insufficient, and the exhaust will emit black smoke and the power is seriously insufficient. Here's what you need to know about turbochargers:

1. The turbine shaft is cooled by oil, that is to say, it is connected to the lubricating oil system of the engine. If it is not repaired in time, it will affect the lubrication system of the engine. Conversely, as long as it is properly maintained, good oil is used, and parking cooling is done well, the turbine will not break.

The biggest cause of turbine damage is the use of low-quality oil and unscheduled oil changes. 2. The turbocharger is actually an air compressor that compresses air to increase the air intake. It uses the inertia impulse of the exhaust gas discharged by the engine to push the turbine in the turbine chamber, and the turbine drives the coaxial impeller, and the impeller pressurizes the air sent by the air filter pipe to pressurize it into the cylinder.

3. When the engine speed increases, the exhaust gas discharge speed and the speed of the wheel also increase simultaneously, the impeller will compress more air into the cylinder, and the pressure and density of the air can increase to burn more fuel, and the corresponding increase in fuel can increase the output power of the engine.

Q: What is the performance of the turbocharger when it does not work?

Answer: The symptoms of turbocharging not working are: 1. Blue smoke or white smoke from the exhaust pipe; 2. Decreased power; 3. Consumption rises; 4. Increased oil consumption; 5. There is a sound of metal rubbing; 6. There is oil seepage in the intercooling pipe of the turbine; 7. The exhaust gas recirculation pipe is blocked. Turbocharging is a technology that uses exhaust gases from the operation of an internal combustion engine to drive an air compressor.

The reasons why turbocharging does not work are: 1. Insufficient lubricating oil pressure and flow; 2. Debris or sediment enters the lubrication system, causing oxidation and deterioration of the oil; 3. The oil return pipe of the supercharger is blocked, and the oil accumulates too much in the middle support of the rotor assembly, and flows into the compressor impeller along the rotor shaft.

ONE There may be a sharp screeching sound when the engine is running.

Second, the air intake is insufficient, the power of the whole vehicle decreases, and the muffler emits black smoke when the load is large, and the organic oil between the supercharger and the intake pipe of the diesel engine.

Fourth, the muffler emits blue smoke when the load is running.

First, the engine is not powerful enough, and second, there is an oil leak, and the exhaust pipe emits blue and white smoke.

What are the causes of damage to automotive turbochargers? The supercharger is the exhaust gas discharged from the exhaust pipe to push the turbine to rotate at high speed, the rotor shaft rotates through the rotor shaft at a speed of up to 50000-2300,000r min, the high-speed rotating compressor impeller will increase the pressure of the suction air, so that the air density is greatly increased, and the diesel power is improved. Turbine pressure is an important part to increase the power supply of the engine and reduce exhaust emissions.

Due to improper use, maintenance and maintenance, it is easy to fail, resulting in the normal operation of the engine.

TurbochargersA key part of using and maintaining a turbocharger is the bearing. This type of bearing, named according to the type of lubrication, is called a "full floating bearing", which is very high and has a poor working environment. Therefore, ensuring lubrication is a very important thing.

If the oil pressure is low due to low oil pressure, the bearing is damaged to make the turbocharger fail. This type of failure occurs when a normal engine is started, but if the engine replaces the oil and oil filter, the oil supply is slowly generated, leaving the bearings lacking oil lubrication.

In this case, it is about 3 minutes after start-up, and the speed of the rotational speed can be started to the speed of the turbocharger. Again, the engine is not allowed to stop immediately after high speed and uphill, allowing the engine to continue running for about 2 to 3 minutes, so the turbocharger bearings still continue to turn without lack of oil. Therefore, when using a turbocharger car, the driver must follow the manufacturer's operating requirements, especially pay great attention to the quality of the oil, and the vehicle should not take the turbocharger to operate with a natural car in general.

The operating temperature of the turbocharger is as high as 900 to 1000°C, which places higher demands on the cooling and lubrication of the turbocharger. If the heat of the oil is not emitted in time, the sealing rings and radial bearings of the sealing rings and radial bearings are formed. Cocoxo and Carbon can damage the seal and lubrication, and the lubrication will increase wear after being broken, further breaking the seal, eventually leading to the occurrence of an oil leak or causing abnormal sounds, serious or even traps.

Therefore, it has a turbocharger installed after driving the vehicle, the engine should not be turned off immediately, it should be idle the engine for a while.

Use low-quality motor oil.

Turbocharged engine is not necessary to use fully synthetic engine oil, but it is highly recommended to use full synthetic engine oil, fully synthetic engine oil can obtain relatively high shear resistance with relatively low viscosity, as we all know, the oil viscosity is low, the resistance is small, the fluidity is fast, and the high temperature of the turbocharger requires high efficiency of heat dissipation, the low viscosity of the fully synthetic engine oil can improve the heat dissipation efficiency of the oil, which is of great significance to the turbocharger.

There are many factors that can cause turbocharger damage, such as frequent acceleration and deceleration while driving, which can cause turbocharger instability, and infrequent cleaning and maintenance of turbocharger air intakes, which can also cause pressure damage.

The symptoms of a broken turbocharger are as follows:

1. Decreased power.

2. Increased fuel consumption.

3. Burn engine oil.

4. Blue smoke or black smoke from the exhaust pipe.

5. The engine shakes.

6. Make a screeching sound when accelerating sharply.

A turbocharged engine is an engine that relies on a turbocharger to increase the air intake of the engine, and the turbocharger (turbo) is actually an air compressor. It uses the exhaust gas from the engine as the power to push the turbine in the turbine chamber (located in the exhaust duct), and the turbine drives the coaxial impeller (located in the inlet duct), and the impeller compresses the fresh air sent by the air filter duct and then sends it into the cylinder.

When the engine speed is accelerated, the exhaust gas discharge speed and the turbine speed are also accelerated, the degree of air compression can be increased, and the air intake of the engine will be increased accordingly, and the output power of the engine can be increased.

Benefits: The main function of turbocharging is to increase the air intake of the engine, thereby increasing the power and torque of the engine, and making the car more powerful. When an engine is equipped with a turbocharger, its maximum power can be increased by 40% or more compared to without a turbocharger.

This means that the same engine can be boosted to put out more power.

Take our most common turbocharged engine, for example, after supercharging, the power can reach the level of the engine, but the fuel consumption is not much higher than the engine, on another level is to improve fuel economy and reduce exhaust emissions.

Disadvantages: However, after being supercharged, the pressure and temperature of the engine are greatly increased when working, so the engine life will be shorter than that of the engine with the same displacement without supercharging, and the mechanical properties and lubrication properties will be affected, which also limits the application of turbocharging technology in the engine to a certain extent.