"I want strong power and low fuel consumption, what should I do?"
- "This is simple. With the Turbocharger in hand, it has high efficiency and low consumption."
"What are the capabilities of a Turbocharger? What precautions should be taken when using it?"
- "Don't worry, I'll explain it to you."
If the engine is the heart of the truck, then the Turbocharger is the "super assist" that makes the heart beat faster. It can increase power by up to 30% on the basis of the original engine power, which has advantages in increasing power, improving economy, and reducing emissions. Significantly.
How does a Turbocharger work?
The Turbocharger is mainly composed of a turbine and a compressor. The turbine is like a huge fan. It is pushed by the exhaust gas discharged from the engine, thereby driving the compressor impeller to rotate. The compressor is like a vacuum cleaner that sucks in fresh air and compresses it, thereby increasing the density of the air entering the cylinder. The ultimate increase in engine power is due to its "stunt" of turning "waste" into treasure. The Turbocharger is also called the "lungs" of the engine. However, if the Turbocharger is not properly maintained, it is prone to oil leakage and other phenomena, which will affect the engine performance and life.
What are the causes of Turbocharger oil leakage?
1. Long-term idling
When the engine is idling for a long time and the Turbocharger speed cannot rise, a certain negative pressure or vacuum state will be generated at the oil seals on the opposite sides of the Turbocharger turbine impeller and the compressor impeller, which will cause the oil flowing out of the floating bearing to act on the pressure difference. It will leak from the bottom to the outside, resulting in oil leakage, which will affect the oil consumption in the long run.
If the vehicle idles for more than 20 minutes, it will bring potential risks of oil leakage to the Turbocharger. If the oil leakage is serious and the dust in the air intake system is large, it will cause coking on the expansion surface of the pressure housing, resulting in a decrease in Turbocharger performance.
2. Floating bearing wear
If the engine oil is not replaced for a long time, the floating bearing will be seriously worn, resulting in excessive bearing clearance and unstable oil film. At high speeds, the Turbocharger will easily become unbalanced, which will intensify the vibration of the rotor shaft system, thereby destroying the sealing rings at both ends, causing oil leakage.
3. The air filter is too dirty or clogged
When the air supply is poor due to excessive dust in the air filter or deformation and leakage of the air intake pipe, etc., it will cause the compressor inlet negative pressure to be too high, causing the internal pressure at one end of the compressor to be higher than the external pressure. The effect of the oil on the pressure difference is down, it will flow out from one end of the intake pipe, causing oil leakage.
4. Poor oil return
When the oil flows out from the floating bearing of the Turbocharger, it will flow back to the oil pan by its own gravity. However, if the oil return pipeline is deformed or clogged or there is pressure in the oil return pipeline due to excessive exhaust gas pressure in the crankcase, the oil will flow back to the oil pan from the floating bearing. The oil that flows out will not flow back to the oil pan smoothly, but will flow out from the sealing rings at both ends along the rotor shaft, causing oil leakage.
How to determine if your Turbocharger is leaking oil?
Visually check whether there is any trace of oil at the outlet of the Turbocharger pressure housing when the machine is shut down. If oil stains are found, there is likely to be a hidden danger of oil leakage, which must be dealt with as soon as possible to avoid greater losses. Pay attention to regular replacement of the air filter and oil filter, and frequently check the sealing and bearing condition of the Turbocharger. Early detection and troubleshooting can better keep the Turbocharger running healthily.
What questions do you have? Feel free to ask us.
