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工程机械之家>文章分析>How to solve the oil leakage of turbocha
How to solve the oil leakage of turbocha
来自:工程机械之家 时间:2015-09-15 浏览数:0

How to solve the oil leakage of turbocharger       

 

Turbocharger often leaks oil during the working process. What is the cause of this fault? How to solve this problem? The main cause of turbocharger oil spill following situations:

(1) failure of the sealing device

Sealing device failure, especially the compressor end sealing O ring lost due to the action of the oil seal, directly lead to leakage of lubricating oil, air compressor casing to the turbocharger at this time, due to the lack of lubrication oil and damage, at the same time, the oil leaking into the coke formed in the volute, the influence to the normal operation of.

(2) air filter dust blocking

Air cleaner filter element cleaning is not timely, resulting in excessive dust accumulation and blocking, leading to compressor intake negative pressure is too high, in the compressor impeller at the back of the negative pressure is high, and the formation of compression oil leakage.

(3) wear failure of sealing ring

Because the lubricating oil and air entering the turbocharger are difficult to ensure the absolute cleanliness, and the radial clearance of the turbine shaft is too large, the sealing ring and ring groove will be seriously worn out, and the sealing effect will be lost. In addition, the invalid lubricating oil will cause the seal ring to gradually lose air seal and seal oil, leading to oil leakage.

(4) the oil return pipeline is not smooth

If the main oil passage of low oil pressure, oil return pipe blockage or pipeline too small, will cause the difficulty of returning oil, lubricating oil pressure will lead to the ends of the flow along the shaft, resulting in oil spill.

In addition, the piston ring fracture or wear caused gas channeling to the crankcase, the crankcase ventilation pipe obstruction will also increase the pressure of the oil pan, resulting in the supercharger due to poor return oil leakage.

(5) excessive inlet pressure

Generally, the inlet pressure of the lubricating oil of the turbocharger is normally 250 ~ 400kPa. When the inlet pressure is higher than 600kPa, the high pressure will cause the leakage of the lubricating oil self sealing device to the turbine end.


(6) improper installation or damage

In the turbocharger compressor end and the turbine end of the tank, there are 2 sealing rings, assembly if the adjacent two ring openings can not be staggered 180 degrees, but also easy to cause turbocharger oil leakage. By the elastic force ring is fixed on the casing seal turbocharger, elastic decreases, turbocharger shaft will move back and forth, change the lateral clearance seal ring groove ring and the shaft, the ring face wear, leading to the turbocharger oil leakage.

As long as we find the reasons for the turbocharger leak, the right remedy, you can get a good solution. Or that sentence, want to trouble less, the key is diligence maintenance, more observation, only the machine health, in order to better work, you say is not it?



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