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The role of turbine box and its failure analysis
Time: 2020-06-18

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The turbo system is one of the common supercharging systems in supercharged engines.


   If in the same unit time, more air and fuel mixture can be forced into the cylinder (combustion chamber) for compression and explosion (a small displacement engine can "inhale" the same amount as a large displacement). Air, improve volumetric efficiency), it can produce a larger power output than a naturally aspirated engine at the same speed.Turbocharging uses exhaust gas to drive, basically without additional energy loss (no additional burden on the engine), it can easily create high horsepower, is a very smart design.The situation is like you take an electric fan and blow it into the cylinder, and you just pour the wind into it to increase the amount of air inside to get a larger horsepower, but this fan does not use an electric motor, but uses the exhaust gas from the engine. drive.         


   Generally speaking, the engine can increase the extra power by at least 30%-40% after cooperating with such a "forced intake" action. Such an amazing effect is the reason why the turbocharger is so admirable.Moreover, obtaining perfect combustion efficiency and greatly increasing power are originally the great value that turbocharging systems can provide to vehicles.


   The system includes turbocharger, intercooler, intake bypass valve, exhaust bypass valve and supporting intake and exhaust pipelines.


   There will be some failures during the use of the turbine box. We list some of the main failures as follows:


   1. Due to the damage of the polyurethane sealing ring in the small oil cylinder, the pressure oil enters the worm gear box body, causing the pressure oil in the oil filling hole on the top of the worm gear box to emerge or the lubricating oil level displayed on the worm gear box oil level to increase significantly.


   2. Because the horizontal pin on the push rod is broken and the clutch disc cannot be driven, the pressure oil output by the auxiliary pump can meet the requirements after measurement, but the knife cannot be cut or the paper cannot be cut.


   3. The noise caused by the quality of the double vane pump itself and the lack of oil or damage to the bearing in the middle of the pulley cause abnormal noise when the machine is running dry.


   4. Damage to the skeleton oil seal at the shaft head of the double vane pump causes air to often appear in the pipeline.


   5. There is a small amount of regular knife slip phenomenon during the cutting process.

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