Discuss how the proper use of turbochargers

Summary: Once you master the correct method of operation and regular inspection, maintenance good turbocharger, turbocharger will not only greatly extend the life and improve the car's power, but also improve the economic use of the car.

Keywords: proper use of turbochargers

0 Introduction
With the rapid development of automobile Industry, car has been gradually into the thousands of families, to meet the comfort, the use of economic requirements, it is the driving force for car of the requirements gradually increase, the existing technical conditions , the installation of the turbocharger to the engine is the best solution. In general, the installation of the turbocharger, the engine power and torque than the previous installation increased by 20% to 30% of low-emission , high-power, representing the current engine technology, the highest level has a better engine than the average power, but also better fuel economy.

What is a turbocharger? It is installed in the engine exhaust pipe of a sophisticated air compressor, use the turbine engine exhausts rotating turbine chamber, turbine and impeller coaxial drive, so put the impeller coming from the air filter compressed air, so that pressurized into the cylinder due to increased density of the air entering the cylinder, allows more fuel combustion, thus greatly improving the engine's power, reducing fuel consumption.

As the system is the use of engine exhaust-driven turbine, the turbocharger is often at high speed, high temperatures, the temperature of the turbine-side at 600 degrees or more, the turbocharger also 80,000 -10 million per minute of high speed rotary switch So in order to ensure the normal operation of the turbocharger, the proper use and maintenance should turbochargers in use in the process should note the following.

A turbocharged engine cold start Notes
Car engine after a cold boot, not anxious fuel, should be idle three to five minutes, which is to enable the engine oil temperature, flow performance improvement, so that the turbocharger bearings are fully lubricated, which is particularly important in the winter. or easy to make the turbocharger rotor shaft, bearings, seals and other components due to lack of oil and early wear.

For parking longer (a week or more) vehicles, the engine restarted, be sure to lubricate the turbocharger. Is to release the turbocharger inlet pipe connection to the inlet end of the oil into a clean and shell with the grade of oil. In addition, changing the oil, clean or replace the oil filter, they all should be the way to add oil to the turbocharger, and then start the vehicle.

2 turbocharged engine flameout Notes

Engine load or longer with a high speed, you can not turn off immediately, because the engine works, the pump will transport oil to the turbocharger for lubrication and cooling of the rotor bearings, the engine suddenly stalled, the pump stops working , oil pressure quickly reduced to zero, oil lubrication interrupted, the turbocharger operation the heat generated by the oil can not be taken away, when the turbocharger turbine section of the heat will spread to the middle of the bearing support housing, the bearing support shell the heat can not be taken away quickly scattered lost, and the turbocharger rotor inertia is still doing high-speed rotation, so that it may cause the turbocharger shaft and the sleeve between the "burn" and damage the bearings and shaft. In addition, the engine suddenly stalled, the exhaust manifold temperature will soon be delivered to the turbocharger housing, the oil inside the turbocharger will overheat and deterioration, and even generate carbon. The accumulation of excessive carbon deposition on to block the inlet, to accelerate the turbine shaft and sleeve wear between The correct way is to turn off: turn off the engine idle before three to five minutes, until the turbocharger rotor speed is reduced and the oil temperature down, then stall parking in the exercise of the process, the non use of "speed - turn off - the gap glide" method of operation, it will also stop the supply because the oil pump damaged turbocharger.

In addition, to avoid prolonged idling engine, or also due to low oil pressure at idle, the turbocharger rotor shaft float affected, and the rotor shaft, bearings and seal rings and other parts of early wear and tear.

Links to free download http://www.hi138.com 3 select good quality engine oil
The role of the turbocharger, the air entering the combustion chamber greatly improved in the engine combustion chamber volume remains unchanged, is equivalent to increase the compression ratio, the engine of much higher intensity of work. Turbocharged engine high-precision machining, assembly technology, strict These are decisions the turbocharged engine in the high temperature, high speed, high-power, high torque, low-emission conditions. So the choice of turbocharged engines use oil, require the use of oil must have good anti-wear, heat resistance, easy to set up high-strength film is currently semi-synthetic motor oil or synthetic oil are to meet this requirement, so in addition to using the original oil, can also use the provisions of synthetic oil, high-quality semi-synthetic oil lubricant.

4 regular checks of the turbocharger sealing ring is invalid
If the turbine side oil seal failure, exhaust gas through the seal ring into the engine lubrication system, over time will cause premature failure of the oil, in addition, at low speed when the engine oil will be through the seal ring into the exhaust pipe from the exhaust discharge , resulting in the phenomenon of exhaust smoke, if the compressor side oil seal failure, pressurized oil inside the compressor housing will be fleeing, along with the air sucked into the combustion cylinder, resulting in excessive oil consumption, resulting in "burn oil "phenomenon, can also cause serious cylinder coke increased.

5 Regular oil changes
Turbocharger rotor shaft and its bearings with a very precise, if the oil is too dirty or bad, will bring impurities or other abrasive particles within the turbocharger, ranging from accelerated bearing wear, while in the rotor shaft and killed Therefore, we must regularly change the oil every oil change, oil filter is best to be replaced.

6 maintenance to professional
Turbocharger rotor bearings with high precision, maintenance and installation of the work environment is very strict, so when the turbocharger failure or damage when the professional service station maintenance.

In summary, the turbocharger engine, as long as master the correct method of operation and regular inspection, maintenance good turbocharger, turbocharger will not only greatly extend the life and improve the car's power, and also improve the economic use of the car.

References:
[1] <<turbocharger>> Standards Press of China .2009-05.

[2] Lu Jiaxiang <<diesel engine turbo technology>> Mechanical Industry Press .1999.09.

[3] known to the world respectively. <<Turbocharger principle, structure and use. "Defence Industry Press .1985.

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