G-277 6NW009420 Electronic Actuator Turbo

G-277 6NW009420 Electronic Actuator Turbo

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02Apr
- Precautions when using turbocharger
  Precautions when using turbocharger Because turbochargers often work at high and high temperatures, the exhaust turbine end temperature of the turbocharger is about 600°C, and the rotor of the turbocharger rotates at a speed of 8000-11000r/min. Therefore, in order to ensure the normal operation of the turbocharger, the following points should be paid attention to during the operation:Don't leave without a carAfter the engine is started, especially in winter, it should be left idle for a period of time so that the lubricating oil can fully lubricate the bearings before the turbocharger rotor runs at high speed. Therefore, you must not hit the accelerator just after starting to avoid damaging the oil seal of the turbocharger.Do not extinguish it immediatelyAfter the engine has been running at high speed for a long time, do not turn it off immediately. When the engine is working, part of the engine oil is supplied to the turbocharger rotor bearings for lubrication and cooling. After the engine suddenly stops running, the oil pressure quickly drops to zero, the turbocharger turbine diffuses to the middle of the high temperature, the bearing shell heat cannot be quickly taken away, and the turbocharger rotor is still under high-speed inertia. Therefore, if it stops suddenly, The engine's thermal conditions will cause the turbocharger to stay in the oil and overheat, and damage the bearings and shaft. Especially to prevent the throttle from suddenly closing a few feet later.keep cleanWhen disassembling the turbocharger, please keep it clean. Each pipe joint must be plugged with a clean cloth to prevent debris from falling into the turbocharger and damaging the rotor. During maintenance, the impeller should not be damaged by collision. If the impeller needs to be replaced, a dynamic balance test should be carried out. After reloading, clear the blockage.To be cleanedAs the supercharger often runs at high temperatures, its lubricating oil pipeline is prone to coking due to the high temperature, and the internal oil is prone to partial coking, which will result in insufficient lubrication of the supercharger bearing and damage. Therefore, the lubricating oil pipeline should be cleaned after a period of operation.Pay attention to maintenanceBefore leaving the vehicle and after receiving the vehicle, the connection of each pipe in the airway should be checked to prevent the supercharger from malfunctioning and short-circuiting of air into the cylinder due to loosening and falling.Therefore, it can be seen that after the engine is supercharged, the structure of the parts has been strengthened. In terms of use and maintenance, the engine must be strengthened and the correct control method must be adopted.
26Feb
- Brief description and working principle of turbo
  Brief description and working principle of turbocharger impellerTurbine impeller is a kind of rotating power machinery, which converts the energy of the flowing working medium into mechanical work. This is one of the main components of aero engines; gas turbines and steam turbines; turbochargers for automobiles and ships.For every kilogram of gasoline injected into the cylinder, approximately 15 kilograms of air are needed to ensure that the fuel burns properly. However, the 15 kg of air volume will be very large, and it is difficult to completely absorb such a large volume of air through the vacuum generated by the cylinder during the engine intake process. Therefore, it is particularly important to improve the engine's air intake capacity, that is, to increase the engine's charging efficiency. There are two ways to increase the amount of air entering the engine. The first is the rear liftPressure technology, in principle, is a post-pressurization technology. It uses a special compressor to pre-compress the gas before entering the cylinder to increase the density of the gas entering the cylinder and reduce the density and volume of the gas. Therefore, in a unit volume, the gas The mass is greatly increased, and the amount of air taken in meets the needs of fuel combustion, so as to achieve the purpose of increasing the engine power. The compressor used during pressurization is also called a supercharger. The second is the forward intake technology, which still uses the vacuum of the cylinder to fill the cylinder with air from the intake branch. Regardless of the technology, controlling the air inlet is the key.
28Jan
- Use of turbocharger
  Nowadays, many domestic gasoline engines have applied exhaust gas turbocharger technology. This technology can not only increase power, but also increase torque. However, some problems should be paid attention to when using engines with this structure, otherwise it will cause turbines. Premature damage to the supercharger.　　 First, let's talk about the general structure of the turbocharger. The exhaust gas turbocharger is mainly composed of a pump wheel and a turbine, and of course there are other control elements. The pump wheel and the turbine are connected by a shaft, that is, the rotor, which is driven by the exhaust gas from the engine.　 Pump wheel, the pump wheel drives the turbine to rotate, and after the turbine rotates, it pressurizes the intake system. The supercharger is installed on the exhaust side of the engine, so the working temperature of the supercharger is very high, and the rotor speed is very high when the supercharger is working, which can reach hundreds of thousands of revolutions per minute, such a high speed and temperature As a result, common mechanical needle rollers or ball bearings cannot work for the rotor. Therefore, turbochargers generally use full floating bearings, which are lubricated by oil, and coolant is used for cooling the supercharger.　　 Therefore, for this structural principle, some problems should be paid attention to when using this engine: 1. After the engine is started, run it at idle speed for a while, so that the lubricating oil reaches a certain working temperature and pressure, so as to avoid accelerated wear and even jamming due to the lack of oil in the bearing when the load is suddenly increased. 2. When the vehicle is parked, the supercharger rotor has a certain inertia, so the engine should not be turned off immediately. It should be idling for a period of time to make the temperature and speed of the supercharger rotor gradually drop. Immediately turning off the flame will cause the oil to lose pressure, and the rotor will not be lubricated when it rotates by inertia and will be damaged. 3. Frequently check the amount of engine oil to avoid bearing failure and blocking of rotating parts due to lack of engine oil. 4. Regularly replace the engine oil and engine filter. Because the full-floating bearing has high requirements for lubricating oil, you should use the engine oil specified by the manufacturer. 5. Regularly clean and replace the air filter element. Dirty air filter will increase the air intake resistance and reduce the engine power. 6. Frequently check the airtightness of the air intake system. Air leakage will cause dust to be sucked into the supercharger and engine, and damage the supercharger and engine. 7. Because the turbocharger actuator manufacturer's turbocharger rotor bearing has high precision, the working environment requirements for maintenance and installation are very strict, so when the turbocharger fails or is damaged, you should go to the designated repair station for repair .