What is the role of air filter pipe.
The role of the air filter pipe is to transfer the filtered air to the engine, which has the effect of reducing the intake noise, and can also avoid wear and damage to the transmitter.
The role of the air filter intake pipe is to effectively filter the dust and impurities in the air, so that the air purity into the combustion chamber increases, so as to ensure that the fuel is fully burned, and the air filter element becomes dirty, which will hinder the air passing through, reduce the intake volume of the engine, resulting in the engine power decline.
The role of the air filter intake pipe is to effectively filter the dust and impurities in the air, so that the air purity into the combustion chamber increases, so as to ensure that the fuel is fully burned, and the air filter element becomes dirty, which will hinder the air passing through, reduce the intake volume of the engine, resulting in the engine power decline.
The function of the air filter resonator is to reduce the intake noise of the engine. The air filter is installed in front of the resonator, and the resonator is installed on the intake pipe with two more cavities, and the two are easy to identify.
Background technology: There is no doubt that noise has become a major public hazard affecting people's comfortable life, and the automobile industry is no exception. Major automobile manufacturers also pay great attention to the improvement of nvh performance of vehicles while ensuring other performance of vehicles. The noise of the intake system is one of the sources that affect the noise of the car, and the air filter as a portal for the air to enter the engine, on the one hand, it can filter the dust in the air to avoid the engine from abrasion and damage; On the other hand, the air filter, as an expansion muffler, has the effect of reducing the intake noise. Therefore, the noise reduction design of the air filter is very important.
Most of the air filter designs are simple cavity structures, generally using a single round pipe to enter and exit the air, there is no significant change in cross-section, so it can not effectively increase the acoustic impedance, so as to improve the noise reduction effect; In addition, the general air filter is installed on the battery and the front baffle by bolts, the installation point stiffness is generally weak, and most of them can not effectively reduce the intake noise, and some even take into account the noise, access the resonator in the intake pipe, but this occupies the small engine room space of its own layout space, which brings inconvenience to the layout.
Although the air filter is equipped with a resonator, it can reduce noise to a certain extent, however, the cross-section of the intake pipe does not change, which is not conducive to further increasing the acoustic impedance to reduce noise, nor does it consider the factors that the height of the body is easy to be destroyed by vibration. In addition, the design of the air filter is large, which is not conducive to the arrangement of the rest of the accessories of the engine room, and has an impact on the stiffness of the installation point.
In order to realize the above purpose, the technical scheme adopted by the invention is: The automobile air filter structure comprises an air filter upper shell and an air filter lower shell, the air filter lower shell is provided with an air inlet chamber, a resonator chamber, a filter chamber and an outlet chamber, the air inlet chamber is provided with an air inlet port, the air outlet chamber is provided with an air filter outlet, the filter chamber is provided with a filter element, and the filter chamber is provided with a filter element. The air enters the air filter inlet and is discharged through the air filter outlet after the air filter inlet chamber, the resonator chamber, the filter chamber and the air outlet chamber in turn. The air inlet chamber is a pipe placed in the resonator chamber. One end of the air inlet chamber is an air filter inlet port, and the other end is provided with a connecting hole communicated with the resonator.
There are seven reasons for a large amount of oil in the air filter: 1. The air filter is blocked, resulting in excessive engine intake resistance, and there will be oil trenches at the engine air intake. The solution is to clean or replace the air filter. 2. The supercharger seal failure will cause oil channeling, and there will be oil in the air filter. The solution is to replace the supercharger seal. 3. Poor seal of valve oil seal will cause oil leakage of air intake, and there will be oil in the air filter. The solution is to replace the valve oil seal. 4. Too high oil pressure will cause too much oil mist in the crankcase, resulting in oil in the intake pipe and air filter. The solution is to pump out the excess oil. 5. Engine oil leakage is serious. The solution is to replace the piston and piston ring, drill a hole in the cylinder or replace the liner. 6. The positive pressure ventilation valve of the PVC valve is blocked or leaky, so that the crankcase is forced to ventilate and cannot operate normally. The solution is to clean or replace the positive pressure vent valve of the PVC valve. 7. The lower body pressure of the engine cylinder block is too high, usually caused by piston ring pollution. The solution is to clean the piston ring.
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