Function of the air cleaner is to provide clean air for the internal combustion engine, and to prevent abrasion and increase the chances of damage to the engine air intake with foreign particles during operation.
1. The action of the air cleaner
The main components of the air cleaner housing and the filter, wherein the filter cartridge is the main part, bear the working gas filter, and the cabinet is to provide the necessary protection for the external filter structure. An air cleaner is working can afford high efficiency air filter work, without excessive increase of air flow resistance, and long time continuous operation.
During operation of the engine to suck in the large amount of air intake, if the air does not pass through the filter, the dust suspended in the air to be drawn into the cylinder, and will accelerate the piston group wear of the cylinder. Larger particles entering between the piston and the cylinder can cause serious “pull-cylinder” phenomenon, which is particularly serious in the work environment in the dry and sandy. The air cleaner installed in front of the carburetor or intake manifold, the air acts to filter out dust, sand, a sufficient amount to ensure that the cylinder into the clean air.
In automobilesThe hundreds of thousands of parts, the air filter part is a very modest, because it is not directly related to the technical performance of the car, but in actual use of an automobile, but then the air cleaner cars (especially have a great impact on engine) life. In one aspect, if there is no filtering action of the air filter, the engine will contain a large amount of dust inhalation, air particles, leading to serious engine cylinder wear; on the other hand, if during use, do not give a long maintenance, air filter Nianman filter cartridge will clear the air of dust, which not only makes the filtering capacity decreased, but also prevent air circulation, the mixture is too thick resulting in the engine not working properly. Therefore, regular maintenance of the air filter is critical.
2. The air filter classification
The air cleaner and an oil bath are generally two kinds of paper. Since the paper filter having a high filtration efficiency, light weight, low cost, easy maintenance, etc., has been widely adopted. High filtration efficiency paper filter 99.5% or more, filtration efficiency filter in an oil bath under normal circumstances filtration efficiency of 95-96 percentage. The car air cleaner is widely used paper filter, divided into dry and wet two. Of the dry filter, once immersed in the oil or water, filtration resistance increases abruptly, and therefore avoid contact with the water or cleaning fluid, or to be replaced with new parts.
during engine operation, the intake is discontinuous, thereby causing vibration of the air inside the air cleaner case, if the air pressure is too volatile, sometimes affect the intake of the engine. In addition, at this time willIncrease the intake noise. To suppress induction noise, can increase the volume of the air cleaner housing, some still in the separator which is arranged to reduce the resonance.
The air cleaner filter cartridge into a dry and wet the filter two. Dry the filter material is filter paper or a nonwoven fabric. In order to increase the air passage area, most of the filter processing many small wrinkles. When the filter slightly offset, compressed air blowing may be used, when the filter is heavily soiled should be replaced with new core.
using a wet filter-based polyurethane sponge-like material, should be fitted with a number of oil dropping, kneading by hand, to adsorb foreign matter in the air. If the filter after fouling can be cleaned with cleaning the oil, excessive fouling should be replaced with new filter.
If the filter serious obstruction, will increase intake resistance, decreased engine power. At the same time due to increased air resistance, also increases the amount of fuel sucked into the resulting mixing ratio is too thick, so that the deterioration of the operating state of the engine, increased fuel consumption, but also prone to carbon deposition. Usually should always check the air filter element to develop the habit.