The engine cylinder fuels a fuel mixture with a temperature of 14-15 times greater than fuel. If the air intake system was not equipped with air-filter for such consumption, for example in the desert, the combustion chamber would have been filled with sand in one day. Purpose and principle of work
Purpose and principle of work
The air is outside the car. The conditions on board may be different and dust, asphalt particles, water and many other substances may be in the engine air. The air filter allows the air to be purged of most solid and liquid impurities.
Paper cartridge-"dry" air filter
During the automotive industry, manufacturers have tried a variety of materials for the production of engine air filters. The filter elements were Styrofoam, a wire mesh, a horse hair and much more.
The most common type of modern engine air filter is "dry" filters. They are arranged as follows: a plastic box is fitted with a cartridge in which a special form of special porous paper is inserted into the frame, not blinking even if the moisture inside the shell is hit. The fibers of this material are intertwined with each other, that they can hold even the most microscopic particles of dust and dirt.
A filter with a synthetic thread was used in a GAZ-21 Volga business class in a GAZ-21 Soviet car.
The air filter of the carboating engine is inserted in an oval or round box. Accordingly, in the form and type of the cartridge, the cartridge is significantly different from the injection filter in the rectangular frame. A carburetor filter is similar to a 3-D letter. A narrow long sheet of paper is placed between the front circular or oval frame and its back, forming the filter wall. Whatever the design and appearance of the cartridge, combines them with a single quality-filter element, unlike a box replacement.
Air filter resistance value
Virtually all air filters are opposed to the flow of air passing through them. This parameter is carefully calculated when the engine is designed and depends on the volume of combustion chamber, expected power and a number of other parameters. Some engines need a lot of air, especially when working on forced regimes. The air flow is particularly demanding with turbocharged engines. If the engine power is substantially increased by the installation of non-regular nodes (e.g., high performance turbines), it is advisable to replace the staffing corp with the filter element with a zero resistance filter. The filter may not be able to skip the desired amount of air at the time of the full buoist.
The zero resistance filter is bad for public roads, especially in the winter, when dirt flies from the road to the subpotic space
Typically, ordinary serial cars are fitted with filters with an average resistance of 0.6%. If this is a factor that affects the power, it is very small. The engine will only fall if the filter is contaminated.
Why the air filter has been replaced
During the operation of the filter, the dirt accumulates gradually, first on the outer surface and then on the inner surface, which makes the passage of the air more difficult. As a result, the engine lacks oxygen to burn fuel. If the engine is a carburette, this may lead to the operation of the blended mixture, as the mechanical doser does not have sufficient capacity to adjust the fuel feed. However, modern injection engines can measure incoming air and calculate the desired amount of fuel. However, the injection engine's capacity to increase the filter's resistance will drop significantly.
Alternative air filter
Before the replacement paper cartridges were available on internal combustion engines, the so-called "wet" filters were used. This filter is the cylindrical shape inside which there is liquid-mineral oil, as well as the filter element itself-a rubber or metal mesh. In the most "ancient" constructions, for example, the system of GAZ-21 "Volga" intake as a filter material used horse hair. The "Wet" filters until the end of the 1990s were used on UAZ-3151 engines, modified version of SUAZ-469 SUV.
The numerous latches on the air filter cover are used for sealing. The air pump will not only pollute the filter ahead of time, but it will also disrupt the smooth functioning of the intake system
The air purification process in the "urine" filter is divided into two stages: the air falls through the neck of the hull, and then changes its direction. The dust and dirt particles settle in the oil. In the second stage, the air passes through the grid, which filters out even smaller particles of dirt.
This type of filter has multiple disadvantages. First, they miss about 1-2% of the dust in the engine, and the second design uses metal elements that complicate processing. Therefore, this type of air filter goes into the past.
One of the leading zero-resistance filter manufacturers-Apexi-releases oil for impregnation of filters under its own brand
Another air filter is a reduced resistance filter. The main difference from other filters is the installation without a box. The Nelevik has its own body, which contains a filter material-cotton cloth or oil impregnated with oil. Due to the properties of these materials, such a filter provides minimal resistance to air flows. Its advantage is the ability to reuse when other filters are reusable. To do this, you need to wash the shampoo with the shampoo and re-soak the special oil. The oil is based on a distinctive smell like the smell of the leaf.
Air filter considerations
There is a delusions in motorists that a dry paper filter can be reused if we wash it. This manipulation will not lead to anything, because pollution is collected not only on the surface of the filter, but also penetrates into the depths, and it is no longer to be washed away. For this reason, the filter must be replaced.
Interesting facts about air filters
Manufacturers are testing air filters for the transmission of dust and air purging. According to ISO standards (International Standards Organization), the testing requires special sand, which is the state of Arizona, North America. Therefore, the European and Asian filter manufacturers have to import it.
