First, let’s take a look at the role of the filter element in the oil filter. In the oil filter, the filter element is mainly used in the filter lubrication system to filter out impurities in the oil to avoid scratching and pulling the surface of the components of the system. This damages the equipment and reduces the efficiency and service life.
In order to achieve a better filtration effect without increasing the oil resistance, the strainer is generally connected in series with the main oil passage, and the fine filter is connected in parallel with the main oil passage.
The main ways are as follows:
1. The structure of the centrifugal fine filter: the rotating shaft is fixed on the outer casing, the compression nut fastens the rotor cover and the rotor body, and the upper part is pressed by a spring to restrict the axial movement of the rotor, and two mutually formed under the rotor Reverse nozzle.
2. Float type oil filter, the large particle impurities in the lubricating oil must be removed before entering the oil pump. When the strength of the filter screen is overcome and the bad mouth is removed from the cover, the oil enters the suction pipe directly from the ring opening without passing through the filter screen.
3. The strainer is connected in series between the oil pump and the main oil passage to remove large impurities in the oil.
4. Fine filter: Its function is to filter out the smaller impurities in the lubricating oil, usually in parallel with the main oil passage, and there are two kinds of centrifugal and cardboard.