What does oil filter assembly mean.
Gasoline filter assembly for cars
The oil filter assembly refers to the gasoline filter assembly of the automobile, which is composed of the oil pump and the filter element. The main function of this assembly is to remove impurities such as dust, metal particles, carbon precipitates and soot particles from the oil to protect the engine. The oil filter assembly, also known as the filter, is located in the engine lubrication system, the upstream is the oil pump, and the downstream is the parts that need to be lubricated in the engine. The gasoline filter needs to be replaced every 20,000 kilometers to ensure the normal operation of the engine and extend the service life.
The working principle of the oil filter is generally divided into mechanical separation, centrifugal separation and magnetic adsorption according to the impurity filtration method. Mechanical separation includes pure mechanical separation, overhead separation and adsorption separation, centrifugal separation refers to the oil through a high-speed rotating rotor, so that the impurities in the oil by centrifugal force is thrown to the inner wall of the rotor, so as to separate from the oil. Magnetic adsorption is to use the magnetic force of a permanent magnet to adsorb the iron particles in the oil to prevent them from circulating back and forth in the oil lubrication system, endangering engine parts.
In summary, the oil filter assembly is not a filter screen, but an assembly composed of the oil pump and the filter element to protect the engine from impurity damage. It is the same thing as the oil filter, also known as the filter.
What is the oil filter construction
The oil filter is located in the engine lubrication system. Its upstream is the oil pump, and the downstream is the parts that need to be lubricated in the engine. Its role is to filter out harmful impurities in the oil from the oil pan, and supply the crankshaft, connecting rod, camshaft, supercharger, piston ring and other moving pairs with clean oil, play the role of lubrication, cooling, cleaning, so as to extend the life of these parts.
According to the structure of the oil filter is divided into replaceable, rotary, centrifugal; According to the arrangement in the system can be divided into full-flow, shunt type. The filter materials used in the oil filter are filter paper, felt, metal mesh, nonwovens and so on.
Due to the large viscosity of the oil itself and the high content of debris in the oil, in order to improve the filtration efficiency, the oil filter generally has three levels, which are the oil collector filter, the oil coarse filter and the oil fine filter. The filter is installed in the oil pan in front of the oil pump, and generally adopts metal filter screen type. Oil coarse filter is installed behind the oil pump, and the main oil channel in series, mainly metal scraper type, sawdust filter core type, microporous filter paper type, and now mainly use microporous filter paper type.
How often should the oil filter assembly be changed
The oil filter assembly is generally recommended to be replaced every 5000 km or half a year. This recommendation, based on the consistency of multiple sources, emphasizes the importance of the oil filter in protecting the engine from impurities. The main function of the oil filter is to remove impurities such as dust, metal particles, carbon sediments and soot particles in the oil to ensure that the engine gets clean lubricating oil, thereby extending the service life of the engine.
The replacement cycle varies for different types of oil. For vehicles using mineral oil, it is recommended to replace the oil filter every 3000-4000 kilometers or half a year; Vehicles using semi-synthetic oil are recommended to be replaced every 5000-6000 kilometers or half a year; For vehicles using fully synthetic oil, it can be extended to 8 months or 8000-10000 km for a replacement.
In addition, in some cases, if the vehicle is used less, such as less than 5,000 kilometers in half a year, in order to ensure the shelf life of the oil and the normal operation of the engine, it is still recommended to replace the oil and oil filter at half a year.
It is a good practice to follow the recommended replacement cycle in the vehicle maintenance manual, as the manual usually gives more accurate guidance based on the specific use of the vehicle and the manufacturer's recommendations.
In harsh environmental conditions, such as dusty or high-temperature environments, it may be necessary to shorten the replacement cycle to ensure optimal engine protection.
In summary, the replacement cycle of the oil filter mainly depends on the type of oil used by the vehicle, the mileage and the use environment of the vehicle. The owner should check regularly and adjust the replacement cycle according to the actual situation to ensure the best protection of the engine.
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