The oil filter currently used has two shortcomings, and the new product makes up for these two shortcomings, so it is necessary to use the new product strong magnetic oil filter.
Disadvantages 1: The current oil filter can only filter out 60% impurities in the oil, and the filtering efficiency is low;
This is because the existing oil filter intercepts and filters out harmful impurities in the oil through a single paper filter hole. The smaller the micropores of the filter paper, the better the filtering effect, but the worse the oil passing ability. In order to solve the contradiction that the smallest particles of impurities can be filtered out on the same filter paper micropore, and at the same time, enough engine oil can pass through the micropore. Tested by the Filter Branch of the National Internal Combustion Engine Industry Association, the test method of the filtering efficiency of the oil filter according to the ISO4548 international standard shows that the best oil filter on the market can only be designed to filter 60% impurities in the oil, which is the maximum filtering value obtained after thousands of experiments. In actual use, there are still 40% harmful impurities that cannot be effectively filtered by paper filter elements. Among these 40% impurities, ferromagnetic impurities are the most and do the greatest harm to the engine because they are relatively small and hard.
Disadvantages 2: The oil filter currently used has zero filtration efficiency under special conditions;
The existing oil filters are all equipped with a bypass valve at the bottom of the paper filter element, which is a direct oil flow channel to ensure the smooth circulation of oil back to the engine when the engine has high viscosity during cold start or when the paper filter element is partially or completely blocked. When the oil opens the bypass valve under the pressure of the oil pump, the oil circulating back to the engine through the bypass valve cannot be filtered by the paper filter element, and the large particles of impurities filtered by the paper filter element will be washed back to the engine through the bypass valve, which will bring uninterrupted secondary wear to the engine. Therefore, the oil filter used now has no filtering effect at all under special circumstances, so the filtering efficiency at this time is zero.
From the above two shortcomings, it can be seen that the existing oil filter can not permanently filter impurities larger or smaller than the micropores of the paper filter, but can only permanently filter impurities equivalent to and embedded in the micropores of the paper filter, so the filtering efficiency is extremely low.
Second, what is the filtering effect of the new product Daji brand strong magnetic oil filter?
The filtration efficiency of Daji brand strong magnetic oil filter can reach 97. 16%, which can improve the impurity filtration rate of existing oil filter by 37. 16%.
3. Will the use of Daji brand strong magnetic oil filter interfere with the electronic components on the car? What is its magnetic shielding effect?
Daji strong magnetic oil filter has a strong magnetic filter element in the central tube of the filter. After the strong magnetic field of the filter element is shielded by the central tube and the shell, the outer surface is only 0.3mT when filtering, which is 6.6 times lower than the national standard value of magnetic field shielding, and the standard value is ≤2mT, which will not interfere with and affect any electronic components used in vehicles and the surrounding environment.
Four, Daji brand strong magnetic oil filter compared with the existing so-called magnetic filter or magnetizing device in the market.
There are generally five kinds of magnetic oil filters or magnetizing devices on the market:
1, concept hype.
This kind of oil filter can't see the existence of magnetic products or detect magnetism at all, whether outside or inside. It is a fake name added to the existing ordinary engine oil filter, in order to sell high prices and deceive consumers.
2. Install a magnetizing device with a shielding layer on the housing of the existing common oil filter.
It is a good idea that this magnetizing device is attached to the existing filter shell through a fixed structure or by using the magnetic force of the magnet itself, so as to absorb ferromagnetic impurities in the engine oil in the filter. However, in actual use, because most of the magnetic field is shielded by the oil filter housing, the magnetic field utilization efficiency is extremely low and basically does not work. In addition, when the vehicle runs on the bumpy road, it is easy to cause oil leakage or filter falling off, which will cause immeasurable damage to the vehicle.
3. Directly adsorb one or several magnets on the surface of the existing common oil filter housing.
This kind of magnet is directly attached to the shell of the existing oil filter. Whether it is attached to the side or bottom of the oil filter, it can not only filter, but also interfere with the normal work of other electronic equipment in the car, which is very dangerous and has serious consequences.
4. Install the magnet on the bypass valve housing.
When the filter works normally, the bypass valve is closed, and the oil is circulated back to the engine through the paper filter element. In this state, the main oil flow rarely touches the position of the bypass valve. Therefore, setting magnets on the shell of the bypass valve will not only have little effect on filtering ferromagnetic impurities, but also lead to the failure of the bypass valve, so that the circulating oil can directly flow back to the engine through the bypass valve, resulting in non-ferromagnetic impurities not being effectively filtered by the paper filter element, or blocking the bypass valve and suffocating the paper filter element.
5. Daji brand strong magnetic oil filter.
Daji strong magnetic oil filter is equipped with a strong magnetic filter element in the central pipe near the oil outlet of the oil filter, which has the following design features and advantages:
(1) The magnetic shielding layer is replaced by the filter's own shell and central tube, which realizes the double-layer shielding of the strong magnetic field outside the filter shell, preventing the strong magnetic field of the strong magnetic filter element from leaking out and interfering with other equipment;
(2) The strong magnetic filter element can fully contact the engine oil, and the magnetic field utilization rate is100%;
(3) Set the strong magnetic filter element in the central pipe near the oil outlet, which is the most spacious place in the filter. The strong magnetic filter element will not cause resistance to oil circulation, even if there are many impurities adsorbed on the strong magnetic filter element, it will not have any influence on oil circulation, and it is far away from the bypass valve, thus avoiding the influence of strong magnetic field on the bypass valve. Moreover, this is the only way for oil and impurities, which can filter out all impurities flowing through the filter to the maximum extent;
(4) After testing, the impurity filtering effect of Daji brand strong magnetic oil filter reaches 97. 16%. Can improve the impurity filtering rate of the existing oil filter by 60% by 37. 16%,
5. Why is the new product called strong magnetic oil filter?
The magnetic filter element of the new product Daji brand strong magnetic oil filter is made of permanent magnet NdFeB strong magnetic steel with the strongest magnetism in the magnet family, and its super magnetic force is 10 times that of ordinary magnets. In addition, in order to distinguish it from the so-called magnetic filter element that appeared in the market in the past, the new product is named: strong magnetic oil filter.
Six, several models have applied all-aluminum engines. Is it still useful to apply strong magnetic oil filter?
At present, all the all-aluminum engines in the world are conceptual, that is to say, at best, the engine body shell, cylinder head, cylinder shell and other fixed parts are magnesium-aluminum alloy materials, but more than 90% of the moving parts such as crankshaft, camshaft, rocker arm, piston ring, valve, valve guide and bearing in all-aluminum engines are iron-containing materials. When the engine is working, the engine body shell made of aluminum-magnesium alloy will not wear. Only its moving parts will be worn, and ferromagnetic impurities will be produced when worn, and abrasive particles will be formed between the moving parts with the oil circulation, which will cause uninterrupted wear to the engine. Therefore, the strong magnetic filter element in the strong magnetic oil filter will still effectively filter out harmful impurities in the all-aluminum engine and protect the safety of the engine.
7. Will ferromagnetic impurities filtered by the strong magnetic oil filter be brought back to the engine with the increase of service time or demagnetization of the strong magnetic filter element, causing secondary damage to the engine?
The new product Daji brand strong magnetic oil filter is a strong magnetic filter element made of permanent magnet NdFeB strong magnetic steel, which will not be demagnetized due to the use time and environment. Science has proved that there are only two ways to demagnetize permanent magnet steel:
One is to demagnetize it by alternating electric field with equipment. This will not happen when using a strong magnetic oil filter;
The other is that the magnetic field of high-strength magnetic steel will be lost or disappeared when the ambient temperature is higher than its design temperature resistance parameter. Because the magnetic filter element we use is N30SH high-temperature resistant NdFeB high-strength magnetic steel, theoretically resistant to temperature 150℃ and will not demagnetize. In fact, we have tested at 135℃ for a long time without demagnetization. The normal working temperature of the engine is between 85℃ and 95℃, and even under special circumstances, the limit temperature does not exceed 16544.
Because the above demagnetization conditions are not met, the strong magnetic filter element of the new product Daji brand strong magnetic oil filter will not be demagnetized due to the influence of high temperature of the environment or other factors, so it will not bring secondary wear to the engine.
Eight, some models are equipped with magnets on the oil drain screw of the oil pan. Is it necessary to use a strong magnetic filter for such vehicles?
According to statistics, at present, some manufacturers do have a small magnet on the oil drain screw of their own automobile oil pan, in order to absorb the damaged ferromagnetic objects in the engine or the ferromagnetic impurities deposited on the magnet. However, due to the large area of the engine oil pan, when the oil falls back to the oil pan, there is little chance that iron impurities can contact the magnetic block at the oil drain screw, and most of the ferromagnetic impurities contained in the oil cannot be filtered. The new product Daji brand strong magnetic oil filter is the only way for oil and impurities, and the strong magnetic filter element is arranged on the main oil path of oil. It can absorb all ferromagnetic impurities in engine oil in the first cycle after ferromagnetic impurities are produced, and effectively prevent ferromagnetic impurities from wearing the engine. Therefore, it is a car with a small magnet on the oil drain screw of the automobile oil pan. Installing a new brand of Daji strong magnetic oil filter has the same protective effect on the engine.
9. What kind of product is Daji brand strong magnetic oil filter?
Daji brand strong magnetic oil filter is an innovative product of patent invention transformation, an upgraded product of the common oil filter currently used, and also the product with the highest filtration efficiency at present. Daji brand strong magnetic oil filter protects and prolongs the service life of the engine to the maximum extent.
10. Is Daji brand strong magnetic oil filter approved by authoritative organization?
The new product Daji brand strong magnetic oil filter has been tested and identified by Jilin Automobile Parts Testing Institute, which can remove 97. 16% ferromagnetic impurities in the engine, and the filtering effect is improved by 37. 16% compared with the existing oil filter. This product is supported by the Innovation Fund of the Ministry of Science and Technology.
XI。 What is the quality of the paper filter used in the strong magnetic filter?
The new product Daji brand strong magnetic oil filter completes and improves the filtration quality through the double filtration of strong magnetic filter and paper filter, so the quality of paper filter used is also very important. The paper filter used in the new product Daji brand strong magnetic oil filter is produced by the oil filter enterprises supporting Chery and Jianghuai Automobile. The quality meets the national standards and the quality requirements of enterprises and automobile manufacturers, and is completely consistent with the products provided to automobile supporting factories.