August is when the weather is the hottest. Master Zhang is standing in the repair shop, waiting for the final judgment of the repair master. After a while, the maintenance master put down the tools in his hand and told Master Li, "The valve head broke and fell into the cylinder and damaged the cylinder head and piston." "How could this happen? My car has never had this problem. "Master Li was puzzled.
When there is a problem, you have to find out where the root of the problem is, and the maintenance master inspects it, and finally finds that the problem lies in the air filter. At the first sight of the air filter, he knew that the quality of the air filter was not good.
"How much did you buy the air filter?" The maintenance master asked while picking up the air filter, "50 yuan is the reason for the air filter? No, I change it very often." Master Zhang said, "The quality is not good. It’s useless to change it frequently. Dust and impurities will still enter the engine. The most common ones are wear and tear on pistons, rings, and cylinder liners. It is still rare for your valve head to break.
When the air filter system fails, a large amount of dust will be sucked into the intake duct, stuck on the intake and exhaust valves, mixed with the oil to form sludge, and burned at high temperatures to deposit carbon, accumulating over time, the carbon deposits become more and more. The thicker, the worse the heat dissipation effect of the parts.
In addition to the formation of carbon deposits, these dusts enter the ducts, causing serious wear of the valve stems and ducts. In addition, the heat dissipation after the carbon deposits is not good, and valve hairpin becomes more likely to occur.
In high-speed working conditions, the engine runs at high speed, and the valve only needs to be stuck once, no matter what the model, it is enough to drink a pot! In this way, it is easier to understand why it turns around!
It turns out that this year’s sudden epidemic has made the freight industry where freight rates are not high, even worse. Master Zhang only started shipping cars at the end of March, but many factories have stopped work because of the epidemic, and the supply of goods is poor. Master Zhang ran down a month. There is not much money left, so I just wanted to save some on accessories.
He heard from some card friends that it would be okay to use a cheap air filter, as long as it was replaced frequently, so he bought two air filters in a roadside store. After the purchase, Master Zhang replaced the air filter with his own hands and continued to leave the car as usual. As a result, it only took a few months before the above problem appeared.
Through the science popularization of the maintenance master, Master Zhang also regretted that he should not use inferior air filters to save tens of dollars. In the end, this result was caused. The maintenance cost was enough to buy dozens of air filters!
Speaking of air filter, Xiaomei had to amuse herself. Anhui Meiruier Filter Co., Ltd. is a national high-tech enterprise integrating R&D, production and sales of Oil filters, diesel filters and air filters. There are more than 3,000 varieties, and the products are suitable for various car models at home and abroad.
The filter products it produces are deeply loved by card friends. Meiruier's air filtration system uses a two-stage filtration scheme on trucks and buses.
Compared with the traditional iron shell air filter, the all plastic air filter is lighter in weight and more in line with the requirements of modern automobile lightweight design; the anti rust performance of the all plastic air filter is good, which can avoid the secondary pollution caused by product corrosion; the installation position of all plastic air filter can be adjusted 360 degrees around the axis, and the same product can be easily assembled in different models, which can better meet the needs of customers.
PU filter element is generally used in plastic air filter. Radial seal refers to the way that PU filter element and air filter shell are sealed by interference fit. The upper end of Pu air filter element is equipped with a multi-stage step guiding installation structure, which can quickly filter the guiding installation size to the radial seal size, and improve the operability of the filter element disassembly and assembly, and ensure the sealing reliability.
Non-winding structure air filter products are prone to uneven folding distance and filter paper folding phenomenon in the process of use, sometimes resulting in larger area of filter paper can not work. This innovative technology of winding structure solves this problem very skillfully. It sticks the filter paper on the filter paper by winding the wire, fixing the relative position between the folding and folding of the filter paper, so as to ensure that the folding distance of the air filter element is uniform and the strength is more reliable. It effectively overcomes the defect of reducing the effective filtering area caused by the parallel folding of the filter paper, and realizes the full utilization of the filter material of the filter element.