Shanghai, November 3, 2010—Air filter cartridge seals are usually made of Polyurethane Foam (PUR). In order to ensure a tight seal between the air filter element and the air filter housing, the seal must meet stringent requirements. . The sealing strip needs to have extremely high elasticity and heat resistance. The choice of a suitable seal shape is also a decisive factor in the quality of the seal between the filter element and the air filter housing. Seals for MANN+HUMMEL filter products are suitable for individual housings. Engines sometimes reach very high temperatures, such as those used in low-pressure exhaust gas recirculation systems, so MANN+HUMMEL filters use silicon with a heat-resistant temperature of up to 150 degrees Celsius to meet the needs of car manufacturers. If the product does not meet the manufacturer's requirements in terms of material properties or shape, serious adverse consequences can occur. If the sealing strip is too hard, the filter element is difficult to install and the shell may be deformed due to the gradual increase in the applied force. This will quickly cause the air filter seal to loosen, allowing fine dust particles to enter the filter surface. These dust particles can eventually damage downstream components such as air flow meters, turbocharger compressor end impellers, pistons, cylinders, and the like. Dust particles, like the sand blaster, can cause some parts to be severely deformed, such as the impeller on the turbocharger's compressor side, which can also cause damage to the air flow meter. In this case, the amount of available air cannot be measured accurately. Therefore, optimal combustion cannot be achieved and fuel economy is reduced. The engine control unit of a modern vehicle will generally switch the engine to the emergency mode required by the Euro 5 and Euro 6 standards. If the engine does not burn normally, these emission standards will not be met, which is the worst case caused by loose seals. When replacing air filters, the MANN+HUMMEL filter recommendation is to always use OE-qualified products to avoid increased vehicle wear, engine damage, and reduced performance. In addition, it is also important to check the sales label in the MANN Filtration product catalogue before installing the filter to ensure that your vehicle uses the proper filter; use a vacuum cleaner to clean the air intake side of the air filter housing; Make sure the position of the new filter element is correct. The position where the filter should be installed is usually indicated on the filter element or the air filter housing. The MANN+HUMMEL Group is dedicated to the development and supply of original ancillary equipment for the international automotive and construction machinery industries. At present, the MANN+HUMMEL Group has 11,800 employees in 41 regions around the world. In 2009, the company's turnover reached 1.67 billion euros. In the automotive industry, MANN+HUMMEL products include multifunctional plastic air filtration systems, intake manifold systems, liquid filtration systems, air conditioning filters and cylinder head covers, and filter cartridges for after-sales service and maintenance of vehicles. In general engineering, process engineering and industrial manufacturing, MANN+HUMMEL's product range includes industrial filters, a range of products that reduce the carbon emissions of diesel engines, membrane filters for water treatment, filtration systems, and material handling systems. equipment. Lift Door Controller,Door Controller,Elevator Controller Sanjin Elevator Fittings Co., Ltd. , http://www.xaelevator.com
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January 11, 2019