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  • How does the oil filter work?

    How does the oil filter work?

    2019-10-18

    Engine oil plays a very important role in the engine. It helps to cool the engine by transferring heat. Sealing the gap between the piston ring and the cylinder wall; absorbing contaminants; and suspending soot particles as combustion residues. Contaminants can be organics such as fungi and bacteria in the air. Inorganic particles can be a lot of things, including dust that is drawn into the engine during operation. The outside of the filter is a metal can with a gasket that can be fastened to the mating surface of the engine. A gasket is attached to the base of the can and a hole is formed around the area inside the gasket. The center hole is threaded to mate with the oil filter assembly on the engine block. The inside of the jar is a filter material, the most common being synthetic fibers. The engine's oil pump moves the oil directly to the filter and then enters the oil filter from the hole in the perimeter of the base plate. Dirty oil passes through the filter media and then returns through the center hole where it re-enters the engine. Typically, filters have two media types: primary and secondary. The primary medium can block particles as small as 25-30 microns (human hair size is 65-70 microns) and the secondary medium can block particles as small as 5-10 microns.

  • Replace oil and oil filter steps

    Replace oil and oil filter steps

    2019-08-12

    1 Run the machine to warm up, stop and close the air outlet valve, and unscrew the fuel plug one turn to let the system relieve pressure. 2 Open the drain valve and drain the oil. After draining the oil, close the valve and transport the oil to the local waste oil treatment center. 3 Remove the oil filter. 4 Clean the oil filter holder, add lubricant to the gasket of the new oil filter, and tighten the oil filter by hand. 5 Remove the filler plug and refuel until the oil level reaches the plug. Retighten the filler plug. 6 Run the machine for a few minutes, stop, and wait a few minutes for the oil level to stabilize. Allow the system to relieve pressure by unscrewing the filler plug. Refuel until the oil level reaches the request and tighten the screw plug.

  • Precautions for using the filter

    Precautions for using the filter

    2019-08-09

    Precautions 1. All protective covers must be covered before the filter is started. It is forbidden to open it by itself during operation. 2. Every time the machine is turned on, the bottom valve of the machine should be opened and drained cleanly. During the operation of the machine, the bottom valve of the machine should be drained once every 4 hours to ensure the drying inside the tank. 3. Before starting any maintenance and repair measures: Press the stop button, turn off the power, close the air outlet valve, and unscrew the fuel plug one turn to depressurize the compressor. 4. It is forbidden to adjust the pressure adjustment switch by yourself. 5. If the equipment is to be removed from the main power cord or reinstalled, the motor steering must be checked and operated in the direction indicated on the fuselage. 6. During the operation, it is found that there is a collision or other abnormal sound should be stopped immediately, and the machine can be started after the fault is eliminated. 7. When cleaning, it is strictly forbidden to rinse the equipment directly with water, paying special attention to avoid splashing water on the electric control box. 8. Oil specifications: Never mix oils of different brands or models.

  • The role of air filtration and nanofiber filter media in heavy duty engines

    The role of air filtration and nanofiber filter media in heavy duty engines

    2019-08-03

    Engine air filters are developed based on filter performance requirements, vehicle operating environment, available space, filter media characteristics and production techniques. The design process includes analytical theory and empirical models describing the filter media properties and aerosol flow in the filter housing as well as the filter elements. Filter media carefully based on these models and simplified laboratory testing. The filter design was evaluated in great detail through a series of laboratory and field experiments. The role of the engine intake system has increased due to engine exhaust particulates and evaporative emission regulations. Engine life, engine emissions and fuel consumption depend on the design of the intake system and its performance. Providing an optimized solution to these requirements determines the trend of the filter. This has driven the need for smaller, more compact filters and more efficient permeability filter media. The efficiency can be significantly improved by applying a layer of nanofibers to the cellulose or synthetic substrate. The ISO fractional efficiency test method, in its final development stage, clearly shows the advantages of nanofiber filter media. The ISO fractional efficiency test method, in its final development stage, clearly shows the advantages of nanofiber filter media.

  • Filter material structure

    Filter material structure

    2019-07-26

    The structure of the filter material can be divided into two types: surface type and depth type. (1) surface type The surface type filter material is a fine filter mesh woven with a wire, and is also used in other forms such as wire winding. The filtration accuracy is determined by the size of the woven holes or the size of the wire gap. Any particles larger than the size or clearance of the aperture can not pass through just the ideal state, which is not practical in practice. The woven filter or wire is wound into a filter element having the same size of pores, and its filtering action only occurs on the surface of the filter screen, so it is called surface type filtration. As the dirt accumulates on the surface of the screen, its pores are constantly blocked, so that the pressure drop is gradually increased; the filtration efficiency is also lowered because the particles trapped in the mesh may be squeezed out of the mesh at any time. If it is desired to control the pressure drop within a certain range, the filter element should have a sufficiently large filtration area. This filter element can be reused after cleaning. (2) Deep filter media The deep filter media is made of fiber papermaking and has a certain thickness of filter media. The properties of this filter are quite different from those of surface type filtration. Its shape of the eyelet, the size is irregular, uneven, and the inner part is complicated by bending and twisting. Its filtering effect occurs not only on the surface of the filter medium but also in the depth of the filter medium, so it is called depth type filtration. Since the filter medium has a certain thickness and the passage is in all directions, its dirt holding capacity is much larger than that of the surface type filter, and the pressure drop is also much lower than that of the surface type filter. In addition, because of its wide range of pore size distribution, it can also filter out a large number of fine particles. For the depth filter, the fiber diameter constituting the filter medium has a direct influence on the filtration efficiency and other properties. A filter layer made of a relatively small diameter fiber can form more through holes in a unit area, and can also form more channels in the interior. Therefore, its filtration efficiency and dirt holding capacity are higher than those of the coarser fiber. For the same reason, its pressure drop is also smaller than the latter. Therefore, the filter element made of fine fiber has a long working life.

  • Maintenance knowledge about fuel water separator

    Maintenance knowledge about fuel water separator

    2019-07-12

    One: start inspection and preparation 1: Before using the water separator equipment, the driver's consent should be obtained. 2: Check the line installation of the fuel water separator, whether the steering of the supporting pump is normal 3: Water is supplied to the fuel water separator, and the top air valve is opened to allow air to escape. 4: Check the oil and water separation in the marrow water inlet and outlet system without any leakage Two: precautions during operation 1: Adjust the drain valve opening degree and keep the pressure inside the separator to facilitate the elimination of the oil in the separator. 2: Observe whether the gauges such as pressure gauges and thermometers are normal. 3: Observe the working condition of the treated drainage water quality and oil concentration alarm 4: After the discharge is over, it should continue to be poured into clean water for 15 minutes to clean the separator. 5: Close the inlet and outlet after the pump is stopped, avoid the loss of clean water in the cylinder, reduce the oxidation and corrosion of the inner wall. 6: Each time the fuel water separator is used for discharge, it should be recorded in the oil beauty record book. Three: maintenance 1: Regularly clean the filter, open the bottom of the separator to vent, and remove the sediment deposited in the lower part, impurities 2: Clean the internal separation components of the separator in time, and avoid cleaning the inner wall and components of the separator with a cleaning agent. 3: When a fault occurs, the cause should be identified and the failed coalescing component should be replaced in time.

  • The role of the air filter and the replacement cycle

    The role of the air filter and the replacement cycle

    2019-06-28

    An air filter is a device that purifies air. The air filter removes suspended particulate matter from the air entering the cylinder to reduce the wear of the cylinder and piston and piston ring to extend the life of the component. The air filter is a consumable item and is usually replaced once every 10,000 kilometers. The main requirements of the air conditioner are high filtration efficiency, low flow resistance, and continuous use for a long time without maintenance. · It is important to choose the right filter. Why do you say this? The main reason is that the bacteria dust in the summer air is abnormally active, and in other weathers, the filter may not feel anything, but the filter that is not suitable in summer will Shows the problem, because if you have pollen allergies and don't choose pollen filters or filters that filter well, then you are likely to be miserable while driving, and the summer air filter is better. For the protection of the body, pay special attention to the more hair, and a good filter can filter a lot of hair and dust, because the summer dry explosion often the road dust will float so good filter for summer road dust filter It is very good.

  • Filter PL420 can't replace filters PL421

    Filter PL420 can't replace filters PL421

    2019-06-21

    In the past, the PL420 was used as the first primary filter for the fuel tank girders. There is no pressure. The common rail is pressurized, and the PL420 is under negative pressure. Before the appearance of the electronic pressure pump, the transparent cup is very safe, there is no pressure damage to the transparent cup, but with the advent of the electronic pressure pump, the engine's two coarse filters change from negative pressure to 4 positive pressures or even greater pressure. The old-fashioned PL420 transparent cup has the risk of oil leakage. Some OEMs changed the PL420 on the engine to the PL421 without a cup. However, some OEMs did not consider this problem. They still loaded the PL420. (There are now Delong) there are design risks. It is recommended to use the filter PL421 for models equipped with an electronic pump. Filters PL420 and PL421, we can provide, if you need, please feel free to contact us.

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