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

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Replace oil and oil filter steps

Replace oil and oil filter steps

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.

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.


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