Customized Production Of Passenger Car Air Filter Elements With High Efficiency , Weather Resistance , Stability And Easy Installation

Customized Production Of Passenger Car Air Filter Elements With High Efficiency , Weather Resistance , Stability And Easy Installation​

The automotive air filter (AAF) is the "first line of defense" in the engine's air intake system. Its core function is to filter impurities from the air entering the engine, preventing dust, sand, and debris from damaging the engine's precision internal components (such as cylinders, pistons, valves, and spark plugs). It also ensures air intake efficiency, indirectly affecting the engine's power, fuel consumption, and lifespan. Its core features can be expanded from the perspectives of core function, structural design, material properties, compatibility requirements, and use and maintenance, as follows:
 

High-Efficiency Filtration

1. Filtered Objects: Airborne dust (particle size 5-50μm), sand, road dust, pollen, insect debris, leaf fibers, and other solid impurities. In extreme environments, it may also filter small amounts of water mist (to prevent moisture from entering the cylinder and affecting combustion).
2. Filtration Accuracy: Mainstream air filters have an interception efficiency of over 95% for impurities ≥10μm and ≥85% for fine dust 5-10μm. This accuracy prevents impurities from scratching the cylinder walls (resulting in reduced air tightness and accelerated oil loss), wearing piston rings (causing oil burning), and clogging spark plugs (causing misfires and reduced power).
3. Core Value: If the air filter is missing or not replaced for an extended period, impurities will form "abrasives" inside the engine, shortening engine life by 30%-50% and significantly increasing maintenance costs.

The core features of passenger car air filters can be summarized as "precise filtration, adaptive intake, weather-resistant and stable, and on-demand maintenance": through customized structure and adaptive materials, they intercept impurities and protect the engine while ensuring that intake efficiency is not reduced; their selection must strictly match the vehicle model and engine type, and the replacement cycle must be adjusted according to the environment during use to avoid major damage to the engine due to failure of small components. Unlike the air conditioning filter (which protects the air inside the car), the air filter is directly related to the "heart health" of the engine and is a key component that cannot be ignored in passenger car maintenance.