What are the main classifications of air filters?

Air filters vary in structure and weight, and there are different ways to classify them: By organizational form: single-stage, two-stage, multi-stage; By filtration level: coarse filtration, fine filtration; By filtration method: filtration type and swimming bath type;

2025-04-23

How often should I change my air filter?

The air filter is similar to the masks we wear on hazy days. Its main function is to block dust, sand, and other impurities in the air. Although this part is inconspicuous and inexpensive, it plays an extremely important role. Experiments have been conducted in the past. If a car's air filter is removed and driven normally, the cylinder wear is eight times that of a car with an air filter, the piston wear is three times, and the piston ring wear is nine times.

2025-04-23

Status Quo of the Filter Manufacturing Industry in 2023

A filter refers to an accessory that filters impurities or gases through filter paper or other materials. It generally refers to automotive filters, which are engine components. According to different filtration functions, they are divided into: oil filters, fuel filters (gasoline filters, diesel filters, oil-water separators, hydraulic filters), air filters, air conditioning filters, etc. Engines have three types of filters: air, oil, and fuel filters, commonly known as 'three filters'. With the addition of an air conditioning filter, they are colloquially called 'four filters'.

2025-04-23

Competitive landscape of the filter manufacturing industry

Currently, major international companies primarily engaged in filter manufacturing include Mann+Hummel Group, Mahle Group, Cummins Filtration, Donaldson Company, Sogefi Group, and Denso Corporation. These enterprises possess strong competitive advantages in technological innovation, product quality, and market share, dominating the global market for high-end automotive filters.

2025-04-23

Engine's Lungs - How Air Filters Work

The air filter is the engine's gas mask. It filters out most of the impurities in the air, providing clean air for the engine. Therefore, its role is very important. In daily use, it must be cleaned frequently and replaced in a timely manner to ensure that the engine inhales clean air.

2025-04-23

Misconceptions and identification methods of air filters

The air filter's job is to filter out suspended particles from the air entering the cylinder to reduce wear and tear on the cylinder, piston, and piston rings. Of the three media required for engine operation, air has the largest volume and comes from the atmosphere. If the air filter cannot effectively filter out suspended particulate matter from the air, it will, at best, accelerate the wear and tear on the cylinder, piston, and piston rings, and at worst, cause cylinder scoring and shorten the engine's lifespan.

2025-04-23

Methods for Identifying Air Filters

The service life and maintenance cycle of the air filter should be measured by the ratio of the gas flow rate through the filter element to the gas flow rate required by the engine. When the flow rate is greater than the required flow rate, the filter works normally; when the flow rate is equal to the required flow rate, the filter should be maintained; when the flow rate is less than the required flow rate, the filter cannot be used anymore, otherwise the engine's operating conditions will deteriorate. The situation will worsen, or even fail to work.

2025-04-23

The importance of filtration efficiency to the engine

The lifespan of a vehicle usually depends on its key component - the engine. The engine is like the "heart" of the human body, and a good filter is like the "kidney" that removes toxins from the body. During operation, impurities deposited in the fuel system and dust suspended in the air will contaminate the diesel fuel, affecting its quality.

2023-12-06

The working principle of the air filter

The air filter is the engine's gas mask. It filters out most impurities from the air, providing clean air to the engine. Therefore, its role is very significant. In daily use, it must be cleaned frequently and replaced in a timely manner, ensuring the engine inhales clean air.

2023-12-06

How to properly use an air purifier

The air filter's job is to filter out suspended particles from the air entering the cylinder to reduce wear and tear on the cylinder, piston, and piston rings. Of the three media required for engine operation, air is the largest in volume and comes from the atmosphere. If the air filter cannot effectively filter out suspended particles from the air, lighter particles will accelerate wear and tear on the cylinder, piston, and piston rings, while heavier particles can cause cylinder scoring, shortening the engine's lifespan.

2023-12-06