Identification method of air filter


Release time:

Dec 06,2023

The service life and maintenance cycle of the air filter should be measured by the ratio of the gas flow through the filter element to the gas flow required by the engine. When the flow rate is greater than the flow rate, the filter works normally; when the flow rate is equal to the flow rate, the filter should be maintained; when the flow rate is less than the flow rate, the filter can no longer be used, otherwise the working conditions of the engine will deteriorate. The situation is getting worse and worse, even unable to work.

The working condition of the air filter and when it needs maintenance or replacement can be determined as follows:
In theory, the service life and maintenance cycle of the air filter should be measured by the ratio of the gas flow through the filter element to the gas flow required by the engine. When the flow rate is greater than the flow rate, the filter works normally; when the flow rate is equal to the flow rate, the filter should be maintained; when the flow rate is less than the flow rate, the filter can no longer be used, otherwise the working conditions of the engine will deteriorate. The situation is getting worse and worse, even unable to work.
In actual work, when the air filter element is blocked by suspended particles and cannot meet the airflow required by the engine, the engine working state will be abnormal, such as roaring sound, slow acceleration (insufficient intake air volume, insufficient cylinder pressure), Weak work (the mixture is too rich to cause incomplete combustion), the water temperature is relatively high (continue to burn when entering the exhaust stroke), and the smoke becomes thicker when the exhaust accelerates. When these symptoms occur, it can be judged that the air filter is clogged, and the filter element should be removed for maintenance or replacement in time.
When maintaining the air filter element, pay attention to the color change of the inner and outer surfaces of the filter element. After dust removal, the outer surface of the filter paper is clear and the inner surface is bright, and the filter element can continue to be used; if the outer surface of the filter paper loses its original color or the inner surface becomes dark, it must be replaced.

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