Self-cleaning air filter and control system thereof

Abstract

The invention provides a self-cleaning air filter. The self-cleaning air filter is reasonable in structure, can remove dust accumulated on the outer surface of an air filter core quite well and is good in self-cleaning effect, and the service life of the air filter core is prolonged. The self-cleaning air filter comprises a shell; the shell is provided with an air inlet; an air filter end cover isinstalled at one end of the shell; an air bag is fixedly installed in the shell; the interior of the shell is provided with a filter air outlet; a main filter core is installed in the shell, one endof the main filter abuts against the outside of the air bag to form sealing connection; the space between the outer wall of the filter air outlet and the inner wall of the shell forms an air channel;an air storage part of the air bag is annularly arranged on the filter air outlet, an output opening of the air storage part of the air bag is externally connected with the input end of an electromagnetic pulse valve, the output end of the electromagnetic pulse valve communicates with the air feeding end of the air channel, and the air exhausting end of the air channel is located on the inner sideof the main filter core; and the outer annular surface of the air filter end cover is provided with dust discharge holes. In addition, the invention further provides a control system of the self-cleaning air filter.

Description

technical field [0001] The invention relates to the technical field of air filter structure, in particular to a self-cleaning air filter and its control system. Background technique [0002] The air filter is a filter structure that cleans the outside air and transmits it to the interior. For internal combustion engine vehicles, it is a device that separates and filters particulate matter in the atmosphere and then supplies clean air to the internal combustion engine. The existing air filter has a short maintenance interval, and its filter element maintenance procedures are cumbersome and complex in structure, which will cause a long downtime of the vehicle or equipment, and thus make the maintenance cost of the entire air filter high. [0003] The Chinese invention patent with the publication number CN108397318A discloses a self-cleaning air filter, which uses the airflow jetted by the pulsed airflow to clean the outer surface of the air filter element, and the airflow jett...

AI Technical Summary

Problems solved by technology

The maintenance interval of the existing air filter is short, and the maintenance process of the filter element is cumbersome and the structure is complex, which will make the vehicle or equipment stop for a long time, which in turn makes the maintenance cost of the entire air filter high

[0003] The Chinese invention patent with the publication number CN108397318A discloses a self-cleaning air filter, which uses the airflow jetted by the pulsed airflow to clean the outer surface of the air filter element, and the airflow jetted from the air bag is from the inside to the outside The injected airflow directly reaches the space inside the air filter element. However, due to the large space inside the air filter element, the impact force of the injected airflow on the air filter element has not reached the ideal level. Unsatisfactory ability to clean up dust deposits on the outer surface of the filter element

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