Air filter for engine

Abstract

The invention discloses an air filter of an engine. The air filter comprises an upper casing and a lower casing, wherein a filtering element is arranged in the middle part of a filtering cavity; the periphery of the filtering element is fixedly arranged in the filtering cavity through a fixing device; the fixing device comprises a vibration bin and an elastic skirt; a hollow dust dropping plate is arranged in the filtering cavity and is positioned under the filtering element; one end of the dust dropping plate is fixedly connected with the wall surface of one side of the lower casing to form a support end, and a gap is reserved between the other end of the dust dropping plate and the wall surface of the other side of the lower casing to form a free end of the dust dropping plate. The air filter has the advantages that by designing the vibration bin, dust and impurities adhered onto the filtering element can fall down, and the problem of blockage of the filtering element by the dust is solved; by arranging the dust dropping plate, when the noise is reduced, the dust falling from the filtering element due to vibration can be collected, the use cycle of the filtering element is prolonged, and the filtering element does not need to be frequently replaced; the self-cleaning capacity of the air filter is improved, and the air filter gas good air filtering capacity.

Description

technical field [0001] The invention relates to the field of engine supporting equipment, in particular to an engine air filter. Background technique [0002] When the piston machinery (internal combustion engine, reciprocating compressor, etc.) is working, if the inhaled air contains impurities such as dust, it will aggravate the wear of the parts, so an air filter must be installed to provide clean air for these mechanical equipment, so as to Prevent these mechanical equipment from inhaling air with impurity particles during work to increase the chance of abrasion and damage. The main components of the air filter are the filter element and the casing. The filter element is the main filtering part, which is responsible for the filtration of gas, and the casing is the external structure that provides the necessary protection for the filter element. The working requirement of the air filter is to be able to undertake high-efficiency air filtration work, not to add too much r...

AI Technical Summary

Problems solved by technology

[0006] Due to the setting of the above structure, the setting of the vibrating chamber can bring vibration energy to the filter element, causing the filter element to resonate, and then the dust and sundries adhering to the filter element will fall off, which solves the problem of dust blocking the filter element. The service life of the filter element is greatly extended, and there is no need to replace it frequently; on the one hand, the dust plate is used to form a Helmholtz resonator to reduce the noise generated by the air filter, and on the other hand, it is used to collect the dust that falls from the filter element when it vibrates , prevent dust from attaching to the filter element again, remove dust in time, further increase the service life of the filter element, enhance the self-cleaning ability of the air filter, and make the air filter clean even in harsh environments Can have good air filtration ability

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