Automobile air filter

Abstract

The invention discloses an automobile air filter. The automobile air filter comprises an upper cover body and a lower shell, wherein the lower shell comprises a bottom plate and an annular flange plate; an air outlet hole is formed in the center of the bottom plate; a cylindrical first filter element is arranged at the periphery of the air outlet hole in the top of the bottom plate; a cylindrical second filter element is arranged at the periphery of the first filter element; a plurality of plate sheets are arranged at the periphery of the second filter element in the circumferential direction; the top ends and the bottom ends of the plate sheets are connected with the annular flange plate and the bottom plate respectively; a gap between the two adjacent plate sheets forms an air inlet channel; the upper cover body comprises a cover plate, a cover shell and a circular lug boss; the circular lug boss is arranged at the bottom of the cover plate; a first clamping groove and a second clamping groove, which are correspondingly matched with the top ends of the first filter element and the second filter element, are formed in the circular lug boss; and the cover shell is arranged at the top of the cover plate. According to the automobile air filter, two layers of filtering structures are arranged so that the air filtering effect and efficiency are improved; the two layers of filtering structures have a large filtering area and a low pressure difference, so that an automobile engine keeps the optimal air-fuel ratio and the service life of the filter elements in the air filter is effectively prolonged.

Description

technical field [0001] The invention relates to an automobile air filter and belongs to the technical field of automobile air intake systems. Background technique [0002] The car air filter is mainly responsible for removing foreign matter, particulate impurities, dust particles, etc. in the filtered air. When the car engine is working, if the inhaled air contains dust particles and other impurities, it will aggravate the wear and tear of the parts, so the air intake system of the car An air filter must be installed; the traditional air filter is usually composed of two parts: the filter element and the housing; the main technical requirements of the air filter are high filtration efficiency, low flow resistance, and continuous use for a long time without maintenance ;A car engine is a very precise part, and tiny impurities will damage the engine; therefore, before the air enters the cylinder, it must first pass through the fine filter of the air filter before entering the ...

AI Technical Summary

Problems solved by technology

[0002] The car air filter is mainly responsible for removing foreign matter, particulate impurities, dust particles, etc. in the filtered air. When the car engine is working, if the inhaled air contains dust particles Such impurities will aggravate the wear of the parts, so the air intake system of the car must be equipped with an air filter; the traditional air filter is usually composed of two parts: the filter element and the housing; the main technical requirement of the air filter is the filtration efficiency High, low flow resistance, can be used continuously for a long time without maintenance; the car engine is a very precise part, and the smallest impurities will damage the engine; therefore, before the air enters the cylinder, it must first pass through the air filter. The filter can enter the cylinder; the air filter is the patron saint of the engine, and the condition of the air filter is related to the life of the engine; if a dirty air filter is used while the car is running, it will cause the engine to take in air Insufficient fuel combustion will cause the engine to work unstable, the power will drop, and the fuel consumption will increase; therefore, the car must keep the air filter clean; The heavy-duty vehicles in the country usually drive in a dusty environment for a long time, which causes the filter element inside the air filter to be easily blocked by dust particles and damaged. The inside of the air filter used in this environment The life of the filter element is very short and needs to be replaced frequently, resulting in high operating costs; the filtering effect of the air filter is not good, which has a great impact on the normal operation of the engine

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