Automobile exhaust purifier

Abstract

The invention discloses an automobile exhaust purifier. The automobile exhaust purifier comprises a tank body, wherein an exhaust inlet is formed at one end of the tank body; an exhaust outlet is formed in the other end of the tank body; a shunting device for dispersing an exhaust flow, a through hole honeycomb aluminum layer, a catalyst carrier layer and a three-way catalytic device are sequentially arranged in the tank body along the flowing direction of exhaust in a subsection way; openings are separately formed in two ends of the through hole honeycomb aluminum layer; the openings in two ends communicate through holes inside the through hole honeycomb aluminum layer; the catalyst carrier layer is a through hole honeycomb aluminum block; two ends of the catalyst carrier layer communicate through holes of which the insides mutually communicate; and inside hole walls are coated with catalyst layers. The automobile exhaust purifier disclosed by the invention has the advantages of simple structure, convenience in detaching, low possibility of blocking and good purifying effect; the service life is greatly improved; and meanwhile, noise pollution of an automobile is reduced, and a better damping effect is realized.

Description

technical field [0001] The invention relates to the field of vehicle equipment, in particular to a vehicle exhaust purifier. Background technique [0002] The main components of exhaust gas emitted by automobiles are hydrocarbons, nitrogen oxides, carbon monoxide, and particulate carbon. Three-way catalysis mainly converts harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides in automobile exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction. However, the deposition of particulate carbon on the surface of the catalyst will reduce the surface activity of the catalyst or even invalidate it, so most exhaust gas purifiers will add a filter device before the catalyst carrier. However, the effect of depositing granular carbon on the currently used filter device is not very good, and it is easy to block, so the filter device needs to be replaced frequently, which greatly reduces the service life of the purifier. Contents of...

AI Technical Summary

Problems solved by technology

However, the deposition of particulate carbon on the surface of the catalyst will reduce the activity of the catalyst or even invalidate it, so most exhaust gas purifiers will add a filter device before the catalyst carrier

However, the effect of depositing granular carbon on the filter device currently used is not very good, and it is easy to block, so the filter device needs to be replaced frequently, which greatly reduces the service life of the purifier

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