Novel exhaust ejection postprocessor

Abstract

The invention provides a novel exhaust ejection postprocessor. A barrel is divided into three chambers by virtue of a front end cover, a rear end cover, a partition plate I and a partition plate II; a carrier assembly is arranged between the partition plate I and the partition plate II; a plurality of small holes are evenly formed in the partition plate I; the novel exhaust injection postprocessor is characterized in that an air inlet pipe penetrates through the front end cover and the first chamber to the second chamber, and is in butted connection with the partition plate II; a plurality of small holes are evenly formed in the pipe wall, located in the second chamber, of the air inlet pipe; an air outlet pipe is arranged on the rear end cover; an ejector pipe is arranged in the air outlet pipe; the other end of the ejector pipe penetrates out from the partition plate II, the second chamber, the partition plate I and the front end cover in sequence. According to the novel exhaust ejection postprocessor, the air inlet pipe is arranged in the second chamber, so that a tail gas returns back to the first chamber from the second chamber; through treatment of the carrier assembly, the circulating path of the tail gas is lengthened; the relatively full and even mixing of the tail gas and atomized urea is facilitated, thus the conversion efficiency of the tail gas is improved; the novel exhaust ejection postprocessor is simple in structure, economic and applicable; the service life of the postprocessor is prolonged.

Description

technical field [0001] The invention relates to an automobile post-processor, in particular to a novel exhaust gas injection post-processor. Background technique [0002] After the automotive post-processor carrier has been used for a period of time, dust will adhere to the mesh, which will reduce the effective contact area between the coating and the exhaust gas, reduce the exhaust gas treatment capacity, and shorten the service life of the assembly. [0003] Reduce the dust adhered in the carrier mesh, increase the effective contact area between the mesh surface coating and the exhaust gas, and then improve the dust adhesion of the carrier in the later stage of use, reduce the effective contact area between the coating and the exhaust gas, and deteriorate the exhaust gas treatment capacity. [0004] The patent number is: 201120251696.7 A car after-processor with vacuuming, including front end cover, rear end cover, two partitions, shell, muffler pipe assembly, catalytic co...

AI Technical Summary

Problems solved by technology

[0005] Its inlet pipe forms a circulation in the first chamber, and the circulation will directly cross the second chamber to the third chamber, so that the effect of the catalytic converter does not meet the requirements, and its outlet pipe extends to the second chamber, which will cause Take out the exhaust gas that has not been treated well, and it will cause a backlog of exhaust gas, which will increase the harmful substances in the post-processor, affect the treatment effect, and will inevitably cause indirect emission of exhaust gas

Images