ULTRA-COMPACT POST-PROCESSING SYSTEM, SUPERCHARGER ASSEMBLY AND ENGINE

WIPO Patent Application WO/2023/131337

A1

An ultra-compact post-processing system, a supercharger assembly and an engine. The ultra-compact post-processing system comprises a mixer provided with an inlet connector to be connected to the supercharger body, a urea nozzle connected to the inlet connector, a shell sleeved at the periphery of part of the mixer, and a catalytic disc provided in the shell. The shell is provided with an air outlet. The catalytic disc is provided between the mixer and the inner wall of the shell, and is sleeved at the periphery of the mixer. The catalytic disc divides an inner cavity of the shell into a mixing cavity and an air return cavity. The air outlet of the shell is provided in the air return cavity. A mixing section is provided at the air outlet end of the mixer, and the mixing section is provided in the mixing cavity. According to the present invention, the tail gas temperature is fully utilized, and the conversion efficiency of the post-processing system is improved. The mixing section is provided in the mixing cavity at the rear end of the catalytic disc, such that the mixing path can be prolonged, sufficient mixing is ensured, the urea uniformity is improved, and the conversion efficiency can be improved due to the formation of a preheating pipeline for the catalytic disc.

LIU WEIDA (CN)
HUO CUIYING (CN)
ZHENG BIYING (CN)

PCT/CN2023/071532

July 13, 2023

January 10, 2023

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WEICHAI POWER CO LTD (CN)
WEICHAI POWER EMISSION SOLUTIONS TECH CO LTD (CN)

F01N3/20; F01N3/28; F01N5/02

WO2017215458A1

2017-12-21

CN114412616A	2022-04-29
CN104234792A	2014-12-24
CN214533158U	2021-10-29
US20100263352A1	2010-10-21

UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)

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