Metal type diesel vehicle tail gas catalytic cleaner

A technology for catalytic purifiers and diesel vehicles, which can be applied in exhaust devices, machines/engines, and air quality improvement, etc., and can solve problems such as the discount of motor vehicle exhaust emission pollution control effects.

Inactive Publication Date: 2014-09-17
ZHEJIANG DA FENG AUTOMOBILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, the original in-use vehicles that only meet the National II or National III emission standards must be upgraded to meet the requirements of the National IV emission regulations, otherwise the control effect of motor vehicle exhaust pollution will be greatly reduced

Method used

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  • Metal type diesel vehicle tail gas catalytic cleaner
  • Metal type diesel vehicle tail gas catalytic cleaner
  • Metal type diesel vehicle tail gas catalytic cleaner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Such as figure 1 As shown, a metal type diesel vehicle exhaust catalytic converter includes a housing 1 and a carrier 2 built in the housing. The air inlet end cover 12 at the end, the cylinder body 13 connected to the air outlet end of the air inlet end cover, the air outlet end cover 14 connected to the air outlet end of the cylinder, and the air outlet pipe 15 connected to the air outlet end of the air outlet end cover, the air inlet end cover and the air outlet The covers are all frustum-shaped, the taper of the air inlet end cover and the air outlet end cover is 60°, the air inlet end of the air inlet pipe and the air outlet end of the air outlet pipe are all provided with a flange 3, and the carrier passes through a cross The pins are fixedly welded or vacuum brazed and connected in the barrel, the carrier includes a pre-stage carrier 21 located at the front of the barrel and a rear-stage carrier 22 located at the rear of the shell, the pre-stage carrier is coated...

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PUM

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Abstract

The invention discloses a metal type diesel vehicle tail gas catalytic cleaner. The metal type diesel vehicle tail gas catalytic cleaner comprises a shell and a carrier arranged in the shell, wherein the carrier comprises a front-grade carrier located at the front part of the shell and a back-grade carrier located at the back part of the shell; the front-grade carrier is coated with a diesel oxidized form catalyst coating; the back-grade carrier is coated with a particle oxidized form catalytic cleaning agent coating. The front-grade carrier is coated with the diesel oxidized form catalyst coating to process CO and HC in diesel engine tail gas; the back-grade carrier is coated with the particle oxidized form catalytic cleaning agent coating to process PM (Particulate Matters) in the diesel engine tail gas; the front-grade carrier and the back-grade carrier are arranged in one barrel; the structure is simple, a processing process is simple and the cost is saved.

Description

technical field [0001] The invention relates to a metal type diesel vehicle tail gas catalytic purifier. Background technique [0002] In recent years, diesel engines have gradually received widespread attention due to their good power and fuel economy. Almost all heavy trucks, city buses, and industrial machinery are powered by diesel engines. Since China's accession to WTO, in the growth process of global car ownership, the growth rate of gasoline vehicles is only 22%, while the growth rate of diesel vehicles is as high as 58%. Although diesel engines have obvious power advantages, their exhaust pollution cannot be ignored. [0003] Exhaust pollutants from diesel engines mainly include CO, HC, and NO x and PM. Among them, CO is a poisonous gas. HC and NO x It is the main component of photochemical smog and acid rain. PM is particulate matter, mainly composed of soot, soluble organic matter and a small amount of sulfate. Almost all PM, especially micron-sized PM, ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/28
CPCY02A50/20
Inventor 王秋艳乔锋华王磊
Owner ZHEJIANG DA FENG AUTOMOBILE TECH
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