Engine exhaust aftertreatment system and construction vehicle

By employing brackets, heat shields, and heat shields in the engine exhaust aftertreatment system, the impact of engine vibration and heat on the system is resolved, achieving effective utilization and safe isolation of high-temperature heat and meeting emission requirements.

CN224532813UActive Publication Date: 2026-07-21CRCC HIGH TECH EQUIP CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CRCC HIGH TECH EQUIP CORP LTD
Filing Date
2025-08-06
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing engine exhaust aftertreatment systems, engine vibration and high-temperature heat can easily affect the system and personnel safety, and the heat is difficult to effectively conduct to the aftertreatment components, resulting in emissions not meeting standards.

Method used

The design employs brackets, heat shields, and heat shields to place the aftertreatment components on top of the engine and isolate them from the power source through heat shields. Corrugated pipe sections are used to shorten high-temperature pipelines, and shock absorbers and removable heat shields are installed to isolate heat and reduce vibration.

Benefits of technology

It effectively reduces the impact of engine vibration on aftertreatment components, reduces heat radiation, meets the non-road China IV emission regulations, and improves system safety and maintainability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224532813U_ABST
    Figure CN224532813U_ABST
Patent Text Reader

Abstract

The application provides an engine exhaust aftertreatment system and an engineering vehicle. The engine exhaust aftertreatment system comprises a support, a heat insulation plate and an aftertreatment assembly. The support comprises a support beam. The bottom of the support beam is provided with an engine. The heat insulation plate covers the support beam and is connected to the support beam. The heat insulation plate is provided with a pipe passing hole. The aftertreatment assembly is arranged on the heat insulation plate. The aftertreatment assembly is located at the top of the engine. The aftertreatment assembly and the engine are connected through a pipeline. The pipeline penetrates through the pipe passing hole. In the application, the aftertreatment assembly is located at the top of the engine, which facilitates the connection of the engine, shortens the high-temperature pipeline and is beneficial to the heat entering the aftertreatment assembly. The heat insulation plate is arranged between the aftertreatment assembly and the power room, so that the aftertreatment assembly and the power room are isolated, heat radiation to the power room is avoided and the influence of heat on the operation of the engine is reduced.
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