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Exhaust aftertreatment system and vehicle comprising means for capturing catalyst poisons

A technology of exhaust post-treatment and catalytic converters, which is applied in exhaust gas treatment, chemical instruments and methods, exhaust devices, etc., and can solve problems such as huge cost and expensive catalytic converters

Inactive Publication Date: 2017-04-19
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Replacing catalytic converters (eg diesel oxidation catalytic converters) in exhaust aftertreatment devices that allow replacement also entails significant costs, since such catalytic converters are expensive

Method used

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  • Exhaust aftertreatment system and vehicle comprising means for capturing catalyst poisons
  • Exhaust aftertreatment system and vehicle comprising means for capturing catalyst poisons
  • Exhaust aftertreatment system and vehicle comprising means for capturing catalyst poisons

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Embodiment Construction

[0040] Hereinafter, the present invention is described in more detail with reference to the accompanying drawings. The invention is not limited to the embodiments described and shown in the drawings, but it can be modified within the framework of the appended claims. Furthermore, the drawings should not be considered to be to scale, as certain features may be exaggerated in order to further illustrate the invention.

[0041] The present invention seeks to overcome the problems caused by chemical toxins in the exhaust gas. Toxins in this context are elements or compounds thereof which can poison or deactivate at least one catalytic converter in an exhaust gas aftertreatment device, in particular a diesel oxidation catalyst in an exhaust gas aftertreatment device. Such toxins may be present in gaseous form, in particulate form or in some cases even in liquid form without departing from the invention. Poisoning of such catalytic converters usually occurs by accumulation of toxi...

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PUM

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Abstract

An exhaust aftertreatment system (1) for a vehicle (100) comprises an exhaust aftertreatment device (3) and an exhaust channel 4 arranged between the vehicle's combustion engine (2) and the exhaust aftertreatment device. At least one elongated element (9) is arranged in the exhaust channel, in order to catch chemical toxins, which may otherwise deactivate a catalyst in the exhaust aftertreatment device.

Description

technical field [0001] The invention relates to an exhaust aftertreatment system for exhaust gas from a combustion engine, such an exhaust aftertreatment system comprising an exhaust aftertreatment device with at least one catalytic converter suitable for cleaning the exhaust gas, for example with at least An exhaust aftertreatment device with a diesel oxidation catalyst (DOC) and a selective catalytic reduction catalyst (SCR). The invention also relates to a vehicle comprising a combustion engine and an exhaust aftertreatment system. Background technique [0002] Combustion engines combust a mixture of air and fuel to produce drive torque. The combustion process produces exhaust gas that is expelled from the combustion engine. These exhaust gases are guided via the exhaust conduit to an exhaust outlet provided at the downstream end of the exhaust conduit, from which exhaust gases are discharged into the environment. Exhaust gases from combustion engines contain nitrogen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/08F01N13/00
CPCF01N3/08F01N3/105F01N13/08F01N2240/20F01N2510/06F01N2570/08Y02A50/20B01D53/9481F01N3/0814F01N13/009F01N2240/18F01N2570/00F01N2570/04
Inventor A·萨拉迈特S·达林H·林德H·埃里克森M·尼尔松K·尤蕾涅斯U·尼伦
Owner SCANIA CV AB