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Method and device pertaining to cooling of dosing units of SCR systems

一种SCR系统、给料单元的技术，应用在SCR系统领域，能够解决喷射器不期望温度等问题，达到小计算复杂度的效果

Inactive Publication Date: 2013-03-06
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to the disadvantage of undesired temperatures on the injector

Method used

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  • Method and device pertaining to cooling of dosing units of SCR systems
  • Method and device pertaining to cooling of dosing units of SCR systems
  • Method and device pertaining to cooling of dosing units of SCR systems

Examples

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Embodiment Construction

[0068] figure 1 A side view of vehicle 100 is depicted. The illustrated vehicle 100 includes a tractor unit 110 having an engine 150 and a trailer 112 . The vehicle can be a heavy vehicle such as a truck or a bus. Alternatively, the vehicle may be a passenger car.

[0069] It should be noted that the present invention is applicable to any SCR system, and thus is not limited to SCR systems of motor vehicles. According to an aspect of the present invention, an innovative method relating to an SCR system comprising a dosing unit for supplying a reducing agent to an exhaust passage for exhaust gas purification and comprising a method for supplying a reducing agent to an exhaust passage for exhaust gas purification The innovative device of the SCR system of the dosing unit is well suited for other platforms (such as ships) with SCR systems besides motor vehicles. The vessel can be of any kind, such as a motorboat, motorboat, ferry or ship.

[0070] According to an aspect of t...

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PUM

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Abstract

The invention relates to a method pertaining to SCR systems which comprise a dosing unit (250) to supply reducing agent to an exhaust duct (240) for exhaust cleaning, and a container for reducing agent, comprising the step of choosing (s310; s340) a limit level for reducing agent in said container (205). The method comprises also the steps of determining (s320) a cooling requirement of said dosing unit (250) and choosing (s340) a limit level for reducing agent in said container (205) on the basis of said cooling requirement. The invention relates also to a computer programme product containing programme code (P) for a computer (200; 210; 400) for implementing a method according to the invention. The invention relates also to a device of an SCR system which comprises a dosing unit (250) to supply reducing agent to an exhaust duct (240) for exhaust cleaning, and a motor vehicle (100) which is equipped with the device.

Description

technical field [0001] The invention relates to a method concerning an SCR system comprising a dosing unit for supplying a reducing agent to an exhaust duct for exhaust gas purification, and a container for the reducing agent. The invention also relates to a computer program product comprising program code for a computer implementing the method according to the invention. The invention also relates to an arrangement of an SCR system comprising a dosing unit for supplying a reducing agent to an exhaust duct for exhaust gas purification, and a motor vehicle equipped with said arrangement. Background technique [0002] Today's vehicles use for example urea as a reducing agent in SCR (Selective Catalytic Reduction) systems including SCR catalysts in which the reducing agent and NO x The gas reacts and converts to nitrogen and water. Various types of reducing agents can be used in SCR systems. Urea for vehicles (AdBlue) is an example of a commonly used reducing agent. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/20F01N9/00F01N11/00
CPCF01N3/10F01N2610/1453Y02T10/24F01N2610/10F01N3/208F01N2610/11F01N3/2066F01N11/00F01N2610/02F01N2900/1811F01N2900/1814Y02A50/20Y02T10/12Y02T10/40F01N2610/142F01N2610/1473
Inventor A·利耶斯特兰德P·布伦贝里D·阿维德松
Owner SCANIA CV AB
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