公开(公告)号：US20130104527A1

公开(公告)日：2013-05-02

申请号：US13704665

申请日：2011-06-20

Applicant: Andreas Liljestrand ,  Per Bremberg ,  Ulf Carlsson ,  Lars Eriksson

Inventor： Andreas Liljestrand ,  Per Bremberg ,  Ulf Carlsson ,  Lars Eriksson

IPC: F01N3/04

CPC classification number: F01N3/04 ,  F01N3/208 ,  F01N9/00 ,  F01N2610/02 ,  F01N2610/11 ,  F01N2610/1453 ,  F01N2610/1473 ,  F01N2900/1812 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method for cooling a dosing unit (250) pertaining to an SCR system for exhaust cleaning: after cessation of exhaust flow, cooling a reducing agent dosing unit (250) by reducing agent supplied to the unit. Intermittently running a feed device (230) to supply reducing agent, and running the feed device (230) at reduced power compared with its ordinary operation. Also a computer programme product containing programme code (P) for a computer (200; 210) for implementing the method. Also an SCR system and a motor vehicle (100; 110) which is equipped with the SCR system are disclosed

Abstract translation: 一种用于冷却与用于排气清洁的SCR系统相关的计量单元（250）的方法：在停止排气流之后，通过供给单元的还原剂冷却还原剂计量单元（250）。 间歇地运行进给装置（230）以供应还原剂，并且与其常规操作相比以较低的功率运行进给装置（230）。 还包括用于实现该方法的用于计算机（200; 210）的程序代码（P）的计算机程序产品。 还公开了一种装有SCR系统的SCR系统和机动车辆（100; 110）