Global Patent Index - EP 2640943 A1

EP 2640943 A1 2013-09-25 - ARRANGEMENT AND METHOD FOR A DOSING SYSTEM FOR SUPPLY OF A REDUCING AGENT IN THE EXHAUST FLOW FROM A COMBUSTION DEVICE

Title (en)

ARRANGEMENT AND METHOD FOR A DOSING SYSTEM FOR SUPPLY OF A REDUCING AGENT IN THE EXHAUST FLOW FROM A COMBUSTION DEVICE

Title (de)

ANORDNUNG UND VERFAHREN FÜR EIN DOSIERSYSTEM ZUR ZUFUHR EINES REDUKTIONSMITTELS IN DEN ABGASSTROM AUS EINER BRENNVORRICHTUNG

Title (fr)

AGENCEMENT ET PROCÉDÉ POUR UN SYSTÈME DE DOSAGE POUR LA FOURNITURE D'UN AGENT RÉDUCTEUR DANS LE FLUX D'ÉCHAPPEMENT D'UN MOTEUR À COMBUSTION

Publication

EP 2640943 A1 (EN)

Application

EP 11841923 A

Priority

  • SE 1051205 A
  • SE 2011051328 W

Abstract (en)

[origin: WO2012067566A1] The invention relates to an arrangement and a method for a dosing system for supply of a reducing agent in the exhaust flow from a combustion device such as a combustion engine. More specifically, the invention relates to how to identify whether incorrect agent is used as reducing agent in an exhaust post-treatment system. Incorrect agent can be indicated by detecting the temperature of the exhaust gases and comparing it with normal values which occur when using correct reducing agent. This indication makes it possible for continued dosing of an incorrect agent to be halted. If for example fuel is dosed instead of intended reducing agent, the temperature of the exhaust gases will be higher than might normally be expected and the damage which might occur as a result of high exhaust temperatures can be avoided.

IPC 8 full level (invention and additional information)

F01N 11/00 (2006.01); F01N 3/20 (2006.01); F02B 37/00 (2006.01)

CPC (invention and additional information)

F01N 11/002 (2013.01); F01N 3/208 (2013.01); F01N 2550/05 (2013.01); F01N 2560/06 (2013.01); F01N 2610/02 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1814 (2013.01); F02B 37/00 (2013.01); Y02T 10/24 (2013.01); Y02T 10/47 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

EPO simple patent family

WO 2012067566 A1 20120524; EP 2640943 A1 20130925; EP 2640943 A4 20150311; SE 1051205 A1 20120518; SE 535363 C2 20120710

INPADOC legal status


2016-01-20 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20151217

2016-01-20 [18W] WITHDRAWN

- Effective date: 20151217

2015-03-11 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20150211

2015-03-11 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F01N 11/00 20060101AFI20150205BHEP

2015-03-11 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F02B 37/00 20060101ALI20150205BHEP

2015-03-11 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: F01N 3/20 20060101ALI20150205BHEP

2014-02-26 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2013-09-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20130617

2013-09-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR