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1. (WO2008103111) EXHAUST GAS AFTER TREATMENT SYSTEM (EATS)
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2008/103111    International Application No.:    PCT/SE2008/000148
Publication Date: 28.08.2008 International Filing Date: 21.02.2008
Chapter 2 Demand Filed:    18.12.2008    
IPC:
F01N 9/00 (2006.01), F01N 3/035 (2006.01), F02D 41/00 (2006.01), F01N 3/025 (2006.01)
Applicants: VOLVO LASTVAGNAR AB [SE/SE]; SE-405 08 Göteborg (SE) (For All Designated States Except US).
ALM, Christer [SE/SE]; (SE) (For US Only).
ECKERSTRÖM, Ingemar [SE/SE]; (SE) (For US Only).
BERNLER, Hans [SE/SE]; (SE) (For US Only).
BENGTSSON, Johan [SE/SE]; (SE) (For US Only)
Inventors: ALM, Christer; (SE).
ECKERSTRÖM, Ingemar; (SE).
BERNLER, Hans; (SE).
BENGTSSON, Johan; (SE)
Agent: FRÖHLING, Werner; Volvo Technology Corporation, Corporate Patents, 06820, M1.7, SE- 405 08 Göteborg (SE)
Priority Data:
0700438-5 21.02.2007 SE
Title (EN) EXHAUST GAS AFTER TREATMENT SYSTEM (EATS)
(FR) SYSTÈME DE POST-TRAITEMENT DE GAZ D'ÉCHAPPEMENT (EATS)
Abstract: front page image
(EN)The present invention relates to an exhaust gas after treatment system comprising, a diesel particulate filter unit (DPFU) provided downstream of a diesel engine, a selective catalytic reduction (SCR) arrangement provided in fluid communication with said DPFU, a first injector for feeding reducing agent into the exhaust gas provided downstream of said DPFU and upstream of said SCR, at least one NOx sensor provided downstream of said SCR for providing at least one NOx signal to a NOx coordinator, at least one temp sensor provided upstream and/or downstream of said SCR for providing at least one temp signal to said NOx coordinator, wherein said NOx coordinator is provided for switching said diesel engine into a high NOx mode or a low NOx mode depending on the values of the at least one NOx signal and the at least one temp signal.
(FR)La présente invention concerne un système de post-traitement de gaz d'échappement, lequel système comprend une unité de filtre à particules diesel (DPFU) disposée en aval d'un moteur diesel, un dispositif à réduction catalytique sélective (SCR) disposé en communication de fluide avec ladite DPFU, un premier injecteur pour distribuer un agent réducteur dans le gaz d'échappement, disposé en aval de ladite DPFU et en amont dudit SCR, au moins un capteur de NOx disposé en aval dudit SCR pour fournir au moins un signal de NOx à un coordinateur de NOx, au moins un capteur de température disposé en amont et/ou en aval dudit SCR pour fournir au moins un signal de température audit coordinateur de NOx, ledit coordinateur de NOx étant prévu pour changer ledit moteur diesel en un mode NOx élevé ou un mode NOx bas en fonction des valeurs des signaux de NOx et des signaux de température.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)