EP 2273083 A1 20110112 - Apparatus for maintening a urea solution in a liquid state for treatment of diesel exhaust
Title (en)
Apparatus for maintening a urea solution in a liquid state for treatment of diesel exhaust
Title (de)
Vorrichtung zur Aufrechterhaltung einer Harnstofflösung in einem flüssigen Zustand zur Behandlung von Dieselabgas
Title (fr)
Appareil pour conserver une solution d'urée dans un état liquide pour le traitement d'échappement pour diesel
Publication
Application
Priority
- US 49985009 A 20090709
- US 49986009 A 20090709
Abstract (en)
A system for keeping a reservoir solution of urea in a liquid state at normally sub-freezing temperatures comprising a reservoir tank module disposed in a solution storage tank (118). Solution in the storage tank is heated partially by passage of heat through the walls of the reservoir tank module. Additional heat is derived from waste heat in engine exhaust gas and is added to the system by passing a portion of the exhaust gas stream through a gas/liquid heat exchanger (152) disposed within the solution in the storage tank (118). The cooled gas is returned to the exhaust system or is sent to the engine intake manifold for EGR.
IPC 8 full level
F01N 3/20 (2006.01)
CPC (source: EP)
F01N 3/206 (2013.01); F01N 2240/02 (2013.01); F01N 2240/20 (2013.01); F01N 2410/00 (2013.01); F01N 2610/02 (2013.01); F01N 2610/10 (2013.01); F01N 2610/1406 (2013.01); F01N 2610/1466 (2013.01); F01N 2610/1486 (2013.01)
Citation (applicant)
- US 6387336 B2 20020514 - MARKO ARMIN [DE], et al
- US 2008092531 A1 20080424 - SUZUKI KAZUNORI [JP], et al
Citation (search report)
- [XI] WO 0138704 A1 20010531 - CATERPILLAR INC [US]
- [XPI] DE 102008001020 A1 20091008 - BOSCH GMBH ROBERT [DE]
- [A] EP 2065578 A1 20090603 - INT ENGINE INTELLECTUAL PROP [US]
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 SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 10168398 A 20100705; EP 10168399 A 20100705