Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2006-12-13
2011-10-04
Denion, Thomas (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S301000
Reexamination Certificate
active
08028519
ABSTRACT:
The invention relates to a method for regenerating an emission control system of an internal combustion engine, comprising a storage catalytic converter, a first exhaust gas probe being situated in an exhaust gas tract upstream of the storage catalytic converter and a second exhaust gas probe being situated in a second exhaust gas tract downstream of the storage catalytic converter. A first output signal of a first exhaust gas probe and a second output signal of a second exhaust gas probe are supplied to an engine management system and the storage catalytic converter is regenerated by being exposed to a reductant in a regeneration phase. If the quantity of reductant is controlled by the engine management system during the regeneration phase, whereby said system detects the quantity of reductant that is present downstream of the storage catalytic converter by means of the second output signal of the second exhaust gas probe situated downstream of said converter, the charging of reductant can be significantly reduced with respect to an optimised dosage. Excess consumption of fuel or reductant as a result of the regeneration of the storage catalytic converter is minimised. In addition, the method improves the emission values, thus significantly contributing to the maintenance of emission limits.
REFERENCES:
patent: 5090199 (1992-02-01), Ikuta et al.
patent: 5775099 (1998-07-01), Ito et al.
patent: 2004/0154285 (2004-08-01), Nagaoka et al.
patent: 197 39 848 (1999-03-01), None
patent: 19739848 (1999-03-01), None
patent: 100 23 079 (2002-01-01), None
patent: 0 903 479 (1999-03-01), None
patent: 2 410 203 (2005-07-01), None
patent: 1003214228 (2003-07-01), None
patent: 2003214228 (2003-07-01), None
patent: WO 2007/074071 (2007-07-01), None
Hartmann Gerd
Scherer Stefan
Schweizer Frank
Denion Thomas
Matthias Jonathan
Merchant & Gould P.C.
Robert & Bosch GmbH
LandOfFree
Method and device for regenerating an emission control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for regenerating an emission control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for regenerating an emission control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4262305