Patent ID: 6698190
Filing Date: 2004-03-02
Classification: F01N,Y02A,Y10S

Abstract:
An exhaust gas purifying device in a vehicle, wherein a reforming reactor (1) is provided for extraction of hydrogen from fuel and wherein the hydrogen is supplied to an exhaust gas stream in an exhaust gas conduit (4) of the internal combustion engine (2) upstream of the exhaust gas catalytic converter (3), wherein the reforming reactor (1) includes a supply device (6) for oxygen and/or water, wherein the reforming reactor (1) is connected with a side branch (5) of the exhaust gas conduit (4), wherein oxygen and water for reforming are obtained in the form of an exhaust gas partial stream via the side branch (5), wherein the reforming reactor (1) is provided with means (12, 12â€²) for adjusting the relationship (&phgr;) of oxygen to fuel in the reforming reactor (1), and wherein fuel is metered or supplied to the reforming reactor (1) in dependence upon the oxygen content of the exhaust gas stream in the side branch (5) of the exhaust gas conduit (4).