Patent ID: 9243536
Filing Date: 2016-01-26
CPC Classification: F01N,F02B,F02D,F02M,Y02T

Claim Text:
1. Method for enriching the exhaust gases of a combustion engine with unburnt hydrocarbon by means of in-cylinder post injection of unburnt hydrocarbon, the combustion engine comprising a plurality of cylinders, at least one exhaust manifold for receiving exhaust gases from at least two of the plurality of cylinders, and an EGR circuit for supplying exhaust gases from the exhaust manifold to an air inlet of at least one of the cylinders, wherein the exhaust manifold comprises a first outlet for supplying exhaust gases to an exhaust aftertreatment system, and a second outlet for supplying exhaust gases to the EGR circuit, the method comprising for multiple different engine operating conditions in which exhaust gases flow through the EGR circuit