Patent ID: 7980069
Filing Date: 2011-07-19
Classification: F01N,F23D

Abstract:
1. A method of regenerating an exhaust particulate trap, comprising: directing an exhaust flow, produced by an engine, into a burner assembly, the exhaust flow including at least a portion of a totality of exhaust gases produced by an engine, the burner assembly being located upstream from a particulate trap configured to remove one or more types of particulate matter from the exhaust flow; directing the exhaust flow through a plurality of holes in an exhaust flow distribution member and thereby substantially evenly distributing the exhaust flow about a combustion chamber member to remove heat from the combustion chamber member, the heat being created by a flame within the combustion chamber member; heating the exhaust flow in stages as the exhaust flow passes through the burner assembly by exposing a portion of the exhaust flow to the flame at a first stage and exposing additional portions of the exhaust flow to the flame at each subsequent stage to create a heated exhaust flow; directing the heated exhaust flow out of the burner assembly and to the particulate trap to thereby increase a temperature of the particulate trap.