Burner With Air-Assisted Fuel Nozzle And Vaporizing Ignition System

Abstract

An exhaust aftertreatment system includes a burner in heat transfer relation with exhaust gas in an exhaust gas passageway. The burner includes a housing assembly and a nozzle assembly, the housing assembly at least partially defining a combustion chamber. The nozzle assembly is at least partially received in the housing assembly and includes a nozzle body and an electric heating element. The heating element is disposed within the nozzle body and operable to heat fuel flowing through the nozzle body. A control module is in communication with the heating element and controls the heating element in a first mode in which the heating element heats fuel for combustion in the combustion chamber, and a second mode in which the heating element burns deposits off of the nozzle body when fuel is not supplied to the nozzle body.

Dependencies are inferred from the claim text.