An exhaust burner assembly (116) comprising: - a body (202) extending between an inlet end 204 and an outlet end 206, the body (202) defining an interior volume (210); - an inlet plate (212) extending to the inlet end (204) is coupled to the body (202), wherein the inlet plate (212) defines an inlet opening (214) which is configured to restrict the flow of exhaust gas into the body (202) along an inlet axis (I-I ' ) and defines a combustion port (216) spaced from the inlet port (214); - an outlet plate (218) coupled to the body (202) at the outlet end (206), the outlet plate (218 ) an outlet opening (220) is defined which is designed to cause the exhaust gas to flow out of the body (202) along an outlet axis OO '; - an intermediate plate (226) which is arranged in the body (202) and the internal volume (210) of the body into a first chamber (228) and a zw a second chamber (230), the intermediate plate (226) defining an intermediate opening (232) spaced from the inlet opening (214) for flow coupling the first chamber (228) to the second chamber (230); - a perforated tube (238), which is disposed in the first chamber (228) between the inlet plate (212) and the intermediate plate (226), the perforated tube (238) being fluidically coupled to the intermediate opening (232), the perforated tube (238) having a plurality of openings (240 ) defined therethrough; - a fluid injector (122) attached to the inlet plate (212) and fluidly coupled to the combustion orifice (216), the fluid injector (122) being adapted to dispense a combustible mixture; and - an ignition device (124) adapted to ignite the combustible mixture to produce combustion products; - wherein the plurality of openings (240) of the perforated tube (238) cause at least a portion of the exhaust gas to flow to the second chamber (230 ) flows so that the exhaust gas exiting the outlet opening (220) has a higher temperature than the exhaust gas entering through the inlet opening (214).
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