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US 7,481,048 B2Granted
Regeneration assembly
AssigneeCaterpillar Inc.
InventorsMichael P. Harmon, Cho Y. Liang, Gregory J. Kaufmann, Mari Lou Balmer-Millar
Life of this patent
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Abstract
A regeneration assembly includes a first portion including a combustion chamber connected to a combustor head. The regeneration assembly also includes a second portion including a housing. The first portion is removably connectable to the second portion.
Claims42
A regeneration assembly, comprising:
- a first portion including a combustion chamber connected to a combustor head, the combustor head including an inlet configured to direct a flow of filtered exhaust gas to the combustion chamber, the flow of filtered exhaust gas having at least a portion of particulates removed therefrom;
- and
- a second portion including a housing, the housing including an exhaust gas inlet configured to direct a flow of exhaust gas to a combustion zone within the housing, the first portion being removably connectable to the second portion;
- wherein the inlet in the combustor head is configured to inject a first amount of oxygen for initiating combustion of a combustible substance in the combustion chamber, and the first amount of oxygen is a volume of oxygen sufficient to enable only partial combustion of the combustible substance in the combustion chamber.
1 more element
A regeneration assembly, comprising:
- a first portion including a combustion chamber connected to a combustor head, the combustion chamber defining a first combustion zone;
- a second portion including a housing defining a second combustion zone, the combustion chamber of the first portion being disposed substantially within the housing, the first combustion zone being substantially isolated from the second combustion zone by a stabilizer connected to the combustion chamber and wherein the first portion is configured to individually mate with any one of a plurality of second portions of different configurations;
- an injector connected to the combustor head and configured to inject a combustible substance into the combustion chamber;
- and
- a gas inlet in the combustor head configured to inject a first amount of oxygen for initiating combustion of the combustible substance in the first combustion zone of the regeneration assembly, the first amount of oxygen being a volume of oxygen sufficient to enable only partial combustion of the combustible substance in the combustion chamber.
2 more elements
A method of regenerating a filter using a regeneration assembly, comprising:
- injecting a flow of a combustible substance into a first combustion zone of the regeneration assembly;
- directing a first amount of oxygen for initiating combustion of the combustible substance to the first combustion zone of the regeneration assembly;
- partially combusting the combustible substance in the first combustion zone;
- directing a flow of exhaust to a second combustion zone of the regeneration assembly;
- and
- substantially completely combusting a remainder of the injected flow of the combustible substance in the second combustion zone.
3 more elements
Dependencies are inferred from the claim text.