Enclosed volume exhaust diffuser apparatus, system, and method
AssigneeCummins Filtration IP, Inc.
InventorsMichael Ryan, J. Dixon, Patrick Klein
Life of this patent
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Abstract
An apparatus, system, and method for cooling exhaust gases includes an inlet operatively connected to an exhaust port from a diesel engine or the like, and a housing defining a substantially enclosed volume. At least a portion of the volume is larger in cross-section than the inlet in cross-section, such that the exhaust gases expand upon entering the housing from the inlet. At least one outlet larger in collective cross-section than the inlet in cross-section is disposed on the housing and configured to expel the exhaust gases from the housing into the atmosphere.
Claims26
An apparatus for cooling exhaust gases, the apparatus comprising:
- an inlet operatively connected to a source of exhaust gases;
- a housing defining a substantially enclosed volume, at least a portion of the volume larger in cross-section than the inlet in cross-section, the housing configured to receive the exhaust gases through the inlet;
- an outlet disposed on the housing and configured to expel the exhaust gases from the housing into the atmosphere.
An exhaust pipe apparatus operatively connecting an exhaust port of an internal combustion engine to the atmosphere, the apparatus configured to carry exhaust gases from the engine to the atmosphere, the apparatus comprising:
- a first passage configured to receive exhaust gases;
- a housing operatively connected to the first passage for reception of exhaust gases from the passage, the housing defining a substantially enclosed volume configured such that the exhaust gases expand upon entering the housing from the first passage;
- a plurality of second passages configured to expel the exhaust gases from the housing into the atmosphere, the second passages being larger in collective cross-section than the first passage.
A method of cooling exhaust gases, the method comprising:
- urging the gases through a first passage;
- urging the gases from the first passage into a substantially enclosed volume;
- allowing the gases to expand within the volume;
- urging the gases from the enclosed volume to the atmosphere.
A diesel engine exhaust treatment and cooling system, the system comprising:
- an exhaust pipe substantially containing and directing exhaust gases generated by the engine;
- an exhaust treatment mechanism disposed on the exhaust pipe, the exhaust treatment mechanism configured to modify the composition of the exhaust gases;
- a regeneration mechanism operatively attached to the exhaust treatment mechanism, the regeneration mechanism configured to regenerate the exhaust treatment mechanism from time to time;
- a cooling mechanism disposed on the exhaust pipe downstream of the exhaust treatment mechanism, the cooling mechanism comprising a substantially enclosed volume, a part of which is greater in cross-section than the exhaust pipe in cross-section, the cooling mechanism further comprising a plurality of outlets through which the exhaust gases enter the atmosphere.
Dependencies are inferred from the claim text.