Exhaust treatment system
OwnerCornelius Oprisinventor
Life of this patent
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Abstract
An exhaust treatment system of a power source includes a filter fluidly connected to an exhaust outlet of the power source. The filter includes a housing and a substrate disposed within the housing. A catalyst material is disposed on the substrate. The exhaust treatment system also includes a reactant assembly including a reactant supply controllably fluidly connectable to the catalyst material. The exhaust treatment system further includes a clean-up catalyst downstream of the catalyst material and a recirculation line configured to direct a portion of a filtered exhaust flow to an intake of the power source.
Claims31
An exhaust treatment system of a power source, comprising:
- a filter fluidly connected to an exhaust outlet of the power source, the filter including a housing and a substrate disposed within the housing, a catalyst material being disposed on the substrate;
- a reactant assembly including a reactant supply controllably fluidly connectable to the catalyst material;
- a clean-up catalyst downstream of the catalyst material;
- and
- a recirculation line configured to direct a portion of a filtered exhaust flow to an intake of the power source.
An exhaust treatment system of a power source, comprising:
- a filter fluidly connected to an exhaust outlet of the power source, the filter including a housing and a substrate disposed within the housing, a catalyst material being disposed on the substrate;
- a reactant assembly including a reactant supply controllably fluidly connectable to the catalyst material;
- a clean-up catalyst downstream of the catalyst material;
- and
- an energy extraction assembly disposed upstream of the filter and fluidly connected to the exhaust outlet of the power source.
A method of treating an exhaust flow of a power source, comprising:
- providing a filter fluidly connected to an exhaust outlet of the power source, the filter including a catalyst material disposed on a substrate, the substrate having a porosity between approximately 55% and approximately 90% in a bare state;
- filtering a first portion of the exhaust flow with the substrate;
- adding a reactant to the exhaust flow upstream of the catalyst material;
- and
- chemically reducing a second portion of the exhaust flow in the presence of the reactant and the catalyst material.
Dependencies are inferred from the claim text.