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US 2013/0199160 A1Published application
Aftertreatment system for an engine
AssigneeCummins Emission Solutions Inc.
InventorsJustin Kruer, Atul Abhyankar, John Ringstad, Ken Hummel
Life of this patent
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Abstract
A system includes an internal combustion engine. An aftertreatment system is coupled to the internal combustion engine to receive an exhaust gas stream. The aftertreatment system comprises one or modules. Each module includes one or more emission reducing devices to reduce undesirable constituents in the exhaust gas stream from the internal combustion engine.
Claims34
An apparatus, comprising:
- an internal combustion engine;
- an aftertreatment system including a plurality of modules configured in a two-dimensional array, wherein each of the modules is configured to receive a unique portion of an exhaust gas stream from the internal combustion engine and emit the exhaust gas stream to atmosphere;
- and
- wherein each of the modules includes one or more emission reducing devices to reduce a constituent of the exhaust gas stream.
1 more element
A method, comprising:
- operating an internal combustion engine to rotate an output shaft that defines a first direction;
- reducing undesirable constituents of an exhaust gas stream from the internal combustion engine with an aftertreatment system extending along a center line that is substantially parallel to the first direction, the aftertreatment system including a plurality of modules configured with a first portion of the plurality of modules located substantially on a first side of the center line and a second portion of the plurality of modules located substantially on a second side of the center line, wherein at least one of the first portion and the second portion includes two or more modules positioned sequentially in a direction along the center line, wherein each of the plurality of modules is configured to receive a unique portion of the exhaust gas stream, and wherein each of the modules includes one or more emission reducing devices;
- and
- controlling one or more of the emission reducing devices with a controller.
1 more element
An apparatus, comprising:
- an internal combustion engine including an output shaft defining a first direction;
- an aftertreatment system extending along a center line that is substantially parallel to the first direction, wherein the aftertreatment system includes a plurality of modules and each of the modules is configured to receive a unique portion of an exhaust gas stream from the internal combustion engine, wherein each of the modules includes one or more emission reducing devices to reduce a constituent of the exhaust gas stream, and wherein at least a portion of the plurality of modules are arranged sequentially in a direction along the center line;
- and
- means for carrying the internal combustion engine and the aftertreatment system.
1 more element
A method, comprising:
- monitoring a plurality of sensors in an aftertreatment system including a plurality of modules, wherein each of the modules is configured to receive a unique portion of an exhaust gas stream from the internal combustion engine, wherein each of the modules includes one or more emission reducing devices to reduce a constituent of the exhaust gas stream, and wherein the sensors provide information relating to operation of the emission reducing devices;
- adjusting the operation of at least one of the emission reducing devices based on the information;
- and
- predicting a maintenance event for each of the plurality of modules based on the information.
1 more element
Dependencies are inferred from the claim text.