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US 8,635,861 B2Granted
Exhaust aftertreatment system
AssigneeCaterpillar Inc.
InventorsJinhui Sun, Yung T. Bui, Michael P. Boahene, Shashank Mupparapu
Life of this patent
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Abstract
An exhaust aftertreatment system including an exhaust flow area, a first bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area and a second bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area. The first bank may be arranged in parallel with the second bank and inlet of the first bank is configured to provide greater flow resistance to the exhaust than the inlet of the second bank.
Claims17
An aftertreatment system for treating an exhaust from an engine, comprising:
- a first exhaust flow region;
- a first bank of one or more exhaust treatment, the first bank having a first inlet in fluid communication with the first exhaust flow region;
- and
- a second bank of one or more exhaust treatment devices having a second inlet in fluid communication with the exhaust flow region;
- the first bank arranged in parallel with the second bank;
- wherein the first inlet is configured to provide greater flow resistance to the exhaust than the second inlet;
- and
- a housing exclusive of the engine containing the first exhaust flow region, the first bank of one or more exhaust treatment devices and the second bank of one or more exhaust treatment devices.
5 more elements
A power source, comprising:
- an engine;
- an exhaust conduit configured to receive exhaust from the engine;
- an exhaust treatment system in fluid communication with the exhaust conduit, the exhaust treatment system comprising:
- a first exhaust flow region;
- a first bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area, the first bank having a first inlet configured to receive exhaust directly from the first exhaust flow region;
- a second bank of one or more exhaust treatment devices in fluid communication with the exhaust flow area;
- the first bank arranged in parallel with the second bank, the second bank having a second inlet configured to receive exhaust directly from the first exhaust flow region, wherein the first inlet is configured to provide greater flow resistance to the exhaust than the second inlet;
- and
- a housing exclusive of the engine containing the first exhaust flow region, the first bank of one or more exhaust treatment devices and the second bank of one or more exhaust treatment devices.
6 more elements
Dependencies are inferred from the claim text.