US2015023844A1PendingUtilityA1

Siloxane filter in an exhaust aftertreatment system

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Assignee: CATERPILLAR INCPriority: Oct 9, 2014Filed: Oct 9, 2014Published: Jan 22, 2015
Est. expiryOct 9, 2034(~8.2 yrs left)· nominal 20-yr term from priority
Inventors:Robert D. Clayton
F01N 2250/02F01N 3/035F01N 2570/00B01D 53/04B01D 2253/104F01N 2330/00B01D 2258/0283B01D 2257/553B01D 2253/342F01N 2330/30Y02T10/12F01N 3/2803
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Claims

Abstract

An exhaust aftertreatment system for an engine is provided. The exhaust aftertreatment system includes an exhaust duct, at least one of a diesel particulate filter and a diesel oxidation catalyst, a selective catalytic reduction (SCR) catalyst, and at least one siloxane filter. The at least one siloxane filter is positioned upstream of the exhaust aftertreatment system. The at least one siloxane filter is configured to filter siloxanes from exhaust gases and is structured to create a uniform distribution of siloxanes throughout the at least one siloxane filter.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An exhaust aftertreatment system for an engine, the exhaust aftertreatment system including an exhaust duct, and at least one of a diesel particulate filter, a diesel oxidation catalyst, and a selective catalytic reduction (SCR) catalyst, wherein the exhaust aftertreatment system comprises:
 at least one siloxane filter positioned upstream of the exhaust aftertreatment system, the at least one siloxane filter configured to filter siloxanes from exhaust gases and structured to create a uniform distribution of siloxanes throughout the at least one siloxane filter.

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