Global to push GA events into
skip to main content

Title: Systems and methods for increasing nitrogen dioxide fraction in exhaust gas at low temperature

An aftertreatment system includes a first oxidation catalyst, a second oxidation catalyst, and a turbocharger. The first oxidation catalyst is upstream of the turbocharger and includes a first oxidation catalyst formulation. The second oxidation catalyst is downstream of the turbocharger and includes a second oxidation catalyst formulation different than the first oxidation catalyst formulation. The second oxidation catalyst formulation is configured to promote conversion of nitric oxide (NO) to nitrogen dioxide (NO 2).
Inventors:
; ;
Issue Date:
OSTI Identifier:
1467418
Assignee:
Cummins Inc. (Columbus, IN) NETL
Patent Number(s):
10,022,667
Application Number:
15/663,457
Contract Number:
EE0006795
Resource Relation:
Patent File Date: 2017 Jul 28
Research Org:
Cummins Inc., Columbus, IN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English