Patent · US Active

System and method for exhaust gas aftertreatment with lean NOx trap and exhaust gas recirculation

US10690029B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Christoph Boerensen · Aachen, DE
Dirk Roemer · Cologne, DE
Frank Linzen · Aachen, DE
Brendan Patrick Carberry · Aachen, DE
Felix Goebel · Aachen, DE
Evgeny Smirnov · Aachen, DE

Key dates

Filing date	Jan 30, 2018
Grant date	Jun 23, 2020
Priority date	—
Expiry date	Sep 14, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An arrangement of an internal combustion engine with at least one first and one second nitrogen oxide storage catalytic converter is provided, wherein the first nitrogen oxide storage catalytic converter is arranged within a low-pressure exhaust gas recirculation circuit. A method for operating the arrangement is furthermore provided, wherein the nitrogen oxide storage catalytic converters can be used for the production of ammonia under operating conditions with a high load by providing rich exhaust gas conditions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.