METHODS AND SYSTEMS FOR AN EXHAUST GAS AFTERTREATMENT ARRANGEMENT
Methods and systems are provided for an exhaust aftertreatment system. In one example, a system comprises an air injector positioned to inject air between a first catalyst and a second catalyst in response to an oxygen concentration of an exhaust gas falling below a threshold concentration while exh...
Saved in:
Main Authors | , , , |
---|---|
Format | Patent |
Language | English |
Published |
05.09.2019
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Methods and systems are provided for an exhaust aftertreatment system. In one example, a system comprises an air injector positioned to inject air between a first catalyst and a second catalyst in response to an oxygen concentration of an exhaust gas falling below a threshold concentration while exhaust gas temperatures are less than a threshold temperature. |
---|---|
Bibliography: | Application Number: US201916270402 |