Abstract

The new emission stages, Euro 6 in Europe and SULEV /PZEV in the USA, pose severe challenges on the quality of a car engine’s combustion and exhaust aftertreatment systems. Since most of today’s systems achieve very good emission control results under hot operating conditions, the tougher challenges are presented by the reduction of cold-start emissions and the rapid heating of the exhaust aftertreatment system. The following article by Pierburg and Audi shows how secondary air assists in achieving these goals besides examining other aspects of the secondary air process.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.