MEETING BIGGER EMISSIONS CHALLENGES: One size definitely doesn't fit all when it comes to SCR system technology on larger engines

摘要

When it comes to emissions control, much of the focus for diesel and gaseous-fuel engine manufacturers in recent years has been on off-highway mobile equipment, and the U.S. and Europe have developed similar stringent NO_x and PM limits in emissions regulations covering engines up to 750 hp. In Europe, regulations for engines above that range have not been implemented while the U.S. has established requirements, though with less-stringent limit values. There also are separate emissions regulations covering locomotives, marine vessels and stationary generator set engines.