公开(公告)号：US20250059901A1

公开(公告)日：2025-02-20

申请号：US18717711

申请日：2022-12-08

Applicant: Eaton Intelligent Power Limited

Inventor： James E. MCCARTHY, Jr. ,  Bryan A. ZAVALA ,  Chris SHARP ,  Andrew MATHEAUS

IPC: F01N3/20

Abstract: A method of aftertreatment heat management involves heating a selective catalytic reduction (SCR) device of an aftertreatment system to a temperature of 225° C.+/−15° C. This temperature optimizes for both NOx reduction and NH; storage. A fuel burner or e-Heater can be used to heat the SCR to the desired temperature and, in some cases, increase the temperature to a target temperature of around 250° C. for a period of time to release excess NH3 from the SCR.