| 发明名称 | Diesel engine and exhaust aftertreatment system and method of treating exhaust gases from a diesel engine | ||
| 摘要 | In a diesel engine and exhaust aftertreatment system, a controller is arranged to control operation of the engine to obtain a first set of exhaust characteristics and to control a fuel injector to inject fuel upstream of a DPF at a first rate of injection until at least one condition is attained, and, after the at least one condition is attained, to control the fuel injector so that a rate of fuel injection is reduced and to contra! operation of the engine to obtain a second set of exhaust characteristics so that regeneration of the DPF occurs. At least one characteristic of the first and second sets of characteristics beina, different. A method for treating, diesei engine exhaust is also disclosed. | ||
| 申请公布号 | US8984860(B2) | 申请公布日期 | 2015.03.24 |
| 申请号 | US201013807236 | 申请日期 | 2010.07.02 |
| 申请人 | Mack Trucks, Inc. | 发明人 | Tai Chun |
| 分类号 | F01N3/00;F01N3/021;F01N3/023;F01N3/025;F01N3/10;F01N9/00;F02D41/02;F02D41/14;F01N13/00;F01N3/20 | 主分类号 | F01N3/00 |
| 代理机构 | WRB-IP LLP | 代理人 | WRB-IP LLP |
| 主权项 | 1. A method of treating exhaust gases from a diesel engine, comprising: operating the engine and passing exhaust gases through a diesel particulate filter (DPF); operating the engine to obtain a first set of exhaust characteristics and injecting fuel upstream of the DPF at a first rate of injection so that active NO2-based regeneration of the DPF occurs until at least one condition is attained; and after the at least one condition is attained, reducing a rate of fuel injection and operating the engine to obtain a second set of exhaust characteristics so that NO2-based regeneration of the DPF occurs, at least one characteristic of the first and second sets of characteristics being different. | ||
| 地址 | Greensboro NC US | ||