Invention Grant
US08522536B2 Exhaust aftertreatment systems for gasoline and alternative-fueled engines, with reduction of HC, CO, NOx, and PM
有权
汽油和替代燃料发动机排气后处理系统，减少HC，CO，NOx和PM
- Patent Title: Exhaust aftertreatment systems for gasoline and alternative-fueled engines, with reduction of HC, CO, NOx, and PM
- Patent Title (中): 汽油和替代燃料发动机排气后处理系统，减少HC，CO，NOx和PM
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Application No.: US12470156Application Date: 2009-05-21
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Publication No.: US08522536B2Publication Date: 2013-09-03
- Inventor: Rijing Zhan , Phillip A. Weber
- Applicant: Rijing Zhan , Phillip A. Weber
- Applicant Address: US TX San Antonio
- Assignee: Southwest Research Institute
- Current Assignee: Southwest Research Institute
- Current Assignee Address: US TX San Antonio
- Agency: Chowdhury & Georgakis, P.C.
- Agent Ann C. Livingston
- Main IPC: F01N3/00
- IPC: F01N3/00
Abstract:
An exhaust gas emissions aftertreatment system for spark-ignition engines, which simultaneously reduces the particulate matter, HC, CO, and NOx content of the exhaust. Various embodiments of the system have both a closely-coupled TWC device, and an under-floor treatment device. The under-floor device has either TWC or NOx reduction functionality, depending on whether the engine is run under stiochiometric or lean burn operating conditions.
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