Invention Grant
US08109081B2 Hydrocarbon selective catalytic reduction for NOx control with gasoline-fueled spark ignition engines using engine-out hydrocarbons
有权
使用发动机油的汽油燃料火花点火发动机进行NOx控制的烃选择性催化还原
- Patent Title: Hydrocarbon selective catalytic reduction for NOx control with gasoline-fueled spark ignition engines using engine-out hydrocarbons
- Patent Title (中): 使用发动机油的汽油燃料火花点火发动机进行NOx控制的烃选择性催化还原
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Application No.: US12468268Application Date: 2009-05-19
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Publication No.: US08109081B2Publication Date: 2012-02-07
- Inventor: Kevin L. Perry , Thompson M. Sloane , Norman D. Brinkman , Paul M. Najt
- Applicant: Kevin L. Perry , Thompson M. Sloane , Norman D. Brinkman , Paul M. Najt
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F01N3/00
- IPC: F01N3/00
Abstract:
A method for controlling hydrocarbon delivery to a hydrocarbon selective catalytic reduction device configured to receive an exhaust gas flow from an internal combustion engine includes monitoring measurable variable terms including factors affecting a conversion efficiency in the hydrocarbon selective catalytic reduction device, determining classifications of the measurable variable terms based upon measurable variable ranges, determining a desired hydrocarbon delivery value range based upon the classifications; and utilizing the desired hydrocarbon delivery value range to control the hydrocarbon delivery to the hydrocarbon selective catalytic reduction device.
Public/Granted literature
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