专利名称：Selective catalytic reduction system
发明人：Leo Shead,Alexis Eden,Ronald Silver
申请号：US16463612
申请日：20171211新房装修步骤和流程
公开号：US11105236B2硅谷钢铁侠读后感
公开日：
20210831鱼目混珠
专利内容由知识产权出版社提供
专利附图：
克洛诺斯摘要：A method of treating exhaust gas in an exhaust passage using a lective
catalytic reduction system is provided. The system compris a hydrolysis catalyst in the passage upstream of a SCR catalyst, and a diel exhaust fluid (DEF) dosing unit for injecting DEF onto the hydrolysis catalyst at a variable DEF dosing rate. The method
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compris the steps of predicting an initial DEF dosing rate for converting all nitrogen oxide (NOx) contained in the exhaust gas, and estimating an amount of ammonia stored on the SCR catalyst. The method further compris the steps of measuring a NOx conversion rate for the system, and adjusting the initial DEF dosing rate bad upon the ammonia storage estimate and the measured NOx conversion rate to produce a first adjusted DEF dosing rate. An amount of ammonia-equivalent stored on the hydrolysis catalyst is then estimated, and the first adjusted DEF dosing rate is adjusted bad upon the ammonia-equivalent storage estimate to produce a cond adjusted DEF dosing rate. DEF is then injected at the cond adjusted DEF dosing rate.
牙齿松动能自己恢复吗申请人：Perkins Engines Company Limited家居diy
地址：Peterborough GB
传统风格国籍：GB
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