发明授权
- 专利标题： Method for dosing an urea based reducing agent into a gas exhaust stream
- 专利标题（中）： 将尿素还原剂加入到排气流中的方法
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申请号： US13261306申请日： 2010-12-15
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公开(公告)号： US08752365B2公开(公告)日： 2014-06-17
- 发明人: John Campbell , Harald Hagin , Fritz Papst
- 申请人： John Campbell , Harald Hagin , Fritz Papst
- 申请人地址： CH Arbon
- 专利权人： Iveco Motorenforschung AG
- 当前专利权人： Iveco Motorenforschung AG
- 当前专利权人地址： CH Arbon
- 代理机构： Stetina Brunda Garred & Brucker
- 国际申请： PCT/EP2010/069723 WO 20101215
- 国际公布： WO2011/073240 WO 20110623
- 主分类号： F01N3/00
- IPC分类号： F01N3/00
摘要：
The present invention provides for a method for dosing an urea-based reducing agent into a exhaust gas stream generated from a combustion engine and addressed to an aftertreatment system, e.g. SCR or SCRT system. According to the method of the invention the gas exhaust stream is conveyed into a dosing housing which develops along a longitudinal axis. In particular the gas is conveyed by generating an annular inlet jet inclined with respect of said axis. The urea-based reducing agent is injected by generating, inside the housing, an urea-based reducing agent spray which is preferably coaxial to said axis of the housing.