公开(公告)号：US09957870B2

公开(公告)日：2018-05-01

申请号：US15315051

申请日：2015-05-12

申请人： TENNECO GMBH

发明人： Bertram Stelzer ,  Joachim Gehrlein ,  Andreas Lang ,  Michael Wolf ,  Christoph Burg

IPC分类号： F01N3/10 ,  F01N3/28 ,  B01F3/04 ,  B01F5/04 ,  B01F5/00 ,  B01D53/94 ,  B01D46/00 ,  F01N3/20 ,  F01N3/021

CPC分类号： F01N3/2892 ,  B01D46/0027 ,  B01D53/9418 ,  B01D2279/30 ,  B01F3/04049 ,  B01F5/0062 ,  B01F5/0451 ,  B01F2005/0091 ,  F01N3/021 ,  F01N3/2066 ,  F01N2470/04 ,  F01N2610/1453 ,  Y02T10/24

摘要： An exhaust-gas mixing pipe for admixing additive into an exhaust-gas stream of a combustion engine. The housing wall has multiple rows, arranged over a circumference U, of openings through which gas can flow into the interior of the pipe, wherein the at least one opening of a row forms in each case one stage M characterized according to its size by the average opening cross section Q of the openings, wherein the sum of all the opening cross sections Q of all the openings of all the rows of the exhaust-gas mixing pipe is equal to SQ. In that context, at least one first-order stage M1, is provided, wherein stage M1 has openings having an average opening cross section Q1. At least one second-order stage M2, is provided, with openings having an average opening cross section Q2, where Q2>=f Q1, where 5