The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2018
Filed:
May. 12, 2015
Tenneco Gmbh, Edenkoben, DE;
Bertram Stelzer, Neustadt, DE;
Joachim Gehrlein, Rheinzabern, DE;
Andreas Lang, Hassloch, DE;
Michael Wolf, Herxheim, DE;
Christoph Burg, Steinweiler, DE;
TENNECO GMBH, Edenkoben, DE;
Abstract
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 M, is provided, wherein stage Mhas openings having an average opening cross section Q. At least one second-order stage M, is provided, with openings having an average opening cross section Q, where Q>=f Q, where 5<=f<=25.