Patent · US Active

Apparatus for the aftertreatment of the exhaust gases of diesel engines

US9587543B2 · kind B2 · utility

9Cited by

5References

7Claims

0Family size

Assignee

Tenneco GmbH · DE

Inventors

Sascha Haverkamp · Jockgrim, DE
Andreas Lang · Ettringen, DE
Michael Wolf · North Tonawanda, US

Key dates

Filing date	Nov 19, 2014
Grant date	Mar 7, 2017
Priority date	—
Expiry date	Feb 9, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An exhaust gas aftertreatment device, including a bent exhaust pipe, a mixing pipe having a closed end at the exhaust pipe bend and a bell-shaped widened portion in at least partial contact with the exhaust pipe at its opposite end, and a nozzle connected to a receptacle in the mixing pipe closed end for injecting an additive into the exhaust gases, with a mixing one in the exhaust pipe between the urea nozzle and the exhaust pipe outlet in which the exhaust gases flow around the mixing pipe symmetrically and form a double eddy in the mixing pipe.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.