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.

Date of Patent:
Nov. 22, 2022

Filed:

Aug. 24, 2021
Applicants:

Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);

Tenneco Gmbh, Edenkoben, DE;

Inventors:

Thomas M. Harris, Jackson, MI (US);

Eric A. Hein, Neustadt-Diedesfeld, DE;

Assignees:

Tenneco Automotive Operating Company Inc., Lake Forest, IL (US);

Tenneco GmbH, Edenkoben, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2013 (2013.01); F01N 3/2066 (2013.01); F01N 2240/16 (2013.01); F01N 2530/04 (2013.01); F01N 2570/14 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1453 (2013.01);
Abstract

An exhaust treatment assembly for receiving exhaust gas from a motor vehicle includes a mix pipe, a sheath, and a heater. The mix pipe at least partially defines a passage adapted to receive the exhaust gas and a chemical reductant. The sheath includes a first end fluidly sealed to the mix pipe. At least a portion of the sheath is radially spaced apart from the mix pipe to at least partially define a gap. The heater is disposed in the gap. The heater is adapted to heat a reductant impingement surface.


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