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:
Jan. 28, 2025

Filed:

May. 24, 2024
Applicant:

Cummins Emission Solutions Inc., Columbus, IN (US);

Inventors:

Masoud Ziabakhsh Deilami, Columbus, IN (US);

Joe V. Hill, Columbus, IN (US);

Jens Honeck, Ahorn, DE;

Ralf Rohrmueller, Faulbach, DE;

Assignee:

Cummins Emission Solutions Inc., Columbus, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/206 (2013.01); F01N 2610/146 (2013.01); F01N 2900/1808 (2013.01);
Abstract

An exhaust aftertreatment system includes a first decomposition chamber that receives exhaust and treatment fluid, a first dosing module that includes a first injector that injects the treatment fluid into the first decomposition chamber, and a second decomposition chamber disposed downstream of the first decomposition chamber and that receives the exhaust and the treatment fluid from the first decomposition chamber. The exhaust aftertreatment system further includes a second dosing module that includes a second injector that injects the treatment fluid into the second decomposition chamber and a pressure sensor that generates a pressure signal based on a pressure of the treatment fluid in the second dosing module. The exhaust aftertreatment system further includes a variable resistor selectively switchable between multiple resistances.


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