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:
Apr. 13, 2021

Filed:

Nov. 02, 2018
Applicant:

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

Inventors:

Vinay Kumar Joshi, Pune, IN;

Aaditya Barve, Ujjain, IN;

Anjesh Hemant Sahasrabudhe, Pune, IN;

Timothy M. Doyle, Greenwood, IN (US);

Stephen M. Holl, Columbus, IN (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/20 (2006.01); F01N 3/22 (2006.01); F01N 9/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); F01N 3/22 (2013.01); F01N 9/00 (2013.01); F01N 2560/06 (2013.01); F01N 2610/02 (2013.01); F01N 2610/08 (2013.01); F01N 2610/10 (2013.01); F01N 2610/14 (2013.01); F01N 2610/144 (2013.01); F01N 2610/1433 (2013.01); F01N 2900/1602 (2013.01); F01N 2900/1812 (2013.01); F01N 2900/1822 (2013.01);
Abstract

An aftertreatment system includes a reductant source, a junction, a dosing pump module, a valve assembly, and a dosing module. The reductant source stores reductant. The junction receives the reductant from the reductant source. The dosing pump module receives the reductant from the junction and selectively provides the reductant to a first conduit. The valve assembly receives the reductant from the first conduit. The valve assembly is operable between a first state, where the valve assembly provides the reductant to the junction, and a second state, where the valve assembly provides the reductant to a second conduit. The dosing module receives the reductant from the second conduit when provided by the valve assembly. The dosing module is configured to dose exhaust gases with the reductant when provided by the valve assembly.


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