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:
Aug. 23, 2022

Filed:

Feb. 17, 2021
Applicant:

Deere & Company, Moline, IL (US);

Inventors:

Shyan-Cherng Huang, Cedar Falls, IA (US);

Kiran Shekarappa, Bangalore, IN;

Assignee:

DEERE & COMPANY, Moline, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 3/28 (2006.01); B01D 53/94 (2006.01); B05B 17/06 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2066 (2013.01); B01D 53/9418 (2013.01); B01D 53/9431 (2013.01); B01D 53/9436 (2013.01); B01D 53/9477 (2013.01); F01N 3/2892 (2013.01); B01D 2255/904 (2013.01); B05B 17/0607 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1453 (2013.01);
Abstract

A DEF system for use with an internal combustion engine, the DEF system including a primary flowpath extending between a first inlet and a first outlet, where the first inlet is open to and configured to receive exhaust gasses from the internal combustion engine. The DEF system also includes a secondary flowpath including a second inlet open to the primary flowpath downstream of the first inlet and upstream of the first outlet, a second outlet open to the primary flowpath downstream of the secondary inlet and upstream of the first outlet, and an injector assembly configured to inject DEF into the secondary flowpath.


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