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:
May. 30, 2017

Filed:

Jun. 02, 2014
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Yong Yi, Dunlap, IL (US);

Jay Venkataraghavan, Dunlap, IL (US);

Arvind Jujare, Peoria, IL (US);

Steven Ray Lewis, Peoria, IL (US);

Muheng Zhang, Peoria, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/28 (2006.01); F01N 3/20 (2006.01); B01F 3/04 (2006.01); B01F 5/04 (2006.01); B01F 15/02 (2006.01); B01F 5/02 (2006.01); B01F 5/06 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2073 (2013.01); B01F 3/04014 (2013.01); B01F 3/04049 (2013.01); B01F 3/04078 (2013.01); B01F 5/0268 (2013.01); B01F 5/04 (2013.01); B01F 5/0473 (2013.01); B01F 5/0485 (2013.01); B01F 5/0619 (2013.01); B01F 15/0254 (2013.01);
Abstract

A mixer is disclosed for use in a reductant dosing system. The mixer may have an impingement floor located within an intended fluid injection path and generally parallel with a flow direction through the mixer. The mixer may also have a first side wall connected along a lengthwise edge of the impingement floor, a second side wall connected along an opposing lengthwise edge of the impingement floor, and a plurality of shelves extending between the first and second side walls. The plurality of shelves each may include a plurality of vanes that promote mixing of an injected fluid. One or more of the plurality of shelves may extend different distances upstream opposite the flow direction.


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