公开(公告)号：US09664082B2

公开(公告)日：2017-05-30

申请号：US14293614

申请日：2014-06-02

Applicant: Caterpillar Inc.

Inventor： Yong Yi ,  Jay Venkataraghavan ,  Arvind Jujare ,  Steven Ray Lewis ,  Muheng Zhang

IPC: F01N3/28 ,  F01N3/20 ,  B01F3/04 ,  B01F5/04 ,  B01F15/02 ,  B01F5/02 ,  B01F5/06

CPC classification number: F01N3/2073 ,  B01F3/04014 ,  B01F3/04049 ,  B01F3/04078 ,  B01F5/0268 ,  B01F5/04 ,  B01F5/0473 ,  B01F5/0485 ,  B01F5/0619 ,  B01F15/0254

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.