公开(公告)号：US11761365B2

公开(公告)日：2023-09-19

申请号：US17642628

申请日：2020-09-11

Applicant: Cummins Inc.

Inventor： Z. Gerald Liu ,  Apoorv Kalyankar ,  Niklas Schmidt ,  Achuth Mannannur

IPC: F01N3/28 ,  F01N3/20

CPC classification number: F01N3/2892 ,  F01N3/2066 ,  F01N2240/20 ,  F01N2610/02 ,  F01N2610/1453

Abstract: Apparatus and method for mixing reductant in an exhaust gas flow using virtual interception. Embodiments include an exhaust gas and reductant mixer comprising a body, a first flow device, and a reductant entry port. The body defines an exhaust gas flow path having a central portion. The first flow device swirls the exhaust gas in a circumferential direction with respect to the gas flow path. The reductant entry port introduces the reductant into the gas flow path at a location downstream from the first flow device and in an introduction direction (1) offset from the central portion, and (2) opposite the circumferential direction.