公开(公告)号：US10427099B2

公开(公告)日：2019-10-01

申请号：US16142293

申请日：2018-09-26

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Jeffrey W. Denton ,  Eric A. Hein ,  Attila Kovacs ,  Kevin R. Reeder ,  Jonar Mendoza ,  Gary R. Moore ,  Manoj K. Sampath ,  John R. Hardin

IPC: B01D53/94 ,  B01F5/04 ,  B01F5/06 ,  B01F3/04 ,  F01N3/20

Abstract: A mixing system for an exhaust system includes a first mixing device having a plurality of first auger blades and an inlet having a first cross-sectional area. A second mixing device is separate and downstream from the first mixing device and includes a second auger blade. The second mixing device includes an inlet having a second cross-sectional area greater than the first cross-sectional area. A flow path longitudinal centerline of the first mixing device extends at an angle to a flow path longitudinal centerline of the second mixing device. A flow path longitudinal centerline of the first mixing device intersects the second auger blade. The first mixing device is disposed within a first portion of an exhaust pipe and the second mixing device is disposed in a second portion of the exhaust pipe. The second portion has a larger cross-sectional area than the first portion.

公开(公告)号：US10086333B2

公开(公告)日：2018-10-02

申请号：US15050504

申请日：2016-02-23

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Jeffrey W. Denton ,  Eric A. Hein ,  Attila Kovacs ,  Kevin R. Reeder ,  Jonar Mendoza ,  Gary R. Moore ,  Manoj K. Sampath ,  John R. Hardin

IPC: F01N1/00 ,  F01N3/10 ,  F01N3/00 ,  B01D53/94 ,  B01F5/04 ,  B01F5/06 ,  B01F3/04 ,  F01N3/20

Abstract: A mixing system for an exhaust aftertreatment system includes a first mixing device having a plurality of first auger blades and an inlet having a first cross-sectional area. A second mixing device is separate and downstream from the first mixing device and includes a second auger blade. The second mixing device includes an inlet having a second cross-sectional area greater than the first cross-sectional area. A plurality of flow paths created by the first mixing device are recombined into a single flow path between the first and second mixing devices. A longitudinal center line of the first mixing device is offset from a longitudinal center line of the second mixing device.