US 12,087,220 B2
Exhaust gas aftertreatment system
Colin L. Norris, Columbus, IN (US); Matthew Henry, Columbus, IN (US); Stephen W. Caddy, Huddersfield (GB); Randolph G. Zoran, McFarland, WI (US); Stephen M. Holl, Columbus, IN (US); Matthew Robert Brookes, Holmfirth (GB); Jamie Archer, Holmfirth (GB); and John M. Clark, Leeds (GB)
Assigned to Cummins Emission Solutions Inc., Columbus, IN (US)
Filed by Cummins Emission Solutions Inc., Columbus, IN (US)
Filed on Aug. 17, 2023, as Appl. No. 18/235,231.
Application 18/235,231 is a division of application No. 16/943,812, filed on Jul. 30, 2020, granted, now 11,808,192.
Claims priority of provisional application 62/886,495, filed on Aug. 14, 2019.
Prior Publication US 2023/0392531 A1, Dec. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F01N 3/20 (2006.01); B01D 53/94 (2006.01); B01F 23/213 (2022.01); B01F 25/314 (2022.01); B01F 27/112 (2022.01); F02B 37/18 (2006.01); G09G 3/3225 (2016.01)
CPC G09G 3/3225 (2013.01) [B01D 53/9431 (2013.01); B01F 23/2132 (2022.01); B01F 25/314 (2022.01); B01F 27/112 (2022.01); F01N 3/2066 (2013.01); F02B 37/183 (2013.01); B01F 2215/0422 (2013.01); F01N 2610/08 (2013.01); F01N 2610/1433 (2013.01); F01N 2610/1453 (2013.01); G09G 2320/0233 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An exhaust gas system comprising:
an engine-turbine exhaust gas conduit configured to receive exhaust gas;
a turbocharger comprising a turbine coupled to the engine-turbine exhaust gas conduit;
a turbine-housing exhaust gas conduit coupled to the turbine;
an injection housing coupled to the turbine-housing exhaust gas conduit and centered on an injection housing axis;
a dosing module coupled to the injection housing and comprising an injector configured to dose reductant into the injection housing, the injector centered on an injector axis; and
a bypass system comprising:
a bypass inlet conduit coupled to the engine-turbine exhaust gas conduit,
a bypass valve coupled to the bypass inlet conduit, and
a bypass outlet conduit coupled to the bypass valve and the injection housing, the bypass outlet conduit centered on a bypass outlet conduit axis;
wherein the injection housing axis is intersected by an injection housing radial plane that is orthogonal to the injection housing axis;
wherein the injection housing axis is intersected by a vertical axis that is orthogonal to the injection housing axis and extends along the injection housing radial plane;
wherein the bypass outlet conduit axis is separated from the vertical axis by a vertical offset angle measured about the injection housing axis, when viewed along the injection housing axis; and
wherein the vertical offset angle is between 15° and 345°, inclusive.