US 11,808,192 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 Jul. 30, 2020, as Appl. No. 16/943,812.
Claims priority of provisional application 62/886,495, filed on Aug. 14, 2019.
Prior Publication US 2021/0047957 A1, Feb. 18, 2021
Int. Cl. F01N 3/20 (2006.01); F02B 37/18 (2006.01); B01D 53/94 (2006.01); B01F 23/213 (2022.01); B01F 25/314 (2022.01); B01F 27/112 (2022.01)
CPC F01N 3/2066 (2013.01) [B01D 53/9431 (2013.01); B01F 23/2132 (2022.01); B01F 25/314 (2022.01); B01F 27/112 (2022.01); 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)] 23 Claims
OG exemplary drawing
 
1. An exhaust gas system comprising:
an engine-turbine exhaust gas conduit configured to receive exhaust gas from an engine;
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 bypass outlet conduit axis does not intersect the injection housing axis; and
wherein the injector axis and the bypass outlet conduit axis are separated by a radial angle that is less than 180° when viewed along the injection housing axis.