US 12,188,842 B2
Outlet sampling system for aftertreatment system
Dylan J. Richardson, Fitchburg, WI (US); Monika Agrawal, Pune (IN); Jim L. Alonzo, Verona, WI (US); and Amol Yuvraj Patil, Pune (IN)
Assigned to Cummins Emission Solutions Inc., Columbus, IN (US)
Appl. No. 18/685,792
Filed by Cummins Emission Solutions Inc., Columbus, IN (US)
PCT Filed Aug. 22, 2022, PCT No. PCT/US2022/041073
§ 371(c)(1), (2) Date Feb. 22, 2024,
PCT Pub. No. WO2023/028002, PCT Pub. Date Mar. 2, 2023.
Claims priority of application No. 202141037998 (IN), filed on Aug. 23, 2021.
Prior Publication US 2024/0328899 A1, Oct. 3, 2024
Int. Cl. G01M 15/10 (2006.01); B01D 53/94 (2006.01); G01N 1/22 (2006.01)
CPC G01M 15/10 (2013.01) [B01D 53/944 (2013.01); B01D 53/9477 (2013.01); B01D 53/9495 (2013.01); G01N 1/22 (2013.01); B01D 2257/502 (2013.01); B01D 2257/702 (2013.01); B01D 2258/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An exhaust gas aftertreatment system comprising:
an outlet housing body;
an outlet housing fitting;
an outlet sampling system comprising:
a sampling bowl coupled to the outlet housing body and extending away from the outlet housing body so as to define a sampling bowl cavity between the sampling bowl and the outlet housing body, and
a sampling ring coupled to the sampling bowl and separated from the outlet housing body by the sampling bowl, the sampling ring coupled to the outlet housing fitting and defining a sampling ring cavity, the sampling ring comprising:
a plurality of sampling ring inlet apertures, each of the sampling ring inlet apertures configured to receive exhaust gas from within the outlet housing body and provide the exhaust gas to the sampling ring cavity, and
a connector that extends along the sampling bowl and defines a connector cavity that is contiguous with the sampling ring cavity and the sampling bowl cavity; and
an outlet sensor coupled to the outlet housing body so as to have a portion that is disposed within the sampling bowl cavity.