US 12,031,466 B2
Water drainage assemblies for aftertreatment systems
Shaila Sangmeshwar Kalyanshetti, Pune (IN); Jeffrey T. Sedlacek, Stoughton, WI (US); Collin P. Veele, Madison, WI (US); and Douglas Robert Farnsworth, Columbus, IN (US)
Assigned to CUMMINS EMISSION SOLUTIONS INC., Columbus, IN (US)
Filed by CUMMINS EMISSION SOLUTIONS INC., Columbus, IN (US)
Filed on Jan. 9, 2023, as Appl. No. 18/094,846.
Application 18/094,846 is a division of application No. 16/922,437, filed on Jul. 7, 2020, granted, now 11,572,822.
Claims priority of provisional application 62/876,292, filed on Jul. 19, 2019.
Prior Publication US 2023/0141549 A1, May 11, 2023
Int. Cl. F01N 13/08 (2010.01); F01N 3/00 (2006.01); F01N 13/14 (2010.01)
CPC F01N 13/085 (2013.01) [F01N 3/005 (2013.01); F01N 13/082 (2013.01); F01N 13/141 (2013.01); F01N 2470/00 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A water drainage assembly for an aftertreatment system, comprising:
a tube having an inlet structured to be coupled to an outlet conduit of an aftertreatment system;
a drain port extending through the tube;
a first baffle disposed in the tube, the first baffle having a first baffle first end attached to an inner surface of the tube at a first location, wherein at least a portion of the first baffle is inclined downwards with respect to gravity;
a second baffle disposed in the tube directly below the first baffle, the second baffle having a second baffle second end being coupled to the inner surface of the tube at a second location that is opposite to and below the first location, wherein at least a portion of the second baffle is inclined upwards with respect to gravity,
wherein the first baffle is structured to guide water entering the tube towards the second baffle, and the second baffle is structured to guide the water towards the drain port.