US 12,455,267 B2
DEF quality sensor integrated into a DEF tank with replaceable control circuitry
Paul Boon Charintranond, Palatine, IL (US); Navtej Singh, Arlington Heights, IL (US); and John Anthony Williams, Palatine, IL (US)
Assigned to International Engine Intellectual Property Company, LLC, Lisle, IL (US)
Filed by International Engine Intellectual Property Company, LLC, Lisle, IL (US)
Filed on Feb. 6, 2023, as Appl. No. 18/105,965.
Prior Publication US 2024/0264134 A1, Aug. 8, 2024
Int. Cl. G01N 33/00 (2006.01)
CPC G01N 33/00 (2013.01) 3 Claims
OG exemplary drawing
 
1. A DEF quality sensor with removable control circuitry retained in a sensor opening at a bottom of a DEF tank, comprising:
a housing including a base housing portion and a removable cover, an outer perimeter of said base housing portion is retained in the sensor opening;
wherein a substantial part of the said base housing portion is located inside the DEF tank; and
said control circuitry is retained in said removable cover outside the DEF tank, said removable cover is selectively detachable from said base housing portion.