US Patent Issued to Caterpillar on Feb. 10 for "Systems and methods for monitoring nitrogen dioxide variability in an engine aftertreatment system" (Illinois, Indiana Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,242, issued on Feb. 10, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Systems and methods for monitoring nitrogen dioxide variability in an engine aftertreatment system" was invented by Joshua Lynn Ratts (Pine Village, Ind.), Hrishi Lalit Shah (Peoria, Ill.) and Eric Lee Schroeder (Germantown Hills, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An internal combustion engine system is described herein. The system uses a NOx detector at the exhaust of an internal combustion engine to compensate for the effects of NO2 on the measurements of NOx detectors at other locations, such as the input and the output of an SCR system. A controller uses ...