ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,903, issued on Oct. 28, was assigned to YANMAR HOLDINGS Co. LTD. (Osaka, Japan).
"Aftertreatment device and engine" was invented by Shinsuke Kasazaki (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are an aftertreatment device capable of purifying exhaust gas with a compact configuration and an engine including the aftertreatment device. An aftertreatment device includes: a first case that is a DPF case; a second case that is an SCR case; an exhaust connection pipe that connects the first case and the second case; a mixer arranged at an upstream end of the exhaust connection pipe in a flow direction of exhaust gas; and a urea w...