ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,280, issued on Nov. 25, was assigned to YANMAR POWER TECHNOLOGY Co. LTD. (Osaka, Japan).
"Construction machine emission device" was invented by Yoshihisa Ishikawa (Chikoyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pivoting work vehicle includes an engine, an exhaust gas treatment apparatus, and a hood. The exhaust gas treatment apparatus is configured to treat exhaust gas from the engine. The hood is configured to cover the engine and the exhaust gas treatment apparatus. The exhaust gas treatment apparatus includes a DPF device and an SCR device. The exhaust gas is treated first by the DPF device, then by the SCR device. The DPF device...