The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
Mar. 14, 2025
Yanmar Holdings Co., Ltd., Osaka, JP;
Kenta Mitarai, Osaka, JP;
Ken Kawabe, Osaka, JP;
YANMAR HOLDINGS CO., LTD., Osaka, JP;
Abstract
An engine device is an engine device comprising an engine which is operated by a fuel containing at least ammonia, and comprises: an exhaust passage through which the exhaust gas exhausted from the engine is flowed in the exhaust direction; a selective reduction catalyst which is provided in the exhaust passage and reduces nitrogen oxides contained in the exhaust gas by a reducing agent; an ammonia adsorption catalyst which is provided in the exhaust passage on the upper stream side than the selective reduction catalyst in the exhaust direction, and adsorbs ammonia contained in the exhaust gas; a first bypass passage which is connected to the exhaust passage to bypass the ammonia adsorption catalyst; and a first path switch valve which is provided on the upper stream side than the ammonia adsorption catalyst in the exhaust direction and switches whether the flow of the exhaust gas is passed through the ammonia adsorption catalyst or not.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile