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:
Apr. 30, 2019
Filed:
Sep. 20, 2016
Yanmar Co., Ltd., Osaka-shi, Osaka, JP;
Hideo Shiomi, Osaka, JP;
Taiki Hori, Osaka, JP;
YANMAR CO., LTD., Osaka, JP;
Abstract
An engine device includes an engine, an exhaust gas purification device arranged on an exhaust path of the engine, and an engine control device that controls drive of the engine. The engine control device executes a plurality of regeneration controls with which particulate matter accumulated in the exhaust gas purification device is combusted and removed. As the plurality of regeneration controls, at least non-work regeneration control, in which an exhaust gas temperature is raised in combination of post-injection and a predetermined high rotational speed, is included. The engine control device drives the engine so as to solely combust and remove the particulate matter in the non-work regeneration control and compulsorily executes isochronous control in which a rotational speed of the engine is maintained constant, irrespective of variation in load of the engine.