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. 23, 2019
Filed:
Aug. 21, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
An exhaust purification system of an internal combustion engine comprising an exhaust treatment catalyst () arranged in an engine exhaust passage and a heat and hydrogen generation device () able to feed only heat or heat and hydrogen to the exhaust treatment catalyst (). When the warm-up operation of the heat and hydrogen generation device () is completed and a reforming action by a reformer catalyst () becomes possible, if the temperature of the exhaust treatment catalyst () is a preset activation temperature or more, a partial oxidation reaction is performed at the heat and hydrogen generation device () and the generated heat and hydrogen are fed to the exhaust treatment catalyst (). At this time, if the temperature of the exhaust treatment catalyst () is less than the preset activation temperature, a complete oxidation reaction by a lean air-fuel ratio is continued and a heat is fed to the exhaust treatment catalyst ().