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:
May. 07, 2019
Filed:
Oct. 31, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
An exhaust treatment catalyst () arranged in an engine exhaust passage and a heat and hydrogen generation device () are provided. The amount of fuel fed to the heat and hydrogen generation device (), which is required for making the temperature of the exhaust treatment catalyst () rise by exactly a predetermined temperature rise by heat and hydrogen fed from the heat and hydrogen generation device () when the exhaust treatment catalyst () is not poisoned and does not thermally deteriorate, is calculated based on the amount of exhaust gas. When fuel of the reference feed fuel amount corresponding to the amount of exhaust gas is fed to the heat and hydrogen generation device () and the temperature rise of the exhaust treatment catalyst () fails to reach the predetermined temperature rise, the treatment for restoration from poisoning of the exhaust treatment catalyst () is performed.