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:
Jul. 23, 2019
Filed:
Sep. 12, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Kiyoshi Fujiwara, Susono, JP;
Yuji Miyoshi, Susono, JP;
Shinichi Takeshima, Numazu, JP;
Hiromasa Nishioka, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
An exhaust purification system of an internal combustion engine comprising at least two exhaust treatment catalysts arranged in an engine exhaust passage, a hydrogen feed source, and a plurality of hydrogen feed passages for feeding hydrogen from the hydrogen feed source to the exhaust treatment catalysts. When warming up the exhaust treatment catalysts, hydrogen is fed from the hydrogen feed source through the corresponding hydrogen feed passage to the exhaust treatment catalyst with the larger rise of the exhaust removal rate when hydrogen is fed among the exhaust treatment catalysts.