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:
Sep. 27, 2016
Filed:
Feb. 25, 2013
Teruhiko Miyake, Shizuoka, JP;
Teruhiko Miyake, Shizuoka, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
An internal combustion is configured such that a hydrocarbon supply valve () and an exhaust gas purification catalyst () are arranged in an engine exhaust gas passage and such that NOcontained within exhaust gas is purified by spraying hydrocarbon from the hydrocarbon supply valve () at predetermined intervals. When SOis to be released from the exhaust gas purification catalyst (), the air-fuel ratio of exhaust gas which flows into the exhaust gas purification catalyst () is enriched by generating, within a cylinder, combustion gas having a rich air-fuel ratio, and after that the air-fuel ratio of exhaust gas which flows into the exhaust gas purification catalyst () is enriched by supplying hydrocarbon from the hydrocarbon supply valve ().