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:
Mar. 28, 2017
Filed:
Jul. 11, 2013
Kotaro Suzuki, Minamiashigara, JP;
Kotaro Suzuki, Minamiashigara, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
Abstract
An exhaust gas purification apparatus of an internal combustion engine includes: an NHgenerating catalyst which generates NHfrom NOx and Hat a rich air-fuel ratio; an in-cylinder injection valve which injects fuel into a cylinder; and a control apparatus which, when setting a rich air-fuel ratio, sets a timing of fuel injection from the in-cylinder injection valve to a second half of a compression stroke when a temperature of the NHgenerating catalyst is within a first prescribed range and sets a timing f of fuel injection from the in-cylinder injection valve to a first half of an intake stroke when the temperature of the NHgenerating catalyst is within a second prescribed range that is a higher temperature range than the first prescribed range.