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. 29, 2009
Filed:
Apr. 20, 2006
Sunki I, Kanagawa, JP;
Takao Inoue, Kanagawa, JP;
Kouichi Mori, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An exhaust system for an internal-combustion engine comprises an exhaust bypass in parallel with an upstream portion of a main exhaust path having a main catalytic converter in a downstream portion thereof; an exhaust bypass catalytic converter provided in the exhaust bypass; and a flow path switching valve for blocking the main exhaust path at the upstream portion thereof. The exhaust system includes an ignition timing adjustment mechanism for adjusting ignition timing to delay sparking when the flow path switching valve is switched from the closed condition to the open condition thereof. A control method for the exhaust system is also disclosed.