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:
Dec. 06, 2016
Filed:
Nov. 06, 2012
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Satoshi Yamada, Tokyo, JP;
Tomohide Yamada, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
It is intended to provide an exhaust gas purification system for an internal combustion engine, which is capable of suppressing HC emission increase and raising the temperature of an exhaust gas purifier at an early stage while maintaining stable combustion during the warm-up operation such as immediately after the engine starting. The system is provided with: an air flow control unitfor reducing a flow rate of air supplied to the engineto raise a temperature of the exhaust gas exhausted from the engine; and an activation timing control unitfor controlling a timing of activating the air flow control unit, and the activation timing control unit is configured to control the timing of activating the air flow control unitso that a combustion state in the enginedoes not become unstable when the air flow control unitis activated and the air to be supplied to the engineis reduced.