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:
Nov. 30, 2021
Filed:
Dec. 22, 2017
Nissan Motor Co., Ltd., Yokohama, JP;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
An internal combustion engine () is provided with a turbocharger (), and is configured to be switchable between a stoichiometric combustion mode having a theoretical air-fuel ratio as a target air-fuel ratio and a lean combustion mode having a lean air-fuel ratio as a target air-fuel ratio. An air bypass valve () is provided in an air bypass passage () communicating a collector () on the downstream of a throttle valve () with the upstream side of a compressor () in an intake passage (). At the time of the shifting from the lean combustion mode to the stoichiometric mode, the throttle valve () is closed and the air bypass valve () is temporarily opened to decrease the pressure inside the collector () quickly.