INTERNAL COMBUSTION ENGINE AND METHOD OF CONTROLLING SAME

Title:

INTERNAL COMBUSTION ENGINE AND METHOD OF CONTROLLING SAME

Document Type and Number:

WIPO Patent Application WO/2019/123624

Kind Code:

A1

Abstract:

An internal combustion engine (1) is provided with a turbo charger (2), and configured to be switched to a stoichiometric combustion mode having a theoretical air-fuel ratio as a target air-fuel ratio, or a lean combustion mode having a lean air-fuel ratio as a target air-fuel ratio. An air bypass valve (20) is provided in an air bypass passageway (19) providing communication between a collector (11a) disposed downstream of a throttle valve (12) and the upstream side of a compressor (2b) in an intake passageway (11). During transition from the lean combustion mode to the stoichiometric combustion mode, the throttle valve (12) is closed and the air bypass valve (20) is temporarily opened to decrease the pressure inside the collector (11a) quickly.

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Inventors:

ARAKI TAKASHI (JP)
HAMAMOTO TAKAYUKI (JP)
KIMURA YOSHIYASU (JP)

Application Number:

PCT/JP2017/046104

Publication Date:

June 27, 2019

Filing Date:

December 22, 2017

Export Citation:

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Assignee:

NISSAN MOTOR (JP)

International Classes:

F02D23/00

Foreign References:

JP2014190264A	2014-10-06
JP2014190339A	2014-10-06
JP2008121511A	2008-05-29

Other References: