Title:
Internal-combustion engine
Document Type and Number:
Japanese Patent JP6222167
Kind Code:
B2
Abstract:
A low-temperature cooling water channel formed in the internal combustion engine includes a water jacket that covers at least one portion of a wall surface of an intake port. The intake port has a cooled wall surface that is covered by the water jacket, and a non-cooled wall surface that is not covered by the water jacket. An airflow control valve is provided on an intake-air upstream side of the cooled wall surface. The airflow control valve is configured to be capable of changing a ratio between a flow rate of intake air that flows along the side of the cooled wall surface and a flow rate of intake air that flows along the side of the non-cooled wall surface. The airflow control valve is preferably configured as a tumble control valve (TCV).
Inventors:
Kohei Kodama
Shintaro Utsumi
Shintaro Utsumi
Application Number:
JP2015105598A
Publication Date:
November 01, 2017
Filing Date:
May 25, 2015
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02B31/06; F01P7/16; F02F1/42
Domestic Patent References:
| JP60155771U | ||||
| JP62247112A | ||||
| JP57081118A | ||||
| JP2014163366A | ||||
| JP2013256879A | ||||
| JP2013044299A | ||||
| JP2007032560A | ||||
| JP2010174722A | ||||
| JP2153223A | ||||
| JP59172230U | ||||
| JP61096127A |
Foreign References:
| WO2012120668A1 | ||||
| US20030034001 |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi
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