COMBUSTION CHAMBER STRUCTURE FOR ENGINES

Title:

COMBUSTION CHAMBER STRUCTURE FOR ENGINES

Document Type and Number:

WIPO Patent Application WO/2018/221306

Kind Code:

A1

Abstract:

A combustion chamber structure for engines, comprising: a piston crown surface; a combustion chamber ceiling surface formed in a cylinder head; an injector and a spark plug that are provided in the combustion chamber ceiling surface; and an intake port and an exhaust port that are opened in the ceiling surface of the combustion chamber. In the planar view from one side in the cylinder axial direction, the injector is configured such that fuel can be injected towards at least the exhaust port side, when the side having the intake port opened therein is the intake port side of the combustion chamber and the side having the exhaust port opened therein is the exhaust port side of the combustion chamber, using the site where the ignition section of the spark plug is arranged as the reference therefor. Provided in the combustion chamber is an inverse squish flow generating unit that draws the air-fuel mixture into the intake port side in conjunction with the movement of the piston during the expansion stroke.

Inventors:

IMAMURA SATOSHI (JP)
FUKUMA MASAKI (JP)
NAKAHARA YASUSHI (JP)
INOUE ATSUSHI (JP)
MATSUMOTO KOTA (JP)
UEKI YOSHIHARU (JP)
KAWANO MICHIHARU (JP)
HONDA YUYA (JP)
ONISHI KENTO (JP)

Application Number:

PCT/JP2018/019593

Publication Date:

December 06, 2018

Filing Date:

May 22, 2018

Export Citation:

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Assignee:

MAZDA MOTOR (JP)

International Classes:

F02B23/10; F02F3/26; F16J1/00

Foreign References:

JPH10131756A	1998-05-19
JP2004232583A	2004-08-19
JPH11107759A	1999-04-20
JP2001159315A	2001-06-12
JP2016094925A	2016-05-26

Other References: