Title:
Combustion chamber structure of a direct-injection engine
Document Type and Number:
Japanese Patent JP6056840
Kind Code:
B2
Abstract:
A fuel injection valve is provided for a ceiling portion of a cylinder head. A tip of an ignition electrode is arranged in the vicinity of an injection tip of the fuel injection valve. A recess is provided for the ceiling portion. A center of a cavity is shifted with respect to a bore center of the cylinder. In a vertical cross-section of the inside of a combustion chamber taken along a plane passing through the injection tip of the fuel injection valve and the tip of the ignition electrode, a distance from the injection tip to a wall surface of the cavity at a side at which the ignition electrode is provided is longer than a distance from the injection tip to a wall surface of the cavity at an opposite side.
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Inventors:
Kazuaki Narahara
Nobuyuki Ota
Nou Yoshinao
Akira Yinyama
Nobuyuki Ota
Nou Yoshinao
Akira Yinyama
Application Number:
JP2014262406A
Publication Date:
January 11, 2017
Filing Date:
December 25, 2014
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B23/08; F02B23/10; F02F3/26
Domestic Patent References:
| JP11200867A | ||||
| JP10131758A | ||||
| JP2005139988A | ||||
| JP2013194644A |
Attorney, Agent or Firm:
Maeda patent office
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