公开(公告)号：US20170167360A1

公开(公告)日：2017-06-15

申请号：US15361511

申请日：2016-11-28

Applicant: MAZDA MOTOR CORPORATION

Inventor： Mitsunori WASADA ,  Tsuyoshi YAMAMOTO ,  Yasushi NAKAHARA ,  Takashi YOUSO ,  Hiroaki ABE ,  Takaaki NAGANO ,  Atsushi INOUE ,  Kazuhiro NAGATSU ,  Takashi KAMINAGA ,  Tatsuya FUJIKAWA

IPC: F02B23/10 ,  H01T13/20 ,  F02F1/24 ,  F02P15/02 ,  F02F3/28

CPC classification number: F02B23/101 ,  F02B2023/085 ,  F02F1/242 ,  F02F3/285 ,  F02P15/02 ,  H01T13/20 ,  Y02T10/125

Abstract: Injection of the fuel by the injector 43 creates a gas flow in the combustion chamber. The gas expands in a radial fashion from an axis of a cylinder toward a radial outside of the cylinder, and then flows from the radial outside along the cylinder head bottom face 221 toward the axis of the cylinder. The spark plug 41 has a gap positioned away from the axis of the cylinder toward the radial outside of the cylinder at a predetermined distance, and placed radially inwardly from a position opposite a rim of an opening of the cavity 242. A side electrode extends to be oriented in a direction perpendicular to the flow of the gas along the cylinder head bottom face. The gap has a center positioned near the cylinder head bottom face, and closer to an interior of a combustion chamber than to the cylinder head bottom face.