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Patent Searching and Data


Title:
SPARK IGNITION INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2015222055
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a spark ignition internal combustion engine capable of reducing unburned fuel loss without influencing the durability of a piston ring.SOLUTION: A spark ignition internal combustion engine 1 of the present invention is a spark ignition internal combustion engine 1 in which a narrow space 15 is formed between an outer circumferential portion of a top surface of a piston and an inner wall surface 4a of a cylinder head, and is configured so that a head-side concave portion 26 retreating from the cylinder head inner wall surface 4a is formed in a portion of the cylinder head inner wall surface 4a facing the piston top surface outer circumferential portion 13.

Inventors:
AKIHISA DAISUKE
KITAYAMA TAKESHI
Application Number:
JP2014107093A
Publication Date:
December 10, 2015
Filing Date:
May 23, 2014
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F02B23/08; F02B23/00; F02F1/24
Attorney, Agent or Firm:
山本 晃司
江上 達夫
中村 聡延