CYLINDER DIRECT INJECTION TYPE INTERNAL COMBUSTION ENGINE

• Main Authors: AKIHISA DAISUKE, HAMADA AYUMI, SERIZAWA AKIRA, TOSA NAOMI
• Format: Patent
• Language: English
• Published: 24.11.2006
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To provide a direct injection type internal combustion engine preventing adherence of fuel to a substantial portion of a piston top face and a cylinder inner peripheral wall, and having a piston with small compression height and sufficient strength. SOLUTION: This direct injection type internal combustion engine is provided with the flat piston of which top face virtually has no cavity, a pair of first ribs positioned on the piston top face and extended from an outer peripheral part of the piston to an outer peripheral part in the opposite side via an approximately central part, and a pair of second ribs positioned between the pair of first ribs and bridging and connecting the pair of first ribs. Fuel is injected toward a piston top face partition partitioned by the first and second ribs on the piston top face, by a fuel injection valve. COPYRIGHT: (C)2007,JPO&INPIT