CYLINDER INJECTION TYPE SPARK IGNITION ENGINE

PROBLEM TO BE SOLVED: To connect a plate member with a piston main body firmly and to prevent separation and crack on a boundary face of the piston member and the plate member even when their coefficients of thermal expansion differ from each other. SOLUTION: In this cylinder injection type spark ig...

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Bibliographic Details
Main Authors NISHINO NAOHISA, KOIKE MAKOTO
Format Patent
LanguageEnglish
Published 18.12.2002
Edition7
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
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Summary:PROBLEM TO BE SOLVED: To connect a plate member with a piston main body firmly and to prevent separation and crack on a boundary face of the piston member and the plate member even when their coefficients of thermal expansion differ from each other. SOLUTION: In this cylinder injection type spark ignition engine 10, the plate member 36 is arranged on a top face 16A of a piston 16, and heat transfer from the plate member 36 to the piston main body 16B is prevented by a heat transfer prevention part 40. Consequently, temperature of the plate member 36 is quickly raised by ignition combustion of an air-fuel mixture formed by injecting fuel from a fuel injection valve 24 into a combustion chamber 18 to promote the evaporation of fuel collided against the plate member 36. Since the circumference of the plate member 36 is connected with the piston main body 16B by a compound layer 38, the plate member 36 can be firmly connected with the piston main body 16B. The compound layer 38 between the plate member 36 and the piston main body 16B prevents separation and crack on the boundary face of the piston main body 16B and the plate member 36 even when their coefficients of thermal expansion differ from each other.
Bibliography:Application Number: JP20010167215