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Engine mechanical (piston, piston pin and piston ring)
Structure
Piston and piston pin
• The heat-resistant aluminum alloy is used for the piston. The specially shaped combustion chamber is
adopted in order to realize excellent combustion and fuel-efficiency.
• The outer shape of the piston is optimally profiled with taking a thermal expansion and piston
oscillations into account.
• The skirt coating is adopted for the piston in order to reduce noises.
• Piston cooling jet system is used to cool down in order to maintain the appropriate temperature.
• The structure with a cooling cavity ensures reliability for high pressure.
• Insufficient jets due to deformed or improperly installed cooling jet cause defectiveness in cooling the
piston, possibly ending up with malfunctions.
• The piston pin is made of case hardening steel, to which the full-floating type is applied, providing
endurance for high-load.
Piston
Matching
marks
Intake side
Piston
Location of "0"
Exhaust side
Intake side
Piston pin
Oil hole
Location of "0"
Piston and piston pin
Exhaust side
