COMBINATION OF CYLINDER AND PISTON RING

PROBLEM TO BE SOLVED: To provide a combination of a cylinder and a piston ring combining a sliding characteristic and strength and easy to manufacture. SOLUTION: A piston ring 1 has a complex Cr plated film 2 on the outer peripheral surface. The compound Cr plated film 2 has silicon nitride grains d...

Full description

Saved in:
Bibliographic Details
Main Author NARUSE YOSHIO
Format Patent
LanguageEnglish
Published 17.11.1998
Edition6
Subjects
ALLOYS
ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
BLASTING
CHEMISTRY
COMBUSTION ENGINES
CYLINDERS
CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES
ENGINEERING ELEMENTS AND UNITS
FERROUS OR NON-FERROUS ALLOYS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
METALLURGY
PISTONS
SEALINGS
THERMAL INSULATION IN GENERAL
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a combination of a cylinder and a piston ring combining a sliding characteristic and strength and easy to manufacture. SOLUTION: A piston ring 1 has a complex Cr plated film 2 on the outer peripheral surface. The compound Cr plated film 2 has silicon nitride grains dispersed in cracks formed in the film. The silicon nitride grains are 0.5-10 μm in average grain diameter, and the dispersed volume percentage is 4-11%. A cylinder liner 3 is formed of CV graphite cast iron. In the CV graphite cast iron, the modulation percentage of graphite is 25% or more, and the area percentage of ferrite is 10% or less.
Bibliography:Application Number: JP19970128082