TAPPET

PROBLEM TO BE SOLVED: To reduce a frictional coefficient in a sliding surface of a tappet used for an internal combustion engine, improve fuel consumption of the internal combustion engine, save sources, and suppress abrasion when the internal com bustion engine is operated so as to extend the life...

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Bibliographic Details
Main Authors BAN MASAHITO, MORI YUKITAKA, INUKAI TADASHI, RIYUUJI MAKOTO, KOTAI AKI
Format Patent
LanguageEnglish
Published 22.05.2001
Edition7
Subjects
BLASTING
CHEMICAL SURFACE TREATMENT
CHEMISTRY
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
COATING MATERIAL WITH METALLIC MATERIAL
COATING METALLIC MATERIAL
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
DIFFUSION TREATMENT OF METALLIC MATERIAL
ENGINE PLANTS IN GENERAL
HEATING
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
METALLURGY
STEAM ENGINES
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To reduce a frictional coefficient in a sliding surface of a tappet used for an internal combustion engine, improve fuel consumption of the internal combustion engine, save sources, and suppress abrasion when the internal com bustion engine is operated so as to extend the life of the tappet. SOLUTION: A diamond like carbon(DLC) covered layer 16 including silicon is formed on a slide surface 14 with a cam for opening and closing driving an intake/exhaust valves, or a side surface side sliding with a guide hole disposed on a cylinder head, by using an electron beam excitation plasma CVD device.
Bibliography:Application Number: JP19990323519