RETAINER APPLIED WITH DLC

PROBLEM TO BE SOLVED: To improve the durability of an engine by preventing the wear of a retainer for retaining an automobile fuel valve or an automobile exhaust valve to the face of a coil spring. SOLUTION: In the retainer for retaining an automobile fuel valve or an automobile exhaust valve to the...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHINO RYOKO, HASHIMOTO YASUSHI, NAKAYAMA MASATOSHI, OTAKA MASAICHI, MIYAUCHI IZUMI, MATSUBA YASUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve the durability of an engine by preventing the wear of a retainer for retaining an automobile fuel valve or an automobile exhaust valve to the face of a coil spring. SOLUTION: In the retainer for retaining an automobile fuel valve or an automobile exhaust valve to the face of a coil spring, the face abutting on the spring of the retainer, a diamondlike carbon film containing H or a diamondlike carbon film containing H, Si and O is formed directly, or via; (a) an intermediate layer of silicide or silicocarbide essentially consisting of at least one kind selected from the group 5A metals (V, Nb, Ta), the group 6A metals (Cr, Mo, W), Ti and Zr; or (b) a metallic film essentially consisting of at least one kind selected from the group 5A metals (V, Nb, Ta), and an Si film or a metallic film essentially consisting of Si, and formed thereon; or (c) a metallic film of at least one kind selected from the group 5A metals (V, Nb, Ta), the group 6A metals (Cr, Mo, W), Ti and Zr, and a silicon, carbide film formed thereon.