VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To always keep a lubricated state of a planetary gear device while improving durability and a service life, and attain stable valve timing control. SOLUTION: The planetary gear device 7 arranged between a driving sprocket 1 and a camshaft 2 is composed of an input gear member 8...

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Bibliographic Details
Main Author IO SHINICHI
Format Patent
LanguageEnglish
Published 17.04.2001
Edition7
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
CRANKCASE VENTILATING
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
ENGINE PLANTS IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
LUBRICATING INTERNAL COMBUSTION ENGINES
LUBRICATING OF MACHINES OR ENGINES IN GENERAL
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To always keep a lubricated state of a planetary gear device while improving durability and a service life, and attain stable valve timing control. SOLUTION: The planetary gear device 7 arranged between a driving sprocket 1 and a camshaft 2 is composed of an input gear member 8 arranged on the camshaft 2 on an outer peripheral side of a stepped bearing 2A, an output gear member 9, a carrier 11, a planetary shaft 12 and planetary gears 13, 14. A spring clutch 17 is wound across a drum part of the input gear member 8, a ring drum 3 and a drum part 11E of the carrier 11. A phase is kept, retarded and advanced by fastening and releasing the spring clutch 17. Lubricating oil is supplied from an introduction passage 4 of the camshaft 2 to gears of the planetary gear device 7, keeping a lubricated state of sliding parts.
Bibliography:Application Number: JP19990286122