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    • 5. 发明专利
    • Valve operating system for an internal combustion engine
    • JP5142804B2
    • 2013-02-13
    • JP2008115177
    • 2008-04-25
    • 本田技研工業株式会社
    • 壮二 鹿島
    • F01L13/08F01L1/04
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide a valve gear of an internal combustion engine which can be compactly structured in spite of arrangement of a driven timing rotation member and an exhaust cam. SOLUTION: The valve gear of the internal combustion engine is provided with a decompression cam member 47, supported by a camshaft 26, for operating an exhaust valve working member 29e in an opening direction of an exhaust valve 17e in a compression stroke on starting an engine, an exhaust gas recirculation cam member 48, supported by the camshaft 26, for operating the exhaust valve working member 29e in the opening direction of the exhaust valve 17e in an intake stroke during high speed operation of the engine and a centrifugal mechanism 46, attached to the driven timing rotation member 32 integrally rotating with a valve gear cam 25 for operating the decompression cam member 47 and the exhaust gas recirculation cam member 48. The valve gear cam 25 is provided with a recessed part 39 for surrounding the camshaft 26 and having openings in other side surfaces of the driven timing rotation member 32 and a base surface of the valve gear cam 25 and the decompression cam member 47 and the exhaust gas recirculation cam member 48 are stored in the recessed part 39. COPYRIGHT: (C)2010,JPO&INPIT