Valve operating system for engine
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorMasaaki Yoshikawa
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Abstract
A valve operating mechanism for a high performance internal combustion engine including a flexible transmitter drive for the camshaft that includes a toothed belt. A timing retention sprocket is juxtaposed to one of the sprockets that is interengaged with the belt and which provides a positive drive therebetween in such a location as to prevent the teeth of the sprocket and belt from coming out of engagement.
Claims7
In a flexible transmitter drive for the camshaft of an internal combustion engine comprising a sprocket, a flexible transmitter engaged with said sprocket, said flexible transmitter and said sprocket having interengaging members for transmitting a positive drive therebetween, the improvement comprising a timing retaining member juxtaposed to said sprocket on the backside of said flexible transmitter and engaged therewith in a position to prevent the interengaging members of said sprocket and said flexible transmitter from moving out of engagement.
Dependencies are inferred from the claim text.