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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsKenichi Nagahiro, Atsushi Ishida, Shigemasa Kajiwara
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A valve operating mechanism for an internal combustion engine having a pair of intake valves or exhaust valves in each cylinder with a first and a second rocker arm corresponding to the pair of valves and a cam for pivoting the first rocker arm. The rocker arms are provided with a connecting mechanism having a piston assembly which is movable between a position in which both said rocker arms are connected and a position in which both said rocker arms are disconnected from each other whereby either both valves of the pair or only one valve may be selectively actuated. A trigger member in the first rocker arm selectively restricts the movement of the piston and a timing cam engages and actuates the trigger member.
A valve operating mechanism for an internal combustion engine having camshaft, a pair of intake or exhaust valves for each engine cylinder and a rocker shaft, comprising, first and second rocker arms pivotally mounted on the rocker shaft in adjacent relationship and engaging said pair of valves, said first rocker arm engaging said camshaft, and piston means in said rocker arms selectively shiftable between positions connecting said rocker arms for pivotal movement in unison and disconnecting said rocker arms for independent movement, wherein said piston means includes two pistons slidably mounted in said first rocker arm with one piston slidable into said second rocker arm for connecting the first and second rocker arms.
A valve operating mechanism for an internal combustion engine having a pair of intake or exhaust valves for each engine cylinder, comprising, a camshaft having a valve cam and a timing cam thereon, a rocker arm shaft having first and second rocker arms pivotally mounted thereon in adjacent relationship and engaging said pair of valves, said first rocker arm engaging said valve cam, piston means in said rocker arms selectively shifting between positions connecting said rocker arms for pivotal movement in unison and disconnecting said rocker arms for independent movement, and trigger means for engaging and preventing said shifting of said piston means, said trigger means engaging said timing cam for releasing said trigger means from said engagement with said piston means.
A valve operating mechanism for an internal combustion engine having a pair of intake or exhaust valves for each engine cylinder, comprising, a camshaft having a valve cam and a timing cam thereon, a rocker arm shaft having first and second rocker arms mounted thereon in adjacent relationship and engaging said pair of valves, said first rocker arm engaging said valve cam, piston means in said rocker arms selectively shiftable between positions connecting said rocker arms for pivotal movement in unison and disconnecting said rocker arms for independent movement, trigger means for engaging and preventing said shifting of said piston means, said timing cam engaging said trigger means for releasing said trigger means from said engagement with said piston means only during a rocking movement of said first rocker arm, and means for causing said selective shiftable movement of said piston means only while said rocker arms are not rocking.
Dependencies are inferred from the claim text.