Valve operating system for an automotive engine
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorSatoshi Maeda
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Abstract
A system is provided for an automotive engine comprising two intake valves for one cylinder, and a camshaft having cams for operating the intake valves. One of the cams is rotatably and axially slidably mounted on the camshaft. An eccentric conical hole is in a side of the cam and an eccentric conical portion is formed on the camshaft. A hydraulic cylinder is formed between the cam and the camshaft to form an oil chamber so as to shift the cam, and a spring is provided for urging the cam to the oil chamber. When the cam is shifted by the operation of the cylinder, the eccentric conical hole of the cam is engaged with the conical portion at a predetermined angular position.
Claims3
In a valve operating system for an automotive engine having two or more intake valves for one cylinder, a camshaft having cams for operating the intake valves, the system comprising:
- one of the cams being rotatably and axially slidably mounted on the camshaft;
- clutch means for engaging the slidable cam with the camshaft at a predetermined angular position;
- shifting means for axially shifting the slidable cam to engage the cam with the camshaft by the clutch means.
Dependencies are inferred from the claim text.