| 摘要 |
According to an embodiment of the present invention, a variable valve lift device comprises: a locker arm, which is arranged to be rotated by a cam in a locker arm shaft, having a mounting space on a lower side of one side; a valve, which is arranged on a lower part of the mounting space; and a variable valve unit, which is mounted on the locker arm, for varying an amount that the valve is lifted. The variable valve unit includes: a fixed member, which is inserted into a fixing hole formed on an upper end of one side of the locker arm, and where an upper end is fixed on the locker arm, and where a lower end is protruding toward the mounting space; the lower end of the fixed member is inserted into the mounting space formed in the upper end; a variable member, which is arranged to be moved up and down based on the fixed member, having a lock pin groove in an inner peripheral surface of the mounting space; and a lock pin, which is arranged by being inserted into the lock pin groove, for selectively varying a length for inserting the fixed member into the mounting space by protruding from the inner peripheral surface of the mounting space selectively according to fluid pressure provided for the mounting space. Therefore, an assembly can be facilitated and a complex structure of the variable valve unit and a rocker arm can be simplified since the variable valve unit for lifting the valve in a multi-stage is formed while a fixed member (a screw member) is screwed and locked. |
