| 摘要 |
A variable valve system is provided to make a variable cam inserted into or protruded out of a cam shaft, thereby simplifying the structure of the variable valve system compactly. A variable valve system includes a cam shaft(200) rotating by a crank shaft, a variable cam(205) mounted to the cam shaft, and a hydraulic control part for moving the variable cam from the center of the rotation of the cam shaft to the outer peripheral surface of the cam shaft by hydraulic pressure. |
