Continuous variable valve duration apparatus and engine provided with the same

A continuous variable valve duration apparatus comprising:

• a camshaft;
• first and second cam portions on which a cam is formed, respectively, the camshaft being inserted into the first and second cam portions of which relative phase angles with respect to the camshaft are variable;
• first and second inner brackets configured to transmit rotation of the camshaft to the first and second cam portions respectively;
• a slider housing unit in which the first and second inner brackets are rotatably inserted, a relative position of the slider housing unit with respect to the camshaft being variable;
• a control shaft parallel to the camshaft, and a control rod being eccentrically formed on the control shaft;
• a lifter on which a lifter hole to be rotatably connected with the control rod is formed and on which a rotation hole where the slider housing unit is rotatably inserted into is formed;
• and
• a control portion configured to selectively rotate the control shaft so as to control a position of the slider housing unit.