Patent ID: 9739183
Date: 2017-08-22
CPC Classifications: F01L

Claim:
1. A continuous variable valve duration system for an engine having a cylinder head, the system comprising: a camshaft; a cam portion having a cam formed thereto, the camshaft being inserted to the cam portion, wherein a relative phase angle with respect to the camshaft is variable, and wherein the cam portion further has a cam cap engaging portion formed thereto; an inner bracket transmitting rotation of the camshaft to the cam portion; a slider housing having the inner bracket rotatably inserted thereto, wherein the relative position of the slider housing with respect to the camshaft is variable, the slider housing having a control slot; cam caps rotatably mounting the cam cap engaging portion to the cylinder head; a control portion comprising an eccentric control shaft inserted into the control slot, a worm wheel connected to the eccentric control shaft, a worm gear engaged with the worm wheel, and a control motor selectively rotating the worm gear so as to change relative position of the slider housing with respect to the camshaft; and a cylinder head cover having a motor mounting portion where the control motor is mounted thereto.