Continuous variable valve duration apparatus and engine provided with the same

摘要

A continuous variable valve duration apparatus includes a camshaft. A slider, which is mounted to the camshaft, has a camshaft sliding key and a cam portion of which a cam and a cam sliding key are formed thereto. The camshaft is inserted into the cam portion, and a relative phase between the cam and the camshaft is variable. A roller ring is connected with the camshaft sliding key and the cam sliding key. The roller ring is rotatably inserted into a roller ring guider, and the roller ring guider slidably inserted into a cylinder head. A control portion selectively changes a position of the roller ring guider to control a rotation center position of the roller ring.

主权项

1. A continuous variable valve duration apparatus comprising:
a camshaft; a slider mounted to the camshaft and having a camshaft sliding key; a cam portion having a cam and a cam sliding key, into which the camshaft is inserted, and having a variable relative phase between the cam and the camshaft; a roller ring connected with the camshaft sliding key and the cam sliding key; a roller ring guider into which the roller ring is rotatably inserted, the roller ring guider being slidably inserted into a cylinder head; and a control portion selectively changing a position of the roller ring guider to control a rotation center position of the roller ring.