US Patent 7341030 Valve timing controller

A valve timing controller is provided with a first rotary element that rotates in response to the movement of a crankshaft, a second rotary element that rotates in response to the movement of a camshaft. A link mechanism changes a relative rotation phase between the first and second rotary elements. The first and second rotary elements include introduction passages that introduce a lubricating fluid in the first rotary element. In the link mechanism, shafts are fitted in the links. The links relatively rotate with respect to the shaft, and include conveying passages to communicate with the introduction passages and convey the lubricating fluid from the introduction passages to the circumference of the shaft.