Variable valve lift device for direct drive-style valve driving system, has tappet case in contact with cams that are driven rotationally due to internal combustion engine and reciprocally due to rotation of cam

摘要

The device (40) comprises a cylindrical tappet case (42) contacting a cam (41) arranged at a camshaft that is driven rotationally due to crankshaft and reciprocally due to the rotation of the cam. A sliding portion (45) arranged in the tappet case sways a swayer (44). Swayer has a sliding face that displaces a valve stem in an axial direction of the valve stem.