Patent ID: 6439177
Filing Date: 2002-08-27
Classification: F01L

Abstract:
A variable valve train device for cooperating with an input camshaft to vary the action of a cylinder valve in a head of an internal combustion engine, wherein said camshaft is provided with a valve-opening lobe and a valve-closing lobe, the device comprising:a command link partially surrounding said camshaft and rotatably supported on an outer surface of the command link for rotation about said camshaft; a bearing surface on the head for supporting said outer surface of the command link, wherein said command link and said bearing surface are cylindrically arcuate and the axis of said rotation is coincident with the rotation axis of said camshaft; a rocker assembly pivotably connected to said command link and supportive of a first follower for following said valve-opening lobe and a second follower for following said valve-closing lobe; a connecting link pivotably connected to said rocker assembly; and an output cam element pivotably connected to said connecting link and disposed against said camshaft, said output cam element being rotatable about said camshaft in response to motions of said first and second cam followers.