Patent ID: 7819097
Filing Date: 2010-10-26
Classification: F01L

Abstract:
1. A poppet valve operating system for an internal combustion engine, comprising: a camshaft; a variable valve lift control system driven by said camshaft and having an angular control input; a camshaft phaser driving said camshaft and having an angular control input; and a controller for providing angular position control for said variable valve lift control system and for said camshaft phaser, wherein said phaser has a planetary drive comprising: a sun gear driven by the engine's crankshaft; a plurality of planet gears driven by said sun gear, with said plurality of planet gears being mounted rotatably upon a carrier having an angular position which is determinative of the camshaft's timing; and a ring gear driven by said planet gears, with said ring gear being rotatably locked to said camshaft.