Patent ID: 7562645
Filing Date: 2009-07-21
Classification: F01L,Y10T

Abstract:
1. A camshaft phaser system for varying the phase relationship between a crankshaft and camshaft in an internal combustion engine, comprising: a) a first pinion gear mounted coaxially on said camshaft; b) a phaser drive sprocket supported for rotation about said camshaft and drivable by said crankshaft; c) a worm gear supported for rotation by said phaser drive sprocket and engaged with said first pinion gear for rotating said camshaft in a phase relationship with said crankshaft; d) a second pinion gear rotatable with said worm gear; e) a ring gear engaged with said second pinion gear; and f) a driver, wherein said driver is connected to said ring gear for driving rotation of said ring gear, and wherein movement of said driver causes said ring gear to be rotated relative to said first pinion gear, and wherein said rotation of said ring gear causes said second pinion gear, said worm gear, and said first pinion gear to be rotated with respect to said phaser drive sprocket to change said phase relationship between said camshaft and said crankshaft.