Patent ID: 6883478
Filing Date: 2005-04-26
Classification: F01L,Y10T

Abstract:
1. A locking pin mechanism for rotationally locking the rotor of a camshaft phaser to a stator thereof, the stator being fixedly mounted on a camshaft pulley/sprocket, comprising: a) a locking pin slidably disposed in a bore of said rotor and extendable toward said pulley/sprocket, said locking pin having an end portion and a surface area of an axial face of said end portion; b) a pin return spring for urging said pin toward said pulley/sprocket; c) a well formed in said pulley/sprocket for receiving said end portion of said locking pin when urged therein by said spring, said well including a bottom surface; d) a pad disposed on said bottom surface of said well for partially covering said axial face when said pin is extended into said well by a predetermined distance; and e) a channel extending into said well and defining an uncovered portion of said axial face.