Patent ID: 6481400
Filing Date: 2002-11-19
Classification: F01L

Abstract:
A valve deactivation assembly for use in an internal combustion engine, said valve deactivation assembly comprising:an elongate camshaft, including: at least one lift lobe having a lift portion and a base circle portion, said at least one lift lobe being one of affixed to and integral with said camshaft; a first null lobe disposed on a first side of each said at least one lift lobe, said first null lobe being one of affixed to and integral with said camshaft; a second null lobe disposed on a second side of each said at least one lift lobe, said second null lobe being one of affixed to and integral with said camshaft; a first journal bearing disposed on said first null lobe; a second journal bearing disposed on said second null lobe; and at least one roller finger follower, each said at least one roller finger follower being associated with a corresponding one of said at least one lift lobe, each said at least one roller finger follower having a respective body, said first and second journal bearings engaging a respective surface of said body.