Patent ID: 6799543
Filing Date: 2004-10-05
Classification: F01L

Abstract:
A valve deactivation system, comprising:a deactivation rocker arm assembly including an elongate rocker arm, an aperture defined by said rocker arm, a center post slidingly disposed within said aperture, said center post configured for engaging a valve stem of a valve of an internal combustion engine, a locking pin assembly having an actuating pin member, a second pin member and a middle pin member selectively coupling together and decoupling said center post and said rocker arm; and a free motion spring assembly including: an inner spring retainer surrounding a portion of the valve stem; an outer spring retainer surrounding a portion of the valve stem; an inner spring surrounding a portion of the valve stem, said inner spring being disposed between a disk cap associated with the valve stem and said inner spring retainer; and an outer spring surrounding said inner spring, said outer spring being disposed between said outer spring retainer and the disk cap, wherein said rocker arm includes elongate arms, said arms being one of attached to and integral with a body of said rocker arm and extending therefrom, said arms engaging one of said inner spring retainer and said outer spring retainer.