Patent ID: 6321705
Filing Date: 2001-11-27
Classification: F01L

Abstract:
An internal combustion engine, comprisinga deactivation roller finger follower, said deactivation roller finger follower comprising:a body having a first end configured for engaging a valve stem of the internal combustion engine, a socket disposed on said body and being configured for engaging a hydraulic lash adjuster of the internal combustion engine, said body defining a roller aperture intermediate said first end and said socket, said body defining a first pin orifice and a second pin orifice, said first pin orifice being disposed on a first side of said body adjacent said roller aperture, said second pin orifice being disposed on a second side of said body adjacent said roller aperture, said first pin orifice being transversely opposite from said second pin orifice;a roller disposed within said roller aperture of said body, said roller defining a roller orifice therethrough;an elongate shaft disposed within and extending transversely through said roller orifice, said shaft defining a shaft bore therethrough, said shaft having a first end disposed proximate said first pin orifice and a second end disposed proximate said second pin orifice, said shaft bore being normally aligned with each of said first pin orifice and said second pin orifice; anda deactivation pin assembly having at least one elongate pin member, each of said at least one elongate pin member being disposed within at least one of said first pin orifice, said second pin orifice and said shaft bore, said deactivation pin assembly coupling said shaft to said body when said deactivation pin assembly is in a default position to thereby transfer rotary motion of the cam to pivotal movement of said body about the hydraulic lash adjuster, said deactivation pin assembly configured for being selectively removed from said default position into a decoupled position wherein said shaft is decoupled from said body such that the rotary motion of the cam is not transferred to pivotal movement of said body.