Patent ID: 6314928
Filing Date: 2001-11-13
Classification: F01L,Y10T

Abstract:
An engine rocker arm assembly comprising:a body engagable adjacent a first end with valve stem for activation thereof, said body being engagable with a pivot fulcrum adjacent an end opposite said first end;a lost motion arm pivotally connected to one of said ends of said body, said lost motion arm being spring biased into engagement with a cam lobe, said lost motion arm having first and second contact surfaces;a latch connected on an end of said body generally opposite said pivotal connection of said lost motion arm with said body, said latch including an extendable plunger with first and second contact surfaces, said plunger having a first position for said plunger first contact surface engagement with said lost motion arm first contact surface to prevent angular movement of said lost motion arm with respect to said body in a first given angular direction to thereby transmit movement of said lost motion arm by said cam to said body for a first state of activation of said valve stem, and said plunger having a second position non-contacting with said lost motion arm to allow said lost motion arm to pivot relative to said body to activate said valve stem in a second state of deactivation of said valve stem and wherein said plunger second contact surface having contact with said lost motion arm second contact surface to cause said plunger to be cammed out of said first position when said plunger is in said first position and wherein said plunger first contact surface is not engaged with said lost motion arm first contact surface.