Patent ID: 7600498
Filing Date: 2009-10-13
Classification: F01L,F02B,Y10T

Abstract:
1. An internal combustion engine having selectively deactivated intake and/or exhaust valves and independently pivotable rocker arms each associated with one of the valves, each rocker arm having a pivot ball cup, the internal combustion engine comprising: a fulcrum plate having a through hole with an internal spline; a plunger disposed within the through hole and slidable between an activated position and a deactivated position, the plunger having a lower portion with an external spline that slidingly engages the internal spline of the through hole and a pivot ball cup at one end; and a latching mechanism associated with the plunger, the latching mechanism preventing sliding movement of the plunger into the through hole of the fulcrum plate when in an activated position, and allowing sliding movement of the plunger into the through hole of the fulcrum plate when in a deactivated position.