Patent ID: 6047689
Filing Date: 2000-04-11
Classification: F02D,F02M

Abstract:
An internal combustion engine having multiple combustion chambers each having intake and exhaust valves for controlling intake and exhaust flows into and from the combustion chamber, an induction system to the intake valves, an exhaust system from the exhaust valves, and an EGR system for controlling recirculation of exhaust flow to the combustion chambers comprising an individual electric-actuated EGR valve associated with each respective combustion chamber for controlling the exhaust recirculation to the respective combustion chamber independent of the exhaust gas recirculated to any other combustion chamber, including an electric controller for controlling each EGR valve individually in relation to one or more input parameters to the electric controller, and in which the electric controller comprises maps of individual combustion chamber EGR requirements and controls the operation of each EGR valve through the respective map.