Dedicated egr engine with dynamic load control

An internal combustion engine comprising:

• a first engine bank defining a first combustion chamber with a first intake port for providing a first flow of combustion air to the first combustion chamber and with a first exhaust port for providing a first flow of combustion products from the first combustion chamber;
• a second engine bank defining a second combustion chamber with a second intake port for providing a second flow of combustion air to the second combustion chamber and with a second exhaust port for providing a second flow of combustion products from the second combustion chamber;
• a first intake valve disposed in the first intake port, the first intake valve being configured for metering the first flow of combustion air by periodically opening and closing according to a first intake valve lift and duration characteristic;
• a second intake valve disposed in the second intake port, the second intake valve being configured for metering the second flow of combustion air by periodically opening and closing according to a second intake valve lift and duration characteristic;
• an intake manifold defining an intake plenum, the intake manifold also defining an air inlet, a first intake runner, a second intake runner, and an EGR duct, each being in fluid communication with the intake plenum;
• the air inlet being in fluid communication with a supply of ambient air and configured for carrying the supply of ambient air for delivery to the intake plenum;
• the first intake runner being in fluid communication with the first intake port and configured for carrying the first flow of combustion air from the intake plenum to the first intake port;
• the second intake runner being in fluid communication with the second intake port and configured for carrying the second flow of combustion air from the intake plenum to the second intake port;
• the EGR duct being in fluid communication with the first exhaust port and being configured for carrying the first flow of combustion products from the first exhaust port to the intake plenum, wherein the EGR duct includes an EGR splitter forming a boost leg and a direct return leg, the boost leg being fluidically connected to an inlet of a supercharger and the direct return leg being in fluid communication with the intake plenum;
• and
• an EGR return flow control valve disposed in the EGR duct upstream of the EGR splitter, the EGR return flow control valve being configured for allowing at least a portion of the first flow of combustion products to be delivered directly to the intake plenum when the EGR return flow control valve is in an open mode and to impede the first flow of combustion products directly to the intake plenum when the EGR return flow control valve is in a closed mode.