Direct exhaust gas recirculation system

An exhaust gas recirculation (EGR) system for an internal combustion engine comprising:

• (a) a plurality of combustion chambers divided into a first portion of combustion chambers and a second portion of combustion chambers, each of the first portion of combustion chambers having first and second exhaust valves, and each of the second portion of combustion chambers having third and fourth exhaust valves;
• (b) at least one intake valve associated with each combustion chamber;
• (c) at least one intake manifold in fluid communication with said plurality of combustion chambers through respective intake valves;
• (d) a first exhaust manifold in fluid communication with each combustion chamber of said first portion of combustion chambers through said first and second exhaust valves for receiving exhaust gases;
• (e) a second exhaust manifold in fluid communication with each combustion chamber of said second portion of combustion chambers through said third exhaust valve for receiving exhaust gases;
• (f) an EGR manifold in fluid communication with each combustion chamber of said second portion of combustion chambers through said fourth exhaust valve for receiving exhaust gases and in fluid communication for supplying exhaust gases with said at least one intake manifold for supplying exhaust gases.

An exhaust gas recirculation (EGR) system for an internal combustion engine, said internal combustion engine containing a first plurality of combustion chambers and a second plurality of combustion chambers, each of the first plurality of combustion chambers having first and second exhaust valves associated with said first plurality of combustion chambers, and each of the second plurality of combustion chambers having third and fourth exhaust valves associated with said second plurality of combustion chambers;

• said exhaust gas recirculation system comprising:
• an intake valve associated with each combustion chamber of said first and second plurality of combustion chambers;
• an intake manifold in fluid communication with each combustion chamber of said first and second plurality of combustion chambers through respective intake valves;
• a first exhaust manifold;
• a first exhaust port associated with each first exhaust valve of the first plurality of combustion chambers;
• a second exhaust port associated with each second exhaust valve of the first plurality of combustion chambers, respective first and second exhaust ports connecting said first exhaust manifold to respective combustion chambers of said first plurality of combustion chambers;
• a third exhaust port associated with each third exhaust valve of the second plurality of combustion chambers;
• a fourth exhaust port associated with each fourth exhaust valve of the second plurality of combustion chambers;
• a second exhaust manifold connected to each combustion chamber in said second plurality of combustion chambers through said third exhaust port;
• and
• an EGR manifold connected to each combustion chamber in said second plurality of combustion chambers through said fourth exhaust port, said EGR manifold in fluid communication with said intake manifold for supplying exhaust gases.