INTEGRATED EGR VALVE AND COOLER

摘要

An exhaust gas recirculation (EGR) cooling system includes a valve (14) and a cooler (12). A motor (28) opens the valve allowing hot fluid exhaust gas to flow into the valve. Cooling fluid continuously flows in and circulated arou nd the valve (14), reducing the amount of heat transfer from the hot fluid to t he valve components. The hot fluid travels through a plurality of tubes (20) in the cooler, continuing to transfer heat to the cooling fluid. As the hot flu id is cooled, the unburned gas in the hot fluid is recycled to be burned by the engine.