CAST-IN-HEAD EGR CROSSOVER TUBE WITH INTEGRAL VENTURI TUBE FOR FLOW MEASUREMENTS

There is disclosed an engine, comprising a cylinder head, a differential pressure sensor and a controller. The cylinder head defines an exhaust gas recirculation crossover tube integrally formed in the cylinder head. The exhaust gas recirculation crossover tube comprises a Venturi tube configuration. The differential pressure sensor is operatively coupled to the Venturi tube configuration. The controller is operatively coupled to the differential pressure sensor. The controller comprises an exhaust gas recirculation flow rate circuit structured to receive differential pressure measurement values from the differential pressure sensor, interpret the differential pressure measurement values, and determine a flow rate of exhaust gas through the exhaust gas recirculation crossover tube directly from the interpreted pressure measurement values received from the differential pressure sensor.