DIESEL ENGINE SYSTEM AND CONTROL METHOD FOR A DIESEL ENGINE SYSTEM

摘要

A diesel engine system includes a cylinder, an exhaust manifold (206), an exhaust gas recirculation (EGR) manifold (220), and a valve (224). The exhaust manifold is fluidly coupled with the cylinder and directs exhaust generated in the cylinder to an exhaust outlet (208) that delivers the exhaust to an external atmosphere. The EGR manifold is fluidly coupled with the cylinder and recirculates the exhaust generated in the cylinder back to the cylinder as at least part of intake air that is received by the cylinder. The valve is disposed between the cylinder and the exhaust manifold and between the cylinder and the EGR manifold. The valve has a donating mode and a non- donating mode. The valve fluidly couples the cylinder with the EGR manifold when the valve is in the donating mode and fluidly couples the cylinder with the exhaust manifold when the valve is in the non-donating mode.