Patent ID: 8443602
Filing Date: 2013-05-21
Classification: F01N,F02B,Y02T

Abstract:
1. An exhaust aftertreatment system for an internal combustion engine, comprising: an exhaust manifold that is configured for fluid communication with an exhaust port of an internal combustion engine to receive an exhaust gas flow therefrom; a primary turbocharger comprising a primary turbine having a primary turbine exhaust inlet that is configured for fluid communication with the exhaust manifold of the engine to receive a primary turbine exhaust gas flow therefrom and to pass this flow to a primary turbine exhaust outlet; an exhaust bypass valve that is operable for movement between an open position and a closed position, the exhaust bypass valve having an exhaust bypass valve inlet that is configured for fluid communication with the exhaust manifold in the open position to receive a bypass exhaust gas flow therefrom and pass this flow to an exhaust bypass valve outlet; and an exhaust aftertreatment device disposed in a housing that is attached to and configured for thermal communication with the exhaust manifold, the device having a device inlet, the device inlet configured for fluid communication with the primary turbine exhaust outlet to receive the primary turbine exhaust gas flow therefrom and for fluid communication with the exhaust bypass valve outlet to receive the bypass exhaust gas flow therefrom when the exhaust bypass valve is in the open position, and a device outlet.