Invention Grant
US08381518B2 Engine exhaust system having filter before turbocharger 有权
在涡轮增压器之前具有过滤器的发动机排气系统

Engine exhaust system having filter before turbocharger
Abstract:
An engine system for a combustion engine that has an intake manifold and an exhaust manifold has a turbine having a turbine inlet for receiving exhaust gas and a turbine outlet for discharging exhaust gas, and a diesel particulate filter (DPF) having a DPF inlet in flow-communication with the exhaust manifold and a DPF outlet in flow-communication with the turbine inlet. The exhaust at the exhaust manifold has a sufficiently high temperature to maintain passive regeneration of the DPF during normal operating conditions. If the engine system includes an exhaust gas recirculation (EGR) system, the EGR inlet is in flow-communication with the DPF outlet, and an EGR outlet is in flow-communication with the intake manifold. High pressure, high temperature, filtered EGR gas is available for EGR recirculation.
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