首页>
外国专利>
Internal combustion engine having dedicated cylinder(s) for generation of both EGR and exhaust aftertreatment reformate for three-way catalyst
Internal combustion engine having dedicated cylinder(s) for generation of both EGR and exhaust aftertreatment reformate for three-way catalyst
展开▼
机译:具有用于生成三元催化器的EGR和排气后处理重整产品的专用气缸的内燃机
展开▼
页面导航
摘要
著录项
相似文献
摘要
An exhaust gas recirculation (EGR) system for an internal combustion engine having dedicated EGR and operating at a net stoichiometric air-fuel ratio. In such engines, one or more cylinders is operable as a dedicated EGR cylinder, such that all of the exhaust produced by the dedicated EGR cylinder(s) may be directed back to the intake manifold. Because the engine's exhaust is net stoichiometric, its exhaust aftertreatment system has a three-way catalyst. An EGR loop is configured to recirculate EGR from the dedicated EGR cylinder(s) to the engine's intake manifold. A diversion line, modulated with a valve, connects the EGR loop to the exhaust aftertreatment system, thereby allowing adjustment of the relative amounts of EGR to be recirculated and to be provided to the exhaust system.
展开▼