首页>
外国专利>
SYSTEMS AND METHODS FOR INCREASING ENGINE POWER OUTPUT UNDER GLOBALLY STOICHIOMETRIC OPERATION
SYSTEMS AND METHODS FOR INCREASING ENGINE POWER OUTPUT UNDER GLOBALLY STOICHIOMETRIC OPERATION
展开▼
机译:在全球化学计量操作下增加发动机功率输出的系统和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Methods and systems are provided for increasing engine power via partial engine enrichment and exhaust gas recirculation. In one example, a method may include enriching a first set of engine cylinders and enleaning a second, remaining set of the engine cylinders, exhaust gas from the first set and the second set producing a stoichiometric mixture at a downstream emission control device, and providing exhaust gas recirculation (EGR) to an intake passage of the engine from the first set of cylinders and not from the second set. In this way, cooling effects from the partial enrichment and the EGR enable engine air flow, and thus engine power, to be increased while an efficiency of the emission control device is maintained, thereby decreasing vehicle emissions.
展开▼