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Alternative left/right bank EGR loop operation to improve fouling resistance during low mass flow engine mode
Alternative left/right bank EGR loop operation to improve fouling resistance during low mass flow engine mode
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机译:可选的左/右排EGR回路操作,以提高低质量流量发动机模式下的耐污垢性
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摘要
A system for a vehicle, comprising of a diesel engine having an intake system and an exhaust system, a first EGR loop coupled between said intake system and said exhaust system and having a first valve and a first cooler located therein, a second EGR loop coupled between said intake system and said exhaust system and having a second valve and a second cooler located therein, and a control system operating the first and second valves in a first condition where both valves provide EGR flow to the engine, and at least temporarily increasing flow in the first EGR loop and decreasing flow in the second EGR loop when EGR flow is decreased to a condition where buildup in one of said coolers is increased.
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