POWERTRAIN SYSTEMS Delphi Electronic Diesel Exhaust Gas Recirculation Valves Delphi Electronic Diesel Exhaust Gas Recirculation (EGR) Valves recirculate metered amounts of exhaust gas into the engine’s intake system to help limit the formation of nitrogen oxide (NOx) emissions. Delphi offers a family of diesel EGR valves based on a proven electronically actuated diesel exhaust gas recirculation valve technology. Delphi Electronic Diesel Exhaust Gas Recirculation Valves are available with single poppet, dual poppet and butterfly valve designs to help meet all ranges of flow requirement for diesel engines. They are available with torque motor or direct current (DC) motor actuators to help meet individual customer requirements for force, response, cost and leak. Benefits Robust valve design provides carbon resistance, durability and long life, high quality and engine control module controllability. High opening and closing force actuators minimize impact of corrosion and help provide high quality, durability and long life. They have ECMcompatible drivers. Delphi offers a range of actuators to meet customer application requirements. Fast valve opening and closing response time enhances engine control module controllability and helps lower emissions as a result of the reduction in exhaust gas lag time. Stainless steel valves and components provide robust performance and resistance to corrosion, high temperatures and wear. Modular valves offer design flexibility to meet a full range of customer requirements. Delphi Single Poppet Rotary EGR Valve with Torque Motor Typical Applications Delphi Electronic Diesel Exhaust Gas Recirculation Valves are designed for diesel engine programs targeted to meet future exhaust emissions requirements in Europe, North America and Asia. They are designed for both highway and off-highway applications. Delphi Dual Poppet Rotary EGR Valve with Torque Motor Performance Advantages Delphi Electronic Diesel Exhaust Gas Recirculation Valves feature a robust design that helps inhibit carbon contamination (coking) and Delphi High Flow Butterfly EGR Valve with Torque Motor www.delphi.com | © Delphi. All rights reserved. |

Delphi Electronic Diesel Exhaust Gas Recirculation Valves condensation corrosion by sulfuric acid, which can adversely affect shaft operation. Their high opening and closing force also helps minimize the impact of carbon contamination. Fast opening and closing response time helps manufacturers meet controllability requirements, while low internal and external leak performance helps minimize exhaust emissions and enables precise engine calibration, all in an efficient and cost-effective package. Delphi recognizes that one of the most effective ways to reduce NOx output in a diesel engine is to...