Eaton and Tenneco announced a joint development agreement between Eaton Automotive Group and Tenneco Clean Air Business Group to produce an integrated exhaust thermal management system designed to enable commercial truck and light vehicle manufacturers to meet upcoming Coming emission regulations.
Dmitri Konson, vice president of global engineering for Tenneco’s clean air business, said: “Tenneco is a recognized leader in the design and development of post-processing solutions.” “We are delighted to work with Eaton to leverage our post-processing technology and engineering capabilities. Develop a fully optimized system for engine manufacturers.”
Schematic diagram of the integrated exhaust thermal management system to be developed by Eaton and Tenneco
In Europe, the Euro 7 heavy emission standard is planned to be introduced in 2025, while the California Air Resources Board (CARB) and the U.S. Environmental Protection Agency (EPA) plan to take similar actions in 2024 and 2027, respectively. Overall, the new regulations aim to reduce exhaust NOx limits by 90% and require global engine manufacturers to adopt other emission reduction strategies.
According to the terms of the agreement, Tenneco’s Cold Start Thermal Unit (CSTU) will be combined with Eaton’s TVS blower technology to directly transfer heat to the vehicle’s aftertreatment system to lighten the catalyst earlier under cold start conditions. When the SCR catalyst is heated to approximately 392 to 482ºF (200 to 250ºC), the aftertreatment system can effectively convert NOx into nitrogen and water. Eaton’s electric TVS Roots blower is carefully designed to precisely control the airflow so that the CSTU can maintain the best post-processing temperature.
Eaton TVS blowers will be used in conjunction with Tenneco’s Cold Start Thermal Unit (CSTU) to promote early ignition of the catalyst under cold engine start conditions.
Nick Morley, Global Senior Engineering Director of Tenneco’s Clean Air Business Unit, said: “CSTU is an active thermal management technology that can quickly heat up and maintain the temperature of the emission control system.” “Due to most of the emissions. The substances are produced during the initial engine start and extended idling conditions, so adding an integrated exhaust thermal management system before the catalyst can achieve rapid light-off and effective NOx conversion throughout the operating range. Conditions.”
“About three years ago, it was obvious that the future CARB and EPA NOx regulations will be much stricter than today. The exhaust thermal management system is an effective technology to effectively heat the aftertreatment system of commercial vehicle diesel engines to significantly reduce the cooling capacity.-Start NOx emissions.” Eaton Automotive Group Technology Development Manager Justin Hopkins (Justin Hopkins) said.
Eaton said that the integrated exhaust thermal management system has attracted the attention of many global manufacturers. TTUCO and Eaton will sell CSTU and TVS blowers, respectively, but design them as a system that enables vehicle manufacturers to seamlessly integrate these components.
Development activities will take place at the Tenneco Technology Center in Edenkoben, Germany, and the Eaton Technology Center in Marshall, Michigan. The integrated exhaust thermal management system is expected to be put into production in 2025 to support regulatory timing
