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首页> 外文期刊>Fortschritt-Berichte VDI, Reihe 12. Verkehrstechnik-Fahrzeugtechnik >Diesel Particulate Filters - Field Experiences with Current Systems and Factors that will define Future Designs
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Diesel Particulate Filters - Field Experiences with Current Systems and Factors that will define Future Designs

机译：柴油微粒过滤器 - 现场经验与当前系统和因素定义未来设计的因素

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摘要

During the late 1990?s, a coalescence of technology in fuel systems, substrate materials and catalytic coatings created an opportunity to create robust, diesel particulate aftertreatment systems for light-duty diesel engines. Numerous research studies had highlighted multiple, alternative concepts for implementing particulate aftertreatment, but no volume production applications existed to serve as a selection guide. This situation provided development engineers with a double challenge, selection of a technical strategy and development of a new product without a set of historically defined requirements. The strategy selected for General Motors products in Europe was to use a coated, wall-flow ceramic filter mounted underfloor along with an oxidation catalyst system. Regeneration is controlled by unique operation of the common rail fuel system. Package constrained system configurations have been developed to cover a wide range of vehicle applications with over 160 000 units produced since the first production applications in early 2004 through the end of 2005. The field experiences have validated that a successful technical strategy was selected. With the learnings from the current production particulate aftertreatment systems, recent materials developments, and the ability to integrate new configurations simultaneously with new vehicle architectures, evolutionary system designs are possible that have lower cost, are smaller, but retain the robustness necessary for "for life" solutions.
机译：在1990年代后期，燃料系统中技术的聚结，底物材料和催化涂料产生了一种为轻型柴油发动机产生鲁棒的柴油颗粒后处理系统的机会。许多研究研究突出了用于实施微粒后处理的多种替代概念，但不存在卷产生应用用作选择指导。这种情况为开发工程师提供了双重挑战，选择技术战略和新产品的开发，而无需一系列历史上定义的要求。为欧洲通用汽车产品选择的策略是使用涂覆的壁流式陶瓷过滤器，该陶瓷过滤器与氧化催化剂体系一起安装。通过公共轨道燃料系统的独特操作来控制再生。已经开发了组织约束系统配置，以涵盖各种车辆应用，以来，自2004年底在2005年底之前生产的超过160 000个单位。现场经验已经验证了选择成功的技术策略。随着目前生产微粒后处理系统的学习，最近的材料开发，以及与新的汽车架构同时集成新配置的能力，进化系统设计具有较低的成本，较小，但保留了“终身”所需的稳健性“解决方案。

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