The LDV gasoline emission regulation is set to be tightened for Euro7. In particular, the particulate number (PN) requirement has been significantly tightened requiring a GPF with extra - high filtration efficiency to meet the target requirement.In order to meet the stricter PN requirements, GPF substrate material improvement is necessary. However, conventional GPF material improvement for high filtration efficiency will increase the filter backpressure significantly. The relationship between pressure drop and CO2 emission is difficult to quantify but high pressure drop can potentially increase the CO2 emission. Therefore, Membrane Technology (MT) is the key to break through the trade-off between filtration performance and pressure drop. MT is thin and dense layer of small grains applied on the GPF surface. MT application can increase particulate filtration efficiency significantly with minimal pressure drop increase. To make MT work effectively, membrane conditions need to be optimized. In addition, the effect of each condition on GPF filtration performance needs to be verified.On the other hand, it is also important to maintain GPF filtration performance, membrane durability and robustness under all GPF operating conditions and Full Useful Life of the vehicle. In order to achieve the membrane durability and robustness, membrane grains need to be adhered to the GPF surface and GPF performance needs to be evaluated for all GPF operating conditions.This paper shows the results of membrane technology optimization for maximizing GPF performance, particulate filtration performance of GPF with MT, and the durability performance of MT.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Gasoline Particulate Filter with Membrane Technology to Achieve the Tight PN Requirement


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Obata, Shogo (Autor:in) / Aoki, Takashi (Autor:in) / Ohashi, Tatsuya (Autor:in) / Furuta, Yasuyuki (Autor:in)

    Kongress:

    WCX SAE World Congress Experience ; 2023



    Erscheinungsdatum :

    11.04.2023




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Gasoline Particulate Filter with Membrane Technology to Achieve the Tight PN Requirement

    Obata, Shogo / Furuta, Yasuyuki / Ohashi, Tatsuya et al. | British Library Conference Proceedings | 2023


    Gasoline requirement

    Engineering Index Backfile | 1930


    Gasoline Particulate Filter Wall Permeability Testing

    Lin, Chunxing / Medina, Humberto / Saul, Jonathan et al. | SAE Technical Papers | 2018


    Coated Gasoline Particulate Filter Technology Development to Meet China6 PN Regulation

    Chen, Jian / He, Suhao / Xia, Wenzheng et al. | British Library Conference Proceedings | 2020


    Coated Gasoline Particulate Filter Technology Development to Meet China6 PN Regulation

    zhao, Depeng / Yang, Dongxia / li, Gaojian et al. | SAE Technical Papers | 2020