GRWA Diesel Particulate Filter (DPF) Types Overview

    In the realm of diesel vehicle modifications, Diesel Particulate Filters (DPFs) play an indispensable role. A DPF is a critical component in the exhaust system of diesel vehicles, serving not only as an emission solution but also as a way for tuning enthusiasts to ensure their vehicles meet environmental standards while maintaining optimal performance. It's a popular choice among those who seek both environmental responsibility and driving pleasure. DPFs can be classified in detail based on carrier material, internal design structure, regeneration method, and the corresponding emission standards they apply to.

By Material:

    1. Ceramic-based: The carrier material includes cordierite, silicon carbide, mullite, zirconia oxide, etc. Among them, cordierite and silicon carbide are the most commonly used filter body materials. This type of DPF has good thermal resistance and corrosion resistance, suitable for high temperature and harsh exhaust environments. (GWRA currently sells this custom honeycomb ceramic substrate DPF, with an additional catalytic converter model, welcome to inquire.)

    2. Metal-based: The carrier material includes sintered metal, foam metal, and metal wire mesh. It has a light weight and good thermal conductivity, but has relatively poor thermal resistance and corrosion resistance, and needs to be used with caution.

By Design Structure:
    1. Wall-flow type: Typically cylindrical in shape, this design forces exhaust gases through numerous small, parallel channels, capturing particulates through porous walls. Wall-flow DPFs are the most common type of DPF.
    2. Fluid-flow design: This design allows exhaust gases to flow directly through the structure rather than through a porous wall, offering a simpler structure but potentially lower particulate capture efficiency.

By Regeneration Method:

    1. Passive regeneration: Utilizes heat from the exhaust or chemical catalytic methods to reduce the reactivity of particulates, allowing them to burn off under normal diesel engine operation. It requires no external energy, is cost-effective, but its efficiency can be affected by exhaust temperature and chemical catalytic effects.    

    2. Active regeneration: Requires external energy but offers higher regeneration efficiency, suitable for diesel engines under high load and long-duration operation.

Applicable Emission Standards:
    EURO III: Typically C2 and C3 types are used, which balance cost and performance while meeting basic requirements.
    EURO IV: Upgraded to C4 and C5 types, with significantly improved filtration efficiency.
    EURO V and EURO VI: Further upgraded to C6, C7, C8, and C9 types, with higher performance and environmental requirements.
    (GRWA currently offers DPF models that comply with emission standards ranging from EURO II to EURO VI)

By Engine Type Classification：
    In-line engine: Typically, D1 and D2 types of DPF are selected, which are optimized for the engine characteristics.
    V-type engine: Tend to use D3 and D4 types, to adapt to its complex working environment.
    Boxer engine: Uses D5 and D6 types, with stable performance.

    In summary, different types of DPF have different characteristics and applicable scope, and they need to be considered comprehensively based on actual circumstances when choosing and using them to ensure that they meet your specific requirements. The GRWA brand DPF adopts precise design, stable performance, high filtration efficiency, and has passed the load test, with a three-year warranty and other personalized services. It can be customized according to demand and welcomes inquiries at any time!