To prevent occurrence of a wall wetting phenomenon in a DPF of an exhaust emission control device for a diesel engine, so as to enable an exhaust gas purification action to be continued for a long time.SOLUTION: An exhaust emission control device for a diesel engine has a configuration in which a diesel particulate filter (DPF) 10 is provided in an exhaust gas discharge passage of the diesel engine 7. A mesh-like rotating cylinder 48 rotated by a motor 49 and a brush 51 coming into sliding contact with the rotating cylinder 48 are provided in a DPF container 45 to which exhaust gas is introduced. Urea water is injected from an injector 52 toward the surface of the rotating cylinder 48.SELECTED DRAWING: Figure 7

    【課題】本発明では、ディーゼルエンジンの排気ガス浄化装置のDPFでウオールウェティング現象が生じ難くすることで、排気ガスの浄化作用を長時間持続可能にすることを課題とする。【解決手段】ディーゼルエンジン7の排気ガス排出経路にディーゼルパキュムレートフィルタ(DPF)10を設けた構成で、排気ガスを導入するDPF容器45内にモータ49で回転駆動するメッシュ状の回転筒48と該回転筒48に摺接するブラシ51を設け、回転筒48の表面に向けてインジェクター52から尿素水を噴射することを特徴とするディーゼルエンジンの排気ガス浄化装置とする。【選択図】図7


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    Title :

    EXHAUST EMISSION CONTROL DEVICE FOR DIESEL ENGINE


    Additional title:

    ディーゼルエンジンの排気ガス浄化装置


    Contributors:

    Publication date :

    2022-10-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / A01D Ernten , HARVESTING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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