MIXER DEVICE

To provide a mixer device for an exhaust gas device of an internal combustion engine, which reduces the risk of causing accumulation of a reactant and has improved mixing characteristics with respect to the injected reactant.SOLUTION: A reactant feeding opening is formed in a bottom element 12 and i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MATHIAS ROTHFUSS, MICHAEL DENTLER, VINCENT EDER, PETER KAST
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a mixer device for an exhaust gas device of an internal combustion engine, which reduces the risk of causing accumulation of a reactant and has improved mixing characteristics with respect to the injected reactant.SOLUTION: A reactant feeding opening is formed in a bottom element 12 and is opened to a reactant receiving volume 46 that starts from the reactant feeding opening at a front surface 44 of the bottom element and expands radially in the direction of an opening axis A. A plurality of exhaust gas circulation passages 58 are provided in the bottom element, which are arranged in the circumferential direction about the opening axis and are opened to the reactant receiving volume. A mixer device includes a rotational motion generating element 20 that is coupled to the bottom element and annularly surrounds the opening axis. A mixing volume 64 continuing to the reactant receiving volume in the direction of the opening axis is formed in the rotational motion generating element, and a plurality of exhaust gas circulation openings 66, which continue to each other in the circumferential direction about the opening axis, are provided in the rotational motion generating element.SELECTED DRAWING: Figure 3 【課題】反応剤の堆積が生じる危険性を低減させ、噴射された反応剤に対する改善された混合特性を有する内燃機関の排ガス装置用の混合器装置を提供する。【解決手段】底部要素12内に形成された反応剤送入開口は、底部要素の前面44で反応剤送入開口から始まり、開口軸線Aの方向において半径方向に拡張する反応剤受容体積体46に対して開放されて、底部要素内には、開口軸線を中心とした円周方向において配置されて、かつ反応剤受容体積体に対して開放されている複数の排ガス通流通路58が設けられて、底部要素と結合されている、開口軸線を環状に包囲している回転運動生成要素20を含み、回転運動生成要素内には、開口軸線の方向において、反応剤受容体積体に続く混合体積体64が形成されて、回転運動生成要素内には、開口軸線を中心とした円周方向において相互に続く複数の排ガス通流開口66が設けられている。【選択図】図3