MAT MATERIAL AND EXHAUST EMISSION CONTROL DEVICE

To secure ease of winding around an exhaust gas treatment body and suppress deformation during insertion into a casing even when a mat material has through holes formed therein.SOLUTION: A mat material 10A comprises at least an inorganic fiber, and the mat material 10A includes through holes 14a pen...

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Bibliographische Detailangaben
Hauptverfasser:	KOGO YUTA, WATANABE TATSUYA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	To secure ease of winding around an exhaust gas treatment body and suppress deformation during insertion into a casing even when a mat material has through holes formed therein.SOLUTION: A mat material 10A comprises at least an inorganic fiber, and the mat material 10A includes through holes 14a penetrating in a thickness direction T1. In plan view, the mat material 10A includes: normal regions 16; and reinforcement regions 15a each formed continuously from at least part of a peripheral edge 14a1 of the through hole 14a over at least part of an outer edge 18 of the mat material 10A and having strength higher than that of the normal region 16.SELECTED DRAWING: Figure 1 【課題】貫通孔が形成されたマット材であっても、排ガス処理体への巻き付けの容易性を確保するとともに、ケーシングに挿入する際の変形を抑制する。【解決手段】少なくとも無機繊維によって構成されたマット材１０Ａであり、マット材１０Ａは厚さ方向Ｔ１に貫通する貫通孔１４ａを有するとともに、マット材１０Ａは平面視において、通常領域１６と、貫通孔１４ａの周縁１４ａ１の少なくとも一部からマット材１０Ａの外縁１８の少なくとも一部に渡って連続的に形成され、かつ、通常領域１６より強度の高い補強領域１５ａとを含む。【選択図】図１