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    • 8. 发明公开
    • Honeycomb heater
    • Honigwabenheizgerät。
    • EP0661097A1
    • 1995-07-05
    • EP94309321.1
    • 1994-12-14
    • NGK INSULATORS, LTD.
    • Abe, FumioHashimoto, ShigharuKondo, Tomoharu
    • B01J35/04F01N3/20
    • H05B3/10B01J35/0033B01J35/04F01N3/2026F01N3/281F01N3/2814F01N3/2817F01N3/2821F01N2330/34H05B3/141H05B2203/024Y02T10/26
    • A honeycomb heater comprising a honeycomb structure (1) which is made of a conductive material and which has a number of passages substantially parallel to a gas flow direction partitioned by partition walls and which has end surfaces on a gas inlet side and a gas outlet side as well as an outer periphery, and at least two electrodes (5) for electrification provided on the honeycomb structure, said honeycomb heater being characterized in that a plurality of slits (10,11) extend in a direction of the passages between the electrodes of the honeycomb structure so that a current flow path may be prolonged, whereby resistance is adjusted, and one or more of a slit forming position, a slit length and a space between each pair of slits are adjusted so that a specific region of the honeycomb heater may be locally heated more quickly as compared with the other region at the time of the electrification. According to the present invention, harmful substances in an exhaust gas discharged from an internal combustion engine, particularly HC generated in large quantities at the time of a cold start can be effectively purified with a low electric power.
    • 一种蜂窝式加热器,包括蜂窝结构体(1),所述蜂窝结构体(1)由导电材料制成,并且所述蜂窝结构体(1)具有基本上平行于由分隔壁隔开的气体流动方向的通道,并且所述蜂窝结构体(1)具有气体入口侧和气体出口侧 以及至少两个用于带电的电极(5),设置在所述蜂窝结构体上,所述蜂窝式加热器的特征在于,多个狭缝(10,11)在所述蜂窝结构体的电极之间的通路的方向上延伸, 该蜂窝结构体可以延长电流流动路径,从而调节电阻,并且调节狭缝形成位置,狭缝长度和每对狭缝之间的空间中的一个或多个,使得蜂窝加热器的特定区域 与电气化时的其他区域相比,可能会局部加热。 根据本发明,可以以低电力有效地净化从内燃机排出的排气中的有害物质,特别是在冷启动时大量产生的HC。