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    • 2. 发明授权
    • Process and an apparatus for determining pressure losses of exhaust gas
purification honeycomb structural bodies, by presumption, at respective
points of time when honeycomb structural bodies are to be regenerated
    • 废气净化蜂窝结构体压力损失的方法和装置,通过推定在蜂窝结构体再生时的各个时间点
    • US5398541A
    • 1995-03-21
    • US033555
    • 1993-03-18
    • Toshihiko HijikataSatoru Yamada
    • Toshihiko HijikataSatoru Yamada
    • B01J35/04B01D46/00B01D46/42F01N3/023F02B3/06G01M3/26G01N15/08
    • B01D46/0063B01D46/2418B01D46/446F01N3/023G01M3/26F01N2550/04F02B3/06
    • A process is disclosed for determining a pressure loss of exhaust gas purification honeycomb structural bodies to be inspected, at a point of time when the honeycomb structural body is to be regenerated, said honeycomb structural body having a number of through holes alternatively sealed at opposite end faces, comprising the steps of: (1) flowing particles through each of exhaust gas purification honeycomb structural bodies of a given type in an axial direction of the through holes thereof, (2) determining a relationship between the pressure loss of the exhaust gas purification honeycomb structural body at a point of time when the honeycomb structural body catches a given amount of the particles and the pressure loss of the honeycomb structural body at a point of time when the honeycomb structural body catches the particles in such an amount suitable for the regeneration, (3) then measuring the pressure loss of a honeycomb structural body to be inspected, at a point of time when the honeycomb structural body to be inspected catches said given amount of the particles, and (4) based on the thus measured pressure loss, presuming the pressure loss at a point of time suitable for the regeneration thereof with reference to the relationship determined above. An apparatus is also disclosed to effect the above process.
    • 公开了在蜂窝结构体再生时的时间点,确定要检查的废气净化蜂窝结构体的压力损失的方法,所述蜂窝结构体具有在相对端交替密封的多个通孔 其特征在于,包括以下步骤:(1)使颗粒通过在其通孔的轴向上的给定类型的排气净化蜂窝结构体中的每一个,(2)确定废气净化的压力损失之间的关系 蜂窝结构体在蜂窝结构体捕获一定量的颗粒的时间点和蜂窝结构体的压力损失在蜂窝结构体以适合于再生的量捕获颗粒的时间点的时间点 ,(3)然后测量待检查的蜂窝结构体的压力损失,在ho的时间点 要检查的neycomb结构体捕获所述给定量的颗粒,以及(4)基于如此测量的压力损失,假设在适于其再生的时间点上的压力损失参考上述确定的关系。 还公开了一种实现上述过程的装置。