发明申请
US20050247131A1 Device and method for determining the state of a particle filter
审中-公开
用于确定颗粒过滤器状态的装置和方法
- 专利标题： Device and method for determining the state of a particle filter
- 专利标题（中）： 用于确定颗粒过滤器状态的装置和方法
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申请号： US10526307申请日： 2003-06-11
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公开(公告)号： US20050247131A1公开(公告)日： 2005-11-10
- 发明人: Norbert Breuer
- 申请人： Norbert Breuer
- 优先权： DE10242300.8 20020912
- 国际申请： PCT/DE03/01934 WO 20030611
- 主分类号： F01N3/02
- IPC分类号： F01N3/02 ; B01D46/00 ; B01D46/42 ; B01D46/44 ; G01N29/16
摘要：
A device for determining the state, in particular the permeability, of a particle filter has an acoustic source for transmitting an acoustic signal toward the particle filter and has an acoustic receiver for receiving the acoustic signal that has been changed by the particle filter. In addition, a control and evaluation unit is provided for controlling the acoustic source and evaluating the received acoustic signal.
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