发明公开
- 专利标题: VERFAHREN UND VORRICHTUNG ZUR PARTIKELENTFERNUNG AUS ABGASEN VON BRENNKRAFTMASCHINEN
- 专利标题(英): Method and device for removing particles from internal-combustion engine exhaust gases.
- 专利标题(中): 方法和装置去除颗粒内燃发动机的废气。
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申请号: EP93915912.0申请日: 1993-07-14
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公开(公告)号: EP0650551A1公开(公告)日: 1995-05-03
- 发明人: BÖLT, Heinz , WALSER, Franz , SCHÖNEBORN, Axel
- 申请人: Linde Aktiengesellschaft , GST SYSTEME, GESELLSCHAFT FÜR ABSCHEIDE- UND STEUERTECHNIK mbH
- 申请人地址: Abraham-Lincoln-Strasse 21 D-65189 Wiesbaden DE
- 专利权人: Linde Aktiengesellschaft,GST SYSTEME, GESELLSCHAFT FÜR ABSCHEIDE- UND STEUERTECHNIK mbH
- 当前专利权人: Linde Aktiengesellschaft,GST SYSTEME, GESELLSCHAFT FÜR ABSCHEIDE- UND STEUERTECHNIK mbH
- 当前专利权人地址: Abraham-Lincoln-Strasse 21 D-65189 Wiesbaden DE
- 代理机构: Kasseckert, Rainer
- 优先权: DE19924223277 19920715
- 国际公布: WO1994002719 19940203
- 主分类号: F01N3
- IPC分类号: F01N3 ; B03C3
摘要:
The invention concerns a method and device for removing particles, in particular soot particles, from exhaust gases produced by internal-combustion engines. The invention calls for the particles to be electrostatically charged by an electrode (4). The particles or particle agglomerates are trapped by a fine-mesh metal filter (5). The conducting material (5a), preferably a sintered ferritic metal, of which the filter (5) is made can also be used as a collecting electrode. A high voltage (6) is applied (7, 10) to the electrodes. At intervals, preferably at regular intervals, an electric current is passed (11, 12) through the filter (5), causing the filter material (5a) to heat up to a temperature above the ignition temperature of the particles. The preferred shape of the filter surface is a cylinder, truncated cone and/or cone.
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