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21. 发明授权

US4355504A Apparatus for reducing particles discharged by combustion means 失效
标题翻译：用于减少由燃烧装置排出的颗粒的装置
公开(公告)号：US4355504A
公开(公告)日：1982-10-26
申请号：US215460
申请日：1980-12-11
申请人： Benjamin Y. H. Liu , David B. Kittelson , Daniel F. Dolan , David Y. H. Pui
发明人： Benjamin Y. H. Liu , David B. Kittelson , Daniel F. Dolan , David Y. H. Pui
IPC分类号： F01N3/01 , F01N3/021 , F01N3/037 , F01N13/02 , F02B3/06 , F02M25/07 , F01N3/00
CPC分类号： F01N3/037 , F01N13/009 , F01N3/01 , F01N3/021 , F01N3/0211 , F02M26/15 , F01N2250/00 , F01N2330/10 , F01N2330/20 , F01N2470/18 , F02B3/06 , Y02T10/20 , Y10S55/30
摘要： Apparatus for controlling particulate emissions from a combustion apparatus, such as a diesel engine. Diesel engine exhaust particles are electrically charged during the formation of the particles in the engine combustion chambers. A particle collector is used to collect the electrically charged particles on collecting structures connected to a high voltage power supply and ground. The collecting structures of the particle collector can be a plurality of parallel metal plates, spaced cylindrical rods, or concentrically located cylindrical members. A fibrous matrix can be located adjacent the particle collecting structure to collect the charged particles as they move through the matrix. In one embodiment, the collected particles separate from the collecting structures and return to the engine intake. In another embodiment, a removable collecting cartridge has electrically conductive plates for collecting the charged particles. The entire cartridge is removed for cleaning or replacement. The hot exhaust gas from the engine can be used to oxidize the collected particles. The collected particles that are not oxidized can be separated from the collecting structures and re-entrained into the gas. The re-entrained particles are larger than the particles formed in the combustion apparatus. The large particles can be removed by a downstream particle collection device.
摘要翻译：用于控制来自诸如柴油发动机的燃烧装置的颗粒物排放的装置。在发动机燃烧室内形成颗粒期间，柴油发动机废气颗粒被带电。使用粒子收集器来收集连接到高压电源和接地的收集结构上的带电粒子。颗粒收集器的收集结构可以是多个平行的金属板，间隔开的圆柱形杆或同心定位的圆柱形构件。纤维基质可以位于颗粒收集结构附近，以便在带电粒子移动通过基质时收集带电粒子。在一个实施例中，收集的颗粒与收集结构分离并返回到发动机进气口。在另一个实施例中，可拆卸的收集盒具有用于收集带电粒子的导电板。整个墨盒被清除或更换。来自发动机的热废气可用于氧化收集的颗粒。未被收集的未被氧化的颗粒可以从收集结构中分离并重新夹带到气体中。再夹带的颗粒大于在燃烧装置中形成的颗粒。大颗粒可以通过下游颗粒收集装置去除。

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