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    • 40. 发明授权
    • Method and apparatus for filtering solid particulate matter from diesel
engine exhaust
    • 从柴油机废气中过滤固体颗粒物的方法和装置
    • US4864821A
    • 1989-09-12
    • US51231
    • 1987-05-11
    • Robert Hoch
    • Robert Hoch
    • F01N3/02F01N3/022F01N3/023F01N3/032F02B1/04F02B3/06F02M25/07
    • F01N3/032F01N3/0222F01N3/023F01N3/0233F02M26/60F01N2330/06F02B1/04F02B3/06F02M26/15
    • An improved method for removing solid particulate matter from the exhaust of a diesel engine, having the steps of passing the engine's exhaust flow through at least a part of filter means to trap solid particulate matter contained initially in the exhaust, thereby to remove said matter from said exhaust flow, periodically interrupting the exhaust flow through at least said part of the filter means, passing, during said interruption, at least one backflush fluid pulse through at least said part of the filter means thereby to dislodge from the filter means, and entrain, said solid particulate matter, and transporting said dislodged solid particulate matter to the intake of said engine so that said matter can be combusted in the engine, wherein the improvement comprises purge means advantageously positioned so as to allow the discharge of noncombustible particulate matter from the engine before it accumulates to a harmful level.
    • 一种用于从柴油发动机的排气中除去固体颗粒物质的改进方法,其具有使发动机的排气流通过至少一部分过滤装置的步骤,以捕获最初包含在排气中的固体颗粒物质,从而将所述物质从 所述排气流周期性地中断通过过滤器装置的至少所述部分的排气流,在所述中断期间通过至少所述过滤装置的所述部分的至少一个反冲洗流体脉冲从而从过滤装置移出并夹带 ,所述固体颗粒物质,并将所述移出的固体颗粒物质运送到所述发动机的进气口,使得所述物质可在所述发动机中燃烧,其中所述改进包括有利地定位以便允许将不可燃颗粒物质从所述发动机排出的吹扫装置 引擎在积累到有害水平之前。