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    • 5. 发明公开
    • PISTON CONFIGURATION FOR REDUCING SMOKE AND PARTICULATE EMISSIONS FROM DIRECT INJECTED ENGINES
    • 塑造一个活塞关于减排,可用于直接机
    • EP1226350A4
    • 2006-08-30
    • EP00975202
    • 2000-10-17
    • SONEX RES INC
    • LETO DI PRIOLO CARLOPOURING ANDREW A
    • F02B3/06F02B21/02F02B23/06F02F3/26
    • F02B23/0627F02B3/06F02B21/02F02B23/0624F02B23/0639F02B23/0669F02B2275/14Y02T10/125
    • A diesel cycle, direct injected internal combustion engine is provided with a piston recess (114) or bowl into which fuel is injected each combustion cycle. One or more reaction chambers (115) adjacent the piston recess are in communication with the recess through an array of discrete orifices (116, 118, 120, 122, 124) located along the side wall of the recess (114). Partial reaction of fuel and air in the reaction chambers each combustion cycle produces radicals including intermediate species for seeding a fuel air mixture of a following combustion cycle through a delayed discharge of radicals from the reaction chamber into the piston recess. The discrete orifices are arranged in a specific array that ensures a desired chaotic flow in the reaction chambers and maximum interaction between radicals discharged from the reaction chamber (115) and the soot cloud formed in the combustion chamber upon ignition of the fuel air mixture in the piston recess. Two or more rows of orifices may be used with at least one row located centrally along the reaction chamber cross section and at least a second row intersecting the first row and arranged diagonally or vertically relative to the first row. The diagonal or vertical row includes orifices that intersect the reaction chamber tangentially at upper and lower regions thereof. The disclosed apparatus results in an exhaust effluent having markedly reduced smoke and particulate components.
    • 柴油循环,直接喷射内燃发动机设置有在其中燃料被喷射在每个燃烧循环的活塞凹口或碗。 邻近活塞凹部的一个或更多的反应室是在与所述凹部连通到通过沿所述凹部的侧壁位于离散的孔的阵列。 在反应室每个燃烧循环产生基团,包括用于接种一个燃烧循环通过自由基的延迟放电从反应室到活塞凹部之后的燃料空气混合物的中间产物的燃料和空气的部分反应。 离散孔以特定的阵列布置确实确保在反应室与反应室并且当在活塞凹槽中的燃料空气混合物的点燃在燃烧室中形成的烟灰云排出自由基之间的期望的乱流和最大相互​​作用。 孔口的两排或多排可以与位于中央的沿所述反应室的横截面和至少一个第二行相交的第一行的至少一行中使用斜或垂直相对布置的第一行。 对角线或垂直行包括孔口做相交于它们的上部和下部区域的反应室相切。 在流出物排出的盘装置游离缺失结果具有显着降低的烟雾和颗粒组分。