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    • 2. 发明申请
    • EXHAUST SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
    • 排气系统的内燃发动机
    • WO2006116788A3
    • 2007-06-21
    • PCT/AT2006000182
    • 2006-05-02
    • AVL LIST GMBHKAPUS PAULGLANZ REINHARDPOESCHL ROBERTGROEGER MICHAELBREINESBERGER BURKHART
    • KAPUS PAULGLANZ REINHARDPOESCHL ROBERTGROEGER MICHAELBREINESBERGER BURKHART
    • F01N13/18F01N13/08F01N13/10
    • F01N13/1805F01N13/08F01N13/10F01N2470/14F01N2470/20
    • The invention relates to an exhaust system (10) for an internal combustion engine (20) comprising a number of cylinders (1, 2, 3, 4) with a preferably one-piece exhaust pipe assembly with at least one first exhaust pipe (11, 12, 13, 14) per cylinder (1, 2, 3, 4). Two first exhaust pipes (11, 14; 12, 13) of both cylinders (1, 2, 3, 4), which do not immediately follow one another in the firing order, lead into a second exhaust pipe (15, 16), and two second exhaust pipes (15, 16) lead into a common manifold (17). The invention provides that, in the opening area (21, 22, 23) of both first and/or second exhaust pipes (11, 14; 12, 13; 15, 16), the uniting first and second exhaust pipes (11, 14; 12, 13; 15, 16) span an angle (a 1 , a 2 ) = 30°, preferably = 20°, said angle (a 1 , a 2 ) being spanned by the tangents (t 1 , t 2 , t 3 , t 4 ) at reference points (P 1 , P 2 , P 3 , P 4 ) of the inner wall (11a, 14a; 12a, 13a; 15a, 16a) of the exhaust pipes (11, 14; 12, 13; 15, 16). These reference points (P 1 , P 2 , P 3 , P 4 ) are defined by an amount (a 1 , a 2 ), which is approximately half the diameter (d 1 , d 2 ) of the first and second exhaust pipe (11, 14; 12, 13; 15, 16), upstream from a first points of intersection (S 1 , S 2 ) of both tangents (t 1 , t 2 , t 3 , t 4 ).
    • 本发明涉及具有多个气缸(1,2,3,4),以及与每个气缸(1,2,3,4)的至少一个第一排气管上的优选的单件的排气管布置的排气系统(10)用于内燃发动机(20)(11 中的两个点火顺序引线12,13)是不紧挨着的连续的气缸(1,2,3,4)在每种情况下的第二排气管(15,16),12,13,14),每两个第一排气管(11,14 且其中每两个第二排气管(15,16)到一个共同的歧管(17)开放的。 所以建议在第一和/或第二两个排气管的口区域(21,22,23)(11,14; 12,13; 15,16),它们一起领先的第一和第二排气管(11,14; 12,13 ; 15,16)形成的角度(一个 1 ,一个 2 )= 30°,优选= 20°,跨度,其中所述角度(α 1 ,A 2 )(由切线吨 1 ,叔 2 ,叔 3 ,<吨SUB > 4 )(在参考点P 1 ,P 2 ,P 3 ,P 4 ) 内壁上的排气管(11A,14A; 12A,13A 15A,16A)(11,14; 12,13; 15,16)被夹紧,其基准点(P 1 ,P 2 ,P 3 ,P 4 )至大约(以直径d半 1 ,D 2 )所述第一和第二排气管(11,14的; 12,13; 15,对应于(一个 1 ,一个 2 )的第一交叉点的上游( 小号 1的两个切线的,S 2 )(T 1 ,叔 2 ,叔< SUB> 3 4 )被定义。