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    WÄRMEÜBERTRAGER
    2.
    发明公开
    WÄRMEÜBERTRAGER 审中-公开

    公开(公告)号：EP3161402A1

    公开(公告)日：2017-05-03

    申请号：EP15727672.6

    申请日：2015-06-10

    申请人： Mahle International GmbH

    发明人： MAUCHER, Ulrich ,  MERCADER, David ,  HOLDENRIED, Jens ,  STREHLAU, Arthur

    IPC分类号： F28D7/16 ,  F28D21/00

    摘要： The invention relates to a heat exchanger (20) for an exhaust tract of a motor vehicle, having a housing (2) and having a multiplicity of tubes (3) through which exhaust gas can flow and around which a coolant can flow, wherein the tubes (3) are arranged within the housing (2), and the housing (2) has a coolant inlet (5, 9) and a coolant outlet (6), wherein the exhaust gas and the coolant can flow in a countercurrent configuration with respect to one another through the heat exchanger (20), wherein the internal volume of the housing (2) is divided into a first flow path (22) and a second flow path (21) and the tubes (3) are arranged within the second flow path (21), wherein the first flow path (22) forms a bypass with respect to the second flow path (21), wherein the cross-sectional area (A
    B ) of the first flow path (22) amounts to between 15% and 65%, preferably between 30% and 50%, of the total cross-sectional area (A
    T ), through which the coolant flows, of the housing (2), wherein the total cross-sectional area (A
    T ), through which the coolant flows, of the housing (2) is formed by the cross-sectional area (A
    B ) of the first flow path (22) and the cross-sectional area of the second flow path (21) minus the cross-sectional area occupied by the tubes (3).

    摘要翻译： 本发明涉及一种用于机动车辆的排气管道的热交换器（20），该热交换器具有壳体（2）并且具有多个管（3），废气可以流过该管并且冷却剂可以在该管周围流动，其中， 在所述壳体（2）内布置有管（3），并且所述壳体（2）具有冷却剂入口（5,9）和冷却剂出口（6），其中所述排气和所述冷却剂可以以逆流构造 通过热交换器（20）彼此相对，其中壳体（2）的内部容积被分成第一流动路径（22）和第二流动路径（21），并且管（3）布置在第一流动路径 第二流动路径（21），其中第一流动路径（22）相对于第二流动路径（21）形成旁路，其中第一流动路径（22）的横截面积（AB）等于15 （2）的所述冷却剂流过的总横截面积（AT）的50％至65％，优选30％至50％，其中所述 通过第一流动路径（22）的横截面积（AB）和第二流动横截面积（H）形成壳体（2）的冷却剂流过的总横截面积（AT） 路径（21）减去管（3）占据的横截面积。