CONSTRUCTION MACHINE
    128.
    发明公开
    CONSTRUCTION MACHINE 有权
    施工机械

    公开(公告)号:EP2824297A1

    公开(公告)日:2015-01-14

    申请号:EP13813521.5

    申请日:2013-06-19

    申请人: Komatsu Ltd.

    IPC分类号: F01N3/24 E02F9/00 F01N3/08

    摘要: An exhaust gas aftertreatment device (30) provided to an upper portion of an engine (7) includes a right and left pair of first and second aftertreatment units (31, 32), into which exhaust gas from the engine (7) dividedly flows, each including a first exhaust gas emission control system (33) on an upstream side, a second exhaust gas emission control system (34) on a downstream side and a communication pipe (35) through which the first and second systems (31, 34) are in communication with each other, the first and second systems (33, 34), while being arranged side by side in a right-and-left direction, being oriented so that a flow direction of the exhaust gas flowing therein is parallel with a front-and-rear direction. When the device (30) is seen in the front-and-rear direction, an outer linear envelope (E) tangent to the first system (33) and the communication pipe (35) of each of the units (31, 32) extends upward while tilting toward a right-and-left center of the engine (7).

    摘要翻译: 设置在发动机(7)的上部的排气后处理装置(30)包括:左右一对第一和第二后处理单元(31,32),来自发动机(7)的排气分流流入该第一和第二后处理单元(31,32) 每个系统包括上游侧的第一废气排放控制系统(33),下游侧的第二废气排放控制系统(34)以及连通第一和第二系统(31,34)的连通管(35) 相互连通的同时,第一和第二系统(33,34)在左右方向上并排布置,并且被定向为使得在其中流动的排气的流动方向平行于第一和第二系统 前后方向。 当沿前后方向看设备(30)时,与每个单元(31,32)的第一系统(33)和连通管(35)相切的外部线性包络线(E)延伸 同时向发动机(7)的左右中心倾斜。