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    COOLING DEVICE AND CONSTRUCTION MACHINE OR WORKING MACHINE EQUIPPED WITH THE SAME
    1.
    发明授权
    COOLING DEVICE AND CONSTRUCTION MACHINE OR WORKING MACHINE EQUIPPED WITH THE SAME 有权
    冷却装置和施工机器或与之相配的工作机器

    公开(公告)号：EP2184196B1

    公开(公告)日：2012-08-01

    申请号：EP08828321.3

    申请日：2008-08-29

    申请人： Komatsu Ltd.

    发明人： YABE, Mitsuo c/o KOMATSU LTD. ,  SHINODA, Hiroki c/o KOMATSU LTD. ,  IKEDA, Masahiro c/o KOMATSU LTD. ,  WATANABE, Tomoya c/o KOMATSU LTD. ,  KAWANO, Atsushi c/o KOMATSU LTD. ,  FUCHITA, Seiichi c/o KOMATSU LTD. ,  KUSUYAMA, Yasuhiro c/o KOMATSULTD. ,  MATSUKI, Teruyuki c/o KOMATSU LTD.

    IPC分类号： B60K11/04 ,  E02F9/00 ,  F01P11/10 ,  F28F9/00

    CPC分类号： E02F9/00 ,  B60K11/04 ,  E02F9/0866 ,  F01P11/10 ,  F04D29/164

    摘要： A cooling device comprises a cooling fan (21), a shroud provided on the outer circumferential side of the cooling fan (21), an inner circumferential wall portion (52) arranged on the shroud in the vicinity of the outer circumferential portion of the cooling fan (21), and an outer circumferential wall portion (53) provided around the inner circumferential wall portion (52). In this cooling device, the downstream side end of the outer circumferential edge of the cooling fan (21) in the air flow direction is located on the farther air flow downstream side than the downstream side end of the inner circumferential wall portion (52) in the air flow direction, and the angle (α) between a line (L1) connecting the downstream side end of the inner circumferential wall portion (52) in the air flow direction and the downstream side end of the outer circumferential wall portion (53) in the air flow direction and a line (L2) perpendicular to the air flow direction is within the range of 9-45 degrees on the cross-section of the inner circumferential wall portion (52) and the outer circumferential wall portion (53) along the air flow direction.

    摘要翻译： 冷却装置具有冷却风扇（21），设置在冷却风扇（21）的外周侧的护罩，在冷却的外周部附近配置在护罩上的内周壁部（52） 风扇21以及设置在内周壁部52周围的外周壁部53。 在该冷却装置中，冷却风扇21的空气流动方向的外周缘的下游侧端位于比内周壁部52的下游侧端更靠下游侧的空气流下游侧 气流方向以及将内周壁部52的空气流动方向的下游侧端部与外周壁部53的下游侧端部连结的线L1之间的角度α， 在内周壁部（52）和外周壁部（53）的截面上，空气流动方向和垂直于空气流动方向的线（L2）在9-45度的范围内 气流方向。