A forcedly air-cooled engine
    2.
    发明公开
    A forcedly air-cooled engine 失效
    Mit LuftzwangsgekühlteBrennkraftmaschine。

    公开(公告)号:EP0403033A1

    公开(公告)日:1990-12-19

    申请号:EP90202086.6

    申请日:1987-08-26

    申请人: KUBOTA LTD.

    IPC分类号: F01P1/02 F01P3/02 F01P9/00

    摘要: In a forcedly air-cooled engine (1) a local high temperature portion (16) is adapted to be cooled effectively so that thermal distortion and thermal breakage of a cylinder (24) and/or a cylinder head (3) caused by such a local high temperature can be avoided.
    As the means for preventing thermal distortion, there is provided a cylinder jacket (17) for cooling part of its cylinder (24), provided in a partition wall (16) between the cylinder and its push rod chamber (18). As the means for preventing thermal distortion of the cylinder head (3), there is provided a cooling air passage (37) in a cylinder head (3) and a head jacket (33) for oil cooling around a divided combustion chamber (28) so as to circulate oil through the head jacket (33).
    Local high temperature portions of the cylinder and/or the cylinder head can thereby be effectively cooled.

    摘要翻译: 在强制风冷发动机(1)中,局部高温部分(16)适于被有效地冷却,使得气缸(24)和/或气缸盖(3)引起的热变形和热断裂 可以避免局部高温。 作为用于防止热变形的装置,提供了一种用于冷却其气缸(24)的部分的气缸套(17),其设置在气缸和其推杆室(18)之间的分隔壁(16)中。 作为用于防止气缸盖(3)的热变形的装置,在气缸盖(3)和围绕分割的燃烧室(28)的油冷却的头套(33)上设置有冷却空气通道(37) 以便使油通过头套(33)循环。 因此可以有效地冷却气缸和/或气缸盖的局部高温部分。

    An overhead-valve type forcedly air cooled engine
    3.
    发明公开
    An overhead-valve type forcedly air cooled engine 失效
    Mit gezwungener LuftgekühlteBrennkraftmaschine mithängendenVentilen。

    公开(公告)号:EP0260027A2

    公开(公告)日:1988-03-16

    申请号:EP87307573.3

    申请日:1987-08-26

    申请人: KUBOTA LTD.

    IPC分类号: F01P1/02 F01P3/02 F01P9/00

    摘要: An overhead-valve type forcedly air-cooled engine has a cylinder jacket (17) for cooling part of its cylinder (24), provided in a partition wall (16) between the cylinder and its push rod chamber (18) in order to solve a problem such as thermal distortion of the cylinder. A portion of the lubricating oil delivered from an oil pump (10) in a forced lubrication system employed in the engine serves to cool only the partition wall (16) which forms part of the periphery of the cylinder (24) during passing through the cylinder jacket (17).

    摘要翻译: 顶置式强制风冷发动机具有用于冷却其缸体(24)的一部分的气缸套(17),设置在气缸和其推杆室(18)之间的分隔壁(16)中,以解决 诸如气缸的热变形的问题。 在用于发动机的强制润滑系统中从油泵(10)输送的润滑油的一部分用于仅在通过气缸的过程中仅冷却形成气缸(24)周边的一部分的分隔壁(16) 夹克(17)。