Lubrication structure of valve gear
    33.
    发明专利
    Lubrication structure of valve gear 有权
    阀门齿轮润滑结构

    公开(公告)号:JP2009103083A

    公开(公告)日:2009-05-14

    申请号:JP2007277156

    申请日:2007-10-25

    Abstract: PROBLEM TO BE SOLVED: To improve durability of sliding surfaces of a swing cam mechanism and a drive cam, in an engine valve gear. SOLUTION: This lubrication structure includes the valve gear 50A reciprocating a valve body 53 opening/closing an intake port 20A communicating with the combustion chamber 52 of an engine E; and an oil pipe 66 allowing oil for lubricating the valve gear 50A to flow therein and formed with a delivery port 66a for delivering the oil to the outside. The valve gear 50A is provided with: the drive cam 24a interlocked with the rotation of the crankshaft 26 of the engine E; a driven member 64 contacting the drive cam 24a; a swing member 61 attached to the driven member 64 for transmitting the movement of the driven member 64 to a valve; and a relative position changing mechanism 80 changing a relative position between the driven member 64 and the swing member 61. The delivery port 66a of the oil pipe 66 is directed to the sliding surfaces of the driven member 64 and the drive cam 24a in at least a partial period during one rotation of the drive cam 24a. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提高发动机气门齿轮中的摆动凸轮机构和驱动凸轮的滑动面的耐久性。 解决方案:该润滑结构包括阀门50A往复运动,阀体53打开/关闭与发动机E的燃烧室52连通的进气口20A; 以及油管66,其允许用于润滑阀齿轮50A的油流入其中并形成有用于将油输送到外部的输送口66a。 阀齿轮50A设置有:与发动机E的曲轴26的旋转联动的驱动凸轮24a; 与驱动凸轮24a接触的从动构件64; 附接到从动构件64的摆动构件61,用于将从动构件64的运动传递到阀; 和相对位置改变机构80改变从动构件64和摆动构件61之间的相对位置。油管66的输送口66a至少被引导到从动构件64和驱动凸轮24a的滑动表面 在驱动凸轮24a的一个旋转期间的局部周期。 版权所有(C)2009,JPO&INPIT

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