INTERNAL COMBUSTION ENGINE
    12.
    发明公开
    INTERNAL COMBUSTION ENGINE 有权
    VERBRENNUNGSMOTOR

    公开(公告)号:EP1639243A4

    公开(公告)日:2009-05-13

    申请号:EP04756195

    申请日:2004-06-25

    Abstract: A two-stroke internal combustion engine is disclosed having opposed cylinders, each cylinder having a pair of opposed pistons, with all the pistons connected to a common central crankshaft. The inboard pistons of each cylinder are connected to the crankshaft with pushrods and the outboard pistons are connected to the crankshaft with pullrods. Each opposed cylinder further comprises an integrated scavenge pump for providing positive intake pressure. This configuration results in a compact engine with a very low profile, in which the free mass forces can be substantially balanced. The engine configuration also allows for asymmetrical timing of the intake and exhaust ports through angular positioning of the journals on the crankshaft.

    Abstract translation: 公开了一种两冲程内燃机,其具有相对的气缸,每个气缸具有一对相对的活塞,所有活塞均连接到共同的中心曲轴。 每个气缸的内侧活塞通过推杆连接到曲轴,外侧活塞通过拉杆连接到曲轴。 每个对置的汽缸还包括用于提供正吸入压力的集成式回油泵。 该配置导致具有非常低轮廓的紧凑型发动机,其中自由质量力可以基本平衡。 发动机配置还允许通过曲轴上的轴颈的角度定位来对进气口和排气口进行不对称的定时。

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