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1前言 近年来,为了节省燃料,汽油机活塞在设计和研制方面直接向着减轻重量和减小摩擦方向发展。 重量减轻包括断面壁厚减薄、活塞销直径减小和压缩高度（即活塞顶部至活塞销孔中心轴线的距离）减小;在将来的发动机中,减小压缩高度可使相关件的重量减轻和发动机外型尺寸的缩小。相对而言,在裙部设计中具有创新的AE“X”——活塞就体现了前面所论述的重量减轻,并且因此而提供了可能的更进一步的重量减轻。 摩擦减小包括直接和间接两种。关于直接减小磨擦的方法。目前AE集团已有自己的专利产品。
1 Introduction In recent years, in order to save fuel, gasoline engine piston in the design and development directly to reduce weight and reduce the friction direction. Weight reduction includes thinning of the section wall thickness, reduced piston pin diameter and reduced compression height (ie, the distance from the top of the piston to the central axis of the piston pin bore); in future engines, reducing the compression height reduces the weight of the relevant part And engine size reduction. In contrast, the innovative AE “X” -piston in skirt design embodies the aforementioned weight reduction and thus offers the potential for further weight loss. Friction reduction includes both direct and indirect. On the direct reduction of friction method. AE Group currently has its own patented product.