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人们用一种新型的塑料替代传统的汽车发动机中活塞环的材料,初步研究显示使用这种塑料后,不仅能提高经济性,增大功率;而且还能减少排放,降低催化式排气净化器的磨损。 一个典型的活塞由三个环组成,顶部两个是压缩环,对气缸内的活塞起密封作用,通过密封而保留活塞上方空间的燃烧力以把压缩损耗减少到最小。第三个环或称刮油环,其作用是将气缸壁上多余的润滑油刮
People use a new type of plastic to replace the traditional automotive engine piston ring material, preliminary studies have shown that the use of this plastic, not only can improve economy, increase power; but also reduce emissions and reduce the catalytic exhaust purifier Wear and tear. A typical piston consists of three rings, the top two are compression rings that seal the piston in the cylinder and retain the combustion force in the space above the piston by sealing to minimize compression loss. The third ring or scraper ring, its role is to cylinder wall excess lubricant scraping