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一、前言活塞环的功能主要是在气缸壁和活塞之间形成良好的密封,阻止过度漏气并维持可燃混合气的压缩,其次是刮去缸壁上多余的润滑油,防止润滑油窜入燃烧室。因此,活塞环技术状况的好坏,必然直接影响发动机的动力性、经济性和可靠性。由于活塞环工作条件苛刻,就难免发生磨耗和损坏。同时,受检测手段的限制,保养和修理时机不合理的问题依然存在。这样,尽管东风牌汽车EQ6100型发动机的活塞环从材料、结构和工艺等方面与其他国产车相比均有所改善,但同样存在着如何延长使用寿命的问题。
First, the preface The main function of the piston ring is to form a good seal between the cylinder wall and the piston to prevent excessive air leakage and to maintain the compression of the combustible mixture, followed by scrape the excess oil on the cylinder wall to prevent oil from fleeing Combustion chamber. Therefore, the technical status of the piston ring is good or bad, must directly affect the engine power, economy and reliability. As the piston ring harsh working conditions, it is inevitable wear and damage. At the same time, the problem of unreasonable timing of maintenance, testing and maintenance still remains. In this way, although the piston ring of Dongfeng brand EQ6100 engine has improved compared with other domestic cars in materials, structure and technology, there is also a problem of how to prolong the service life.