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活塞环的主要作用在于保持密封和控制机油。当前,内燃机的设计趋势是提高压力、温度和转速,从而使活塞环强度和耐磨性均出现问题。能源的短缺使制造业重视伴随而来的摩擦,需要活塞环能适应环境的要求。 对于轿车用内燃机,不论是汽油机或柴油机,就四缸内燃机而言,其机油消耗的最高水平为0.25升/1000公里,并且至少在使用100,000公里时不应增加。排量为1000cc的四缸内燃机,其泄漏量不应超过0.5～0.6升/分,排量为2000cc的四缸机,则不应超过1.0升/分。 机油消耗的恶化是确定耐久性的一项指标,其耐磨性应保证使用200,000公里时,机油消耗和泄漏量就有少许增加。本文对下列各问题分别叙述:
The main function of the piston ring is to keep the seal and control the oil. At present, the design trend of internal combustion engines is to increase the pressure, temperature and speed, so that the strength and wear resistance of piston rings are both problems. The shortage of energy makes the manufacturing industry attach importance to the accompanying friction and requires the piston ring to meet the requirements of the environment. For internal combustion engines for cars, whether gasoline or diesel, the maximum level of oil consumption for four-cylinder internal combustion engines is 0.25 liters / 1,000 kilometers and should not be increased at least for 100,000 kilometers. The displacement of 1000cc four-cylinder internal combustion engine, the leakage should not exceed 0.5 ~ 0.6L / min, displacement of 2000cc four-cylinder machine, you should not exceed 1.0L / min. Deterioration of oil consumption is an indicator of durability, and its wear resistance should ensure a slight increase in oil consumption and leakage with 200,000 kilometers. This article describes the following issues separately: