一、应用介绍 活塞环在内燃机中起着保持气密性,控制机油消耗量,支承活塞运动和传热的作用。设计对气缸壁具有合理径向压力分布的活塞环,是提高活塞环使用寿命,更持久地发挥好上述作用的途径之一。 但是,限于活塞环理论设计繁复,人工计算周期长,不精确,许多生产厂过去习惯沿用40年代的金茨布尔赫理论的一个特解系数,套用制作各种活塞环。显然,这是不合理的。实践证明,不同的内燃机应具有不同的活塞环径向压力分布及其自由形状。 为了减少设计工作的盲目性,提高产品质量,使设计工作系列化、标准化、通用化。我们在1979年末,选用阿诺德理论,利用TQ First, the application introduction Piston ring in the internal combustion engine plays to maintain air tightness, control oil consumption, support piston movement and heat transfer. Designing a piston ring with a reasonable radial pressure distribution on the cylinder wall is one of the ways to improve the service life of the piston ring and to exert it more permanently. However, due to the complicated design of the piston ring theory, the long artificial calculation period and inaccuracies, many manufacturers used to make use of a special coefficient of the Gingachel theory in the 1940s to apply various piston rings. Obviously, this is unreasonable. Practice has proved that different internal combustion engines should have different radial distribution of piston ring pressure and its free form. In order to reduce the blindness of the design work, improve product quality, design work serialized, standardized and universal. In late 1979, we chose Arnold’s theory and TQ