本文是根据苏联1974年在梯比利斯举行的一次科学讨论会上的一组报告编写而成的。文中介绍了在l(?)H15/18单缸机上采用变压缩比活塞所进行的一些性能调整试验、液压随动系统过程测试以及这种活塞的静应力及温度场的研究结果。虽然这些研究带有较早期的予研性质,但从中也可以了解到苏联在车里雅宾斯克城关于B2—150系列柴油机上改进与发展的一个方面。 This article is based on a series of reports from a scientific symposium held in Tbilisi in the Soviet Union in 1974. In this paper, some performance adjustment tests, hydraulic follow-up system process test and static stress and temperature field of piston with variable compression ratio on l (?) H15 / 18 single cylinder engine are introduced. Although these researches are of an earlier nature of pre-research, one aspect of the Soviet Union’s improvement and development on the B2-150 series of diesel engines in Chelyabinsk city can also be seen.