本文首先回顾了柴油机燃用重油的历史。随后介绍了重油对活塞的影响和对活塞设计提出的新要求,以及 W(?)rtsil(?)厂所采取的相应措施。例如将一部分润滑油通过油嘴供入活塞裙上部、油环下面的环形槽内,保证润滑油持续均匀地分布在裙部关键表面等。最后介绍了试验结果。 This article first reviews the history of heavy fuel oil for diesel engines. The effect of heavy oil on the piston and the new requirements for the design of the piston are introduced, followed by the corresponding measures taken by the Wörts rtsil plant. For example, a part of the lubricating oil is supplied to the upper part of the piston skirt and the annular groove under the oil ring through the nozzle to ensure that the lubricating oil is continuously and evenly distributed on the key surface of the skirt. Finally, the experimental results are introduced.