Tsung-Yu Yang

Nov 16, 2024 | mdpi.com | Mo Li |Tian Tian |Tsung-Yu Yang

1. IntroductionIn internal combustion engines, oil control rings play a crucial role in controlling the oil supply and significantly impacting lubricating oil consumption. TPOCRs have been widely adopted in modern engines due to their efficient oil control and reduced oil consumption. Although the use of TPOCRs has become prevalent, research on this topic remains notably lacking. The oil control ring shown in Figure 1 consists of three components, the upper rail, expander, and lower rail.