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Some Considerations Concerning Lubrication in High-Performance Internal Combustion Engines

机译：高性能内燃机润滑的一些注意事项

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摘要

The increasing rotational speeds and the weight reduction of high-performance internal combustion engines are accompanied by problems of lubrication, heat transfer, and vibration that are mostly negligible in medium- and low-performance engines. To deal with such phenomena under demanding operating conditions necessitates a specific design. The dynamics of the power system between crankshaft and related sub-components, e.g., bending and torsional vibrations of the connecting rod, ovalisation of the head and eye of the connecting rod, and vibrations of thin cylinder liners, are critical for the lubrication system in general, and for oil film pressure fields in particular. In some cases, no information on these features has existed until now, so no quantification of the variables involved has been possible. Over the last few years a systematic investigation has been performed to take into account the critical points and their fundamental importance in the design of such engines. The present paper considers some of the phenomena related to lubrication in high-performance engines. The need is highlighted for further investigations using computational and experimental methodologies.
机译：高性能内燃机的转速增加和重量减轻伴随着润滑，传热和振动问题，而在中，低性能发动机中这些问题几乎可以忽略不计。为了在苛刻的操作条件下处理此类现象，必须进行特定的设计。曲轴和相关子组件之间动力系统的动力学，例如，连杆的弯曲和扭转振动，连杆的头部和孔眼的椭圆化以及薄缸套的振动，对于润滑系统至关重要。一般而言，尤其是对于油膜压力场。在某些情况下，到目前为止，还没有有关这些功能的信息，因此无法量化所涉及的变量。在过去的几年中，已经进行了系统的研究，以考虑到关键点及其在此类发动机设计中的基本重要性。本文考虑了与高性能发动机润滑相关的一些现象。强调了使用计算和实验方法进行进一步研究的需求。

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