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Benefits of wonder process craft on engine valve train performance

机译:Wonder Process Craft对发动机阀门火车的好处

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摘要

The performance and durability of tribological components in roller follower valve train is governed mainly by the roller rotational behaviour. Pure rolling of roller on the camshaft surface is essential to achieve the optimum valve train efficiency. The increase in roller slip can lead to high valve train power loss due to increase in sliding friction and can increase the wear rate of mating surfaces of camshaft and roller. In this research work, a modern gasoline engine having end-pivoted roller finger follower valve train configuration has been instrumented to investigate the effects of Wonder Process Craft surface treatment on roller slip. Comprehensive test programme has been undertaken at transient camshaft speeds by employing the New European Drive Cycle under different oil temperatures and pressures. Remarkable reduction in roller slip was recorded for Wonder Process Craft surface treated roller as compared to the original unmodified roller indicating its strong potential of employment in engine valve train. The test rig, surface treatment of roller, instrumentation, experimentation, results and discussion have been presented in detail in this paper.
机译:滚子从动阀系中摩擦部件的性能和耐用性主要由滚子旋转行为治理。凸轮轴表面上的辊轧辊对实现最佳阀门列车效率至关重要。滚子滑移的增加可能导致由于滑动摩擦的增加而导致高阀门系电力损耗,并且可以提高凸轮轴和滚筒的配合表面的磨损率。在这项研究工作中,已经有一种现代汽油发动机,具有终端枢转的滚子从动阀门系列系列,以研究Wonder Process Craft表面处理对滚子滑动的影响。通过在不同的油温和压力下采用新的欧洲驱动周期,在瞬态凸轮轴速度下进行了综合测试程序。与原始未经修改的滚筒相比,诺斯工艺制造表面处理过的滚轮记录了滚子滑动的显着减少,指示其在发动机阀门列车中的使用潜力强。本文在本文中详细介绍了试验台,辊子,仪器,试验,结果和讨论的表面处理。

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