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首页> 外文会议>The automobile in the second decade: sharing all energy solutions >BLOW-BY GASES COALESCING SEPARATION: PERFORMANCE OF ROTATING SOLUTION
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BLOW-BY GASES COALESCING SEPARATION: PERFORMANCE OF ROTATING SOLUTION

机译：漏气成色分离：旋转解决方案的性能

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In reciprocating internal combustion engines, the gas that leaks at the piston, rings and linerrnsystem is usually called blow-by. The blow-by is a complex mixture of air, burned and unburnedrngases and oil mist. In order to avoid external pollution, the blow-by is recycled in the air intakernsystem (AIS). This is called Closed Crankcase Ventilation (CCV). The CCV is the cause ofrnmajor issues such as air intake system fouling, oil consumption and participates in the exhaustrncatalyst poisoning phenomena. During recent decades a quite simple oil separation system basedrnon baffles was acceptable. Emission regulations are now tougher and a more efficient blow-byrnseparation system is required.rnA suitable and efficient means to achieve a good separation is to use the coalescence principlernthrough a specific media. Static coalescing separator is a good compromise between separationrnefficiency, pressure drop and cost.rnTo respect the majority of customer specifications, the most interesting technical solution is tornuse a rotating coalescing separator. Crankcase pressure is negative for all engine workingrnconditions and efficiency is very high even for thin oil mist generated at max torque and maxrnpower. With this rotary blow-by coalescer, oil consumption is reduced and so exhaust catalystrnpoisoning is reduced. It permits us to make potential savings on vehicle fuel consumption andrnpost-treatment systems value.
机译：在往复式内燃机中，在活塞，环和衬套系统处泄漏的气体通常称为漏气。漏气是空气，燃烧的和未燃烧的气体以及油雾的复杂混合物。为了避免外部污染，窜气在进气系统（AIS）中进行再循环。这称为曲轴箱关闭通风（CCV）。 CCV是进气系统结垢，机油消耗等主要问题的原因，并参与了排气催化剂中毒现象。在最近的几十年中，基于非挡板的非常简单的油分离系统是可以接受的。现在，排放法规更加严格，需要更有效的漏气分离系统。实现良好分离的合适而有效的方法是通过特定介质使用聚结原理。静态聚结分离器是分离效率，压降和成本之间的良好折衷。为了遵守大多数客户规格，最有趣的技术解决方案是撕裂旋转聚结分离器。在所有发动机工况下，曲轴箱压力均为负值，即使对于以最大扭矩和最大功率产生的稀薄油雾，效率也很高。利用这种旋转漏气聚结器，减少了油耗，因此减少了排气催化剂中毒。它使我们可以节省车辆燃油消耗和后处理系统的价值。

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