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Polymer-derived ceramics based fuel atomizers

机译：聚合物衍生的陶瓷基燃料雾化器

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We describe the design of novel fuel atomizers with a unique internal spiral-conical structure for turbine engines and other propulsion systems. The atomizers are developed using a unique combination of two recently developed technologies: polymer-derived ceramics and an invert microstereolithography process. The polymer-derived ceramics are stable up to high temperatures (1500～1800℃) and have excellent mechanical and thermal properties. Thus, fuel atomizers made from these materials can be used at high temperatures and have higher corrosion resistance. Invert microstereolithography is a recently developed 3-D microfabrication process that enables complex 3-D structures to be built with high dimensional precision (1 μm). The resulting atomizers have many advantages, including stability at high temperatures, high resistance to corrosion, a unique structure for efficient sprays, low cost and amenability to batch manufacturing. With the success of our earlier investigation and recent development, we are able to develop novel atomizers that will fill an immediate need for propulsion systems and many other high-temperature applications. In the future, we will integrate the atomizers into combustion systems and perform physical demonstration of the complete fuel injection system on a representative engine platform for a range of operating conditions.
机译：我们描述了新颖的燃料雾化器的设计，该燃料雾化器具有用于涡轮发动机和其他推进系统的独特内部螺旋锥形结构。雾化器是使用两种最新开发技术的独特组合开发的：聚合物衍生的陶瓷和反向微立体光刻工艺。聚合物陶瓷在高温（1500〜1800℃）下稳定，并具有优异的机械性能和热性能。因此，由这些材料制成的燃料雾化器可以在高温下使用并且具有更高的耐腐蚀性。倒置微立体光刻技术是最近开发的3-D微细加工工艺，能够以高尺寸精度（1μm）构建复杂的3-D结构。所得的雾化器具有许多优点，包括高温下的稳定性，高耐腐蚀性，有效喷雾的独特结构，低成本和易于批量生产的优点。随着我们早期研究和近期开发工作的成功，我们能够开发出新颖的雾化器，这些雾化器将立即满足对推进系统和许多其他高温应用的需求。将来，我们将把雾化器集成到燃烧系统中，并在具有代表性的发动机平台上针对各种工况进行完整燃料喷射系统的物理演示。

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