SBIR Phase I: Novel Light Weight Composites for Valves

* 9761177 Shdarshan 这个小型企业创新研究第一阶段项目将尝试建模，设计和制造碳-碳复合材料发动机气门。 碳-碳（C-C）复合材料是重量轻并且在高温下表现出高强度的材料。 C-C的密度（1.7g/cc）与不锈钢的7.7g/cc相比，其固有的润滑性是有吸引力的特征，使这种材料成为发动机阀门的候选材料。 发动机效率的很大一部分损失在燃烧室中。 如果所有部件都能用轻质材料重新设计，就能提高能源效率，减少燃烧产物中污染物的释放。 计划在第二阶段对瓣膜进行广泛测试，并在必要时重新设计形状。 该过程涉及广泛的测力计研究沿着，测试的前置时间较长。 C-C材料的潜在应用是在燃烧室的所有部件中，包括活塞、气门、气门导管、摇臂和连杆。 ***

*** 9761177 Shdarshan This Small Business Innovation Research Phase I project will attempt to model, design and fabricate Carbon-Carbon composite engine valves. Carbon-Carbon (C-C)composites are materials which are lightweight and exhibit high strengths at elevated temperatures. The density of C-C (1.7g/cc) versus 7.7g/cc for stainless steel and its inherent lubricity are attractive features that render this material as a candidate for engine valves. A significant proportion of engine efficiency is lost in the combustion chamber. If all parts can be redesigned with lightweight materials, the energy efficiency can be improved and the release of pollutants from combustion products decreased. Extensive testing of the valves and redesign, if necessary, of the shapes are planned for the Phase II effort. This process involves extensive dynamometer studies along with long lead times for testing. Potential applications for C-C materials are in all components of the combustion chamber that include pistons, valves, valve guides, rocker arms and connecting rods. ***