Knowledge Resource Center for Ecological Environment in Arid Area
| 报告编号 | N20080015549 |
| Review of Engine Seal Performance and Requirements for Current and Future Army Engine Platforms. | |
| Delgado, I. R; Proctor, M. P. | |
| 英文摘要 | Sand ingestion continues to impact combat ground and air vehicles in military operations in the Middle East. The T-700 engine used in Apache and Blackhawk helicopters has been subjected to increased overhauls due to sand and dust ingestion during desert operations. Engine component wear includes compressor and turbine blades/vanes resulting in decreased engine power and efficiency. Engine labyrinth seals have also been subjected to sand and dust erosion resulting in tooth tip wear, increased clearances, and loss in efficiency. For the current investigation, a brief overview is given of the history of the T-700 engine development with respect to sand and dust ingestion requirements. The operational condition of labyrinth seals taken out of service from 4 different locations of the T-700 engine during engine overhauls are examined. Collaborative efforts between the Army and NASA to improve turbine engine seal leakage and life capability are currently focused on noncontacting, low leakage, compliant designs. These new concepts should be evaluated for their tolerance to sand laden air. Future R&D efforts to improve seal erosion resistance and operation in desert environments are recommended |
| 英文关键词 | Sands Engine parts Ingestion(Engines) Erosion Wear Labyrinth seals Turbine engines Corrosion resistance Power efficiency Military operations Middle east |
| 出版年 | 2008 |
| 语种 | 英语 |
| 国家 | United States |
| URL | http://r.cnki.net/KCMS/detail/detail.aspx?DbCode=KJBG&dbname=KJBGW&filename=5a00359231c97d1c389718fc |
| 来源机构 | National Aeronautics and Space Administration |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/273595 |
| 推荐引用方式 GB/T 7714 | Delgado, I. R,Proctor, M. P.. Review of Engine Seal Performance and Requirements for Current and Future Army Engine Platforms.,2008. |
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