Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781793900982
Total Pages : 26 pages
Book Rating : 4.9/5 (9 download)
Book Synopsis A Review of Engine Seal Performance and Requirements for Current and Future Army Engine Platforms by : National Aeronautics and Space Adm Nasa
Download or read book A Review of Engine Seal Performance and Requirements for Current and Future Army Engine Platforms written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-13 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 Delgado, Irebert R. and Proctor, Margaret P. Glenn Research Center WBS 561581.02.08.03.15.02