1956-01-01

DYNAMIC SEALS FOR AIRCRAFT GAS TURBINE ENGINES 560171

This paper describes some of the problems encountered in sealing various media in aircraft gas turbine engine main shaft and accessory drive applications. The major types of seals are illustrated, and the individual design and operating limits of each are discussed. The seal performance requirements for the present and near future gas turbine engines are indicated. An evaluation program directed towards the development of a seal materials combination which will be compatible for extremely high speed and high temperature operation is described and some tests results enumerated. The equipment used for testing of materials and complete seal assemblies is described and pictured.

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