1969-02-01

Lubricant Evaluation and Systems Design for Aircraft Gas Turbine Engines 690424

Design of the oil system of aircraft gas turbine engines must keep pace with the ever improving performance which results in temperatures within the engine being continually raised. It is necessary to prevent the increased temperatures from causing rapid deterioration of the oil or failures of the bearings. Some of the design features of the Rolls-Royce RB 211 which are relevant to this requirement are presented, together with methods used to evaluate and predict the performance of lubricants under operational conditions.

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