What is the primary purpose of the gas turbine engine lube oil system?

The primary purpose of the gas turbine engine lube oil system is to provide cooling oil to bearings, gears, and splines. The lube oil system plays a crucial role in maintaining the operational integrity and efficiency of the engine. It ensures that all moving parts are adequately lubricated to reduce friction, which helps prevent wear and tear on components, prolonging their life and reliability.

Additionally, the lube oil system also helps to dissipate heat generated by these components during operation, preventing overheating and potential damage. While certain functions of a gas turbine engine require lubrication, the main focus of the lube oil system is on cooling and protecting the critical moving parts, thus ensuring smooth operation and optimal performance of the gas turbine engine.