Multi temperature generator and engine shared oil

A gas turbine engine system comprising:

• a gas turbine engine;
• a generator;
• an engine gearbox configured to operatively connect the gas turbine engine to the generator;
• and
• a fluid delivery system comprising:
• a reservoir comprising oil;
• a hydraulic pump in fluid communication with the reservoir;
• a heat exchanger system in fluid communication with the hydraulic pump, the generator, and the engine gearbox;
• a control system;
• and
• a set of sensor devices configured to provide
• temperature information of the oil at one or more branches of the fluid delivery system, the one or more branches comprising an inlet to the generator and an outlet of the generator,
• wherein:
• the hydraulic pump is configured to deliver the oil to the heat exchanger system;
• the heat exchanger system is configured to provide the oil according to first temperature criteria to the generator and provide the oil according to second temperature criteria to the engine gearbox;
• and
• the control system is configured to determine a health of the generator based on:
• temperature information of the oil at the inlet to the generator;
• and
• temperature information of the oil at the outlet of the generator.

A fluid delivery system comprising:

• a reservoir comprising oil;
• a hydraulic pump in fluid communication with the reservoir;
• a heat exchanger system in fluid communication with the hydraulic pump, a generator, and an engine gearbox;
• a control system;
• and
• a set of sensor devices comprising:
• a first sensor device in thermal communication with an inlet of the engine gearbox and configured to provide first temperature information of the oil at the inlet of the engine gearbox;
• a second sensor device in thermal communication with an outlet of the engine gearbox and configured to provide second temperature information of the oil at the outlet of the engine gearbox,
• wherein:
• the hydraulic pump is configured to deliver the oil to the heat exchanger system;
• the heat exchanger system is configured to provide the oil according to first temperature criteria to the generator and provide the oil according to second temperature criteria to the engine gearbox;
• and
• the control system is configured to determine a health of the engine gearbox based on:
• the first temperature information of the oil at the inlet of the engine gearbox;
• and
• the second temperature information of the oil at the outlet of the engine gearbox.