Patent ID: 8261527

Claim:
A lubricant supply system for a gas turbine engine comprising: a lubricant pump delivering lubricant to an outlet line, said outlet line splitting into at least a hot line and into a cool line, said hot line being directed primarily to locations associated with an associated gas turbine engine that are not intended to receive cooler lubricant, and said cool line being directed through at least one heat exchanger at which lubricant is cooled, and said cool line then being routed to at least a journal bearing in a fan drive gear system of the associated gas turbine engine; said at least one heat exchanger including at least an air/oil cooler wherein air is pulled across said air/oil cooler to cool lubricant, and said air/oil cooler being provided with an ejector tapping compressed air from a compressor section to increase airflow across the air/oil cooler; and at least a portion of the lubricant in said cool line passing through a first fuel/oil cooler configured to cool the lubricant using fuel, leading to a combustion section of the associated gas turbine engine, and the lubricant in said hot line not passing through said first fuel/oil cooler.