SCAVENGE PUMP SYSTEM AND METHOD

摘要

A scavenge pump system for scavenging oil from one or more bearings of a gas turbine engine is disclosed. The scavenge pump system comprises a turbine configured to extract motive power from oil in a pressurized oil circuit carrying oil to the one or more bearings and a scavenge pump powered by the turbine and having an inlet and an outlet each in flow communication with a scavenge oil circuit carrying oil from the one or more bearings. The scavenge oil circuit is separated from the pressurized oil supply circuit between the turbine and the scavenge pump.