Patent ID: 8401760
Filing Date: 2013-03-19
Classification: F01D,F02C,F05D

Abstract:
1. A method of monitoring oil consumption in a gas turbine engine, comprising the steps of: sensing reservoir oil level when the gas turbine engine is not running; sensing reservoir oil temperature when the gas turbine engine is not running; sensing reservoir attitude when the gas turbine engine is not running; determining current gas turbine engine system oil quantity based on at least the sensed reservoir oil level, the sensed reservoir oil temperature, the sensed reservoir attitude, and a predetermined engine retention amount, the predetermined engine retention amount at least substantially equal to an amount of oil retained in the gas turbine engine after the gas turbine engine has been started at least once and when the gas turbine engine is not running; determining that a predetermined event has occurred; automatically calculating an average gas turbine engine system oil quantity after the predetermined event has occurred; and determining gas turbine engine system oil consumption rate from a plurality of calculated average oil quantities.