Methods and systems for preventing lube oil leakage in gas turbines

Methods and systems for preventing lube oil leakage in gas turbines

Sump pressurization system comprising an off-board source (71) of pressurized air is provided to supplement pressurized air to a bearing sump arrangement 32 when the operating conditions of th gas turbine engine (10) are such that the on-board pressurized air source, e.g. the compressor of the gas g...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LAZZERI MARC, MACIEJ HOFMAN, BEI SIMONE, MARCUCCI DANIELE
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Beschreibung
Zusammenfassung:Sump pressurization system comprising an off-board source (71) of pressurized air is provided to supplement pressurized air to a bearing sump arrangement 32 when the operating conditions of th gas turbine engine (10) are such that the on-board pressurized air source, e.g. the compressor of the gas generator, are such that the air pressure generated thereby is insufficient to pressurize a sump pressurization cavity (45). Gas turbine engine (10) comprising such a sump pressurization system. Corresponding method for operating a gas turbine engine (10) to facilitate reducing leakage of lubrication oil is also provided.