METHOD AND SYSTEM TO ENSURE FULL OIL TUBES AFTER GAS TURBINE ENGINE SHUTDOWN

A gas turbine engine (20) includes a bearing compartment (62) that has an inlet (86). A supply line (72) splits into a supply conduit (78) and a reservoir conduit (80) that are fluidly parallel to one another for a length. The reservoir conduit (80) fluidly rejoins the supply conduit (78) at a junct...

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Bibliographische Detailangaben
Hauptverfasser:	AVIS, Thomas Bruce, PARNIN, Francis
Format:	Patent
Sprache:	eng ; fre ; ger
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:	A gas turbine engine (20) includes a bearing compartment (62) that has an inlet (86). A supply line (72) splits into a supply conduit (78) and a reservoir conduit (80) that are fluidly parallel to one another for a length. The reservoir conduit (80) fluidly rejoins the supply conduit (78) at a junction. The supply conduit (78) is fluidly connected to the inlet (86), and the reservoir conduit (80) includes a flow restrictor (82) upstream from the junction. A main pump (66) is fluidly connected to the supply line (72) and is configured to supply a lubricant to the bearing compartment (62) through the supply line (72) and supply and reservoir conduits (78, 80) in an operating state. The main pump (66) has a non-operating state in which the reservoir conduit (80) is configured to slowly refill the supply conduit through the flow restrictor (84).