Lubricant supply and return system for the center bearing assembly and the rear bearing assembly of a marine or industrial gas turbine engine

摘要

A lubrication supply and return system for the center and rear bearing assemblies of a marine or industrial gas turbine engine. The supply line for both bearing assemblies and the return lines for the rear bearing assembly are mounted off-engine in an elongated tray which is supported by the engine and is capable of forward thermal expansion. The tray mounted supply line is connected to the supply pump and the center bearing assembly by flexible hoses. The tray supported return lines are attached to the scavenge pump by flexible hoses. The return lines from the center bearing assembly to the scavenge pump have flexible hose portions supported by the tray.