A bearing chamber apparatus (2) comprising a bearing chamber (4) having one or more seals (7) which seal an interior (5) of the chamber from an exterior (24) of the chamber; and further comprising: a pump in fluid communication with the interior of the cha...

A mechanism such as a rotor of an open rotor gas turbine engine comprises a rotor assembly 100 rotatable about a rotational axis A. The rotor assembly 100 has a fluid pathway 110 including a pump 114 carried by the first rotor assembly 100 for driving flui...

A cooling system for turbine starter lubricant includes one or more outflow transfer passages (54) extending from the turbine starter (10) to a secondary component (40). At least one heat exchange passage (56) affixed at a first end to an end of an outflow...

A shaft for a gas turbine engine is provided that includes a first shaft section (106), a second shaft section (108), a first flexible linkage (110), and a second flexible linkage (112). The first shaft section (106) extends between a forward axial end (11...

A star gear train (30) for use in a gas turbine engine (10) includes a sun gear (36), a ring gear (38), a plurality of star gears (40) and a coupling system. The sun gear (36) is rotatable by a shaft (46). The ring gear (38) is secured to a ring gear shaft...

A system and method of filtering lubricant in a lubricant supply system are provided. Lubricant from a lubricant source (102) is directed into and through a coarse filter (124) that is configured to remove, from the lubricant, particulate of at least a fir...

An assembly for capturing lubricating liquid from a fan drive gear system (36) of a gas turbine engine (10) includes a gutter (56) and an auxiliary reservoir (58). The gutter is positioned radially outward from a centerline axis (C) of the gear system for ...

A turbine essentially comprises a mechanical generating system including a combustion chamber (2) providing useful mechanical work on a high-speed shaft (8), a speed step-down system (18-20) for receiving rotational energy from the high-speed shaft and an ...

Oil slinger for incorporation in a system for sealing the passage o f a rotating shaft (3) through an opening. The oil control device comprises an annular member (10) for rotation with said shaft (3) and provided with a circumferentially spaced array of pa...