Torque tube bearing assembly

A bearing assembly (80) for use in a gas turbine engine to rotatably mount a torque tube in an access hole extending through a fan duct. The torque tube connects a variable stator vane bell crank positioned inside the fan duct to an actuator positioned outside the fan duct. The bearing assembly (80)...

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Bibliographische Detailangaben
Hauptverfasser:	BATHORI, JULIUS, HEADLEY, MITCHELL JAY, PARK, SANG YENG
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BEARINGS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ELEMENTS OR CRANKSHAFT MECHANISMS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GAS-TURBINE PLANTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A bearing assembly (80) for use in a gas turbine engine to rotatably mount a torque tube in an access hole extending through a fan duct. The torque tube connects a variable stator vane bell crank positioned inside the fan duct to an actuator positioned outside the fan duct. The bearing assembly (80)includes a bearing (60) having a spherical external engagement surface (62) and a housing (70) having a flange and an annular interior surface (72) having an inner edge (74) and an outer edge (76). The interior surface (72) is sized and shaped for rotatably receiving the spherical external engagement surface (62) of the bearing (60) so the spherical engagement surface (62) and the annular interior surface (72) make contact along an annular contact area (100) centered on a contact plane (102) lying between the inner and outer edges (76). The contact plane (102) is tilted with respect to the flange at an angle (104) greater than five degrees.