Methode und Einrichtung zur Beeinflussung von Lagerbelastungen

• Main Authors: HANDELSMAN, STEVEN KEITH, PRZYTULSKI, JAMES CHARLES, WILLEY, JAMES ELBERT, HAASER, FREDERIC GARDNER, CECCOPIERI, FERNANDO
• Format: Patent
• Language: German
• Published: 13.12.2007
• Subjects: ACTUATING-FLOATS; AIR INTAKES FOR JET-PROPULSION PLANTS; BEARINGS; BLASTING; COCKS; COMBUSTION ENGINES; CONTROLLING; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; DEVICES FOR VENTING OR AERATING; 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; PHYSICS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; REGULATING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; STEAM ENGINES; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

An orifice plate assembly (82) for a gas turbine engine (10) that facilitates extending a useful life of bearing assemblies (70) within the gas turbine engine is described. Each orifice plate assembly is coupled in flow communication with an engine air source (74), and includes a first body portion (100) and a second body portion (102). The first body portion includes a channel (108) and a flow opening (130). The channel is sized to receive the second body portion, such that the second body portion may slide with respect to the first body portion. The orifice plate assembly is adjustable after engine shutdown to regulate bearing loading.