BEARING STRUCTURE UNCOUPLING DEVICE

• Main Authors: DECERLE, ERIC NICOLAS, SANCHEZ, ARNAUD, DUCHATELLE, THIERRY FRANCOIS MAURICE, MOLINARI, OLIVIER MICHAEL
• Format: Patent
• Language: English; French
• Published: 24.11.2015
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; 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; STEAM ENGINES; THERMAL INSULATION IN GENERAL; WEAPONS

L'invention porte sur un dispositif de découplage d'un support de palier (7) dans une turbomachine, ledit support de palier (7) comportant une partie amont (1) et une partie aval (2) comprenant respectivement une pluralité d'orifices amont (10) et aval (20) traversés par des vis fusibles (3). Il est caractérisé en ce qu'il comporte, entre chaque orifice amont (10) et la vis fusible (3) le traversant, un jeu (4) évitant tout contact entre l'orifice amont (10) et la vis fusible (3), et en ce que la partie amont (1) et la partie aval (2) du support de palier (7) sont en contact entre elles par des surfaces formant un moyen de double centrage (14, 24, 15, 25). The device has a double centering unit formed by surfaces through which an upstream part (1) and a downstream part (2) of a bearing support are in contact between each other. A gap (4) is formed between an upstream orifice (10) formed in the upstream part and a fusible screw (3) for avoiding all contacts between the upstream orifice and the fusible screw. The gap is formed by a circular recess (11) realized in the upstream orifice. The centering unit is constituted by circular grooves and circular ribs.