F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 25/16 (2006.01) F01D 25/12 (2006.01) F01D 25/14 (2006.01) F16C 37/00 (2006.01)
Patent
CA 2189743
The present invention relates to a bearing compartment (24) for a turbo machine such as a gas turbine engine. The compartment includes a bearing compartment (24), to which is attached, on its front and rear sides, covers (46, 48) that allow for the passage of air through the compartment as well as past the compartment. In particular, the compartment includes a plurality of axially extending and circumferentially spaced apart sealed air cavities (118, 120) surrounding an oil cavity (44) in the compartment; the bearing (26) which supports a shaft (10) extending through the engine is supported by the bearing (26). The compartment also includes a plurality of axially extending and circumferentially buffer air cavities (122, 124) surrounding the sealed air cavities (118, 120), thereby providing additional insulate protection to the oil cavity (44).
Compartiment (24) de palier destiné à une turbomachine telle qu'un moteur à turbine à gaz, sur les côtés antérieur et postérieur duquel on a fixé des enveloppes protectrices (46, 48) permettant le passage de l'air à travers le compartiment de même qu'au-delà du compartiment. Ce compartiment comprend notamment une pluralité de cavités (118, 120) à air étanches s'étendant axialement et espacées de façon périphérique les unes des autres, lesdites cavités entourant une cavité (44) d'huile située dans ce compartiment; le palier (26) qui porte un arbre (10) s'étendant à travers le moteur est supporté par l'ensemble palier. Ce compartiment comprend également une pluralité de cavités tampons (122, 124) à air qui s'étendent axialement et de façon périphérique et entourent les cavités (118, 120) à air étanches, apportant ainsi une protection supplémentaire isolante à la cavité (44) d'huile.
Matthews Anthony J.
Parkman Kenneth D.
Astle Jeffrey W.
Pratt & Whitney Canada Inc.
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