Annular bearing compartment

Details Annular bearing compartment Annular bearing compartment

1994-05-17

1995-05-16

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384277, F16C 3700

Patent

active

054154782

ABSTRACT:
The present invention relates to a bearing compartment for a turbomachine such as a gas turbine engine. The compartment includes a bearing compartment, to which is attached, on its front and rear sides, covers 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 surrounding an oil cavity in the compartment; the bearing which supports a shaft extending through the engine is supported by the bearing. The compartment also includes a plurality of axially extending and circumferentially buffer air cavities surrounding the sealed air cavities, thereby providing additional insulate protection to the oil cavity.

REFERENCES:
patent: 4715732 (1987-12-01), Sanders
patent: 4728838 (1988-03-01), Mandel et al.
patent: 5207512 (1993-05-01), Grant et al.
patent: 5358338 (1994-10-01), Komiya

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