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US 7,097,413 B2Granted
Bearing support
AssigneeUnited Technologies Corporation
InventorKeven G. VanDuyn
Life of this patent
Estimating the term…
Abstract
To further isolate imbalances in a rotating structure such as a gas turbine engine, an effective length between two bearings may exceed an actual length. This may be achieved via one or more tapering bearing supports associated with at least one of the bearings.
Claims12
A turbine engine comprising:
- a first spool;
- support structure;
- and
- a plurality of bearing systems coupling the first spool to the support structure, including:
- a first bearing system having an inner race coupled to a shaft of the first spool and an outer race coupled to the support structure;
- and
- a second bearing system aft of the first bearing system and having an inner race coupled to the shaft of the first spool and an outer race coupled to the support structure, the first spool shaft having a main body portion and forwardly diverging web having a proximal root at the main body portion and a distal portion holding the second bearing system inner race.
4 more elements
A turbine engine comprising:
- a high spool;
- a low spool;
- a non-rotating structure;
- and
- a plurality of bearing systems coupling a first spool of high and low spools to the non-rotating structure and, including:
- a first bearing system having an inner race coupled to a shaft of the first spool and an outer race coupled to the non-rotating structure by a fusible coupling;
- and
- a second bearing system aft of the first bearing system by a first length and having an outer race coupled to the non-rotating structure and an inner race coupled to the shaft of the first spool by means for providing a post-fusing effective cantilever length of the first bearing system relative to the second bearing system in excess of the first length.
5 more elements
Dependencies are inferred from the claim text.