Gas turbine architecture
AssigneesROLLS-ROYCE plc, Rolls-Royce Deutschland Ltd & Co KG
InventorsGideon Daniel VENTER, Michael John MOUNTNEY
Life of this patent
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Abstract
A geared architecture for a gas turbine comprising an output shaft for connection with a fan, an input shaft and a gearbox connecting the input shaft with the output shaft. The gearbox has a forward planet carrier plate supported by a forward radially fixed bearing structure and a rearward planet carrier plate supported by a rearward radially fixed bearing structure. By supporting the carrier plates on radially fixed bearing structures the planet carriers can rotate about their own axis to lower vibration and mesh forces within the gearbox.
Claims17
A geared architecture for a gas turbine, comprising:
- an output shaft for connection with a fan;
- an input shaft;
- a gearbox connecting the input shaft with the output shaft, the gearbox having
- a forward carrier supported by a forward radially fixed bearing structure;
- and
- a rearward carrier supported by a rearward radially fixed bearing structure;
- wherein at least one of the bearing structures comprise a squeeze film damper.
A gas turbine engine having a geared architecture having
- an output shaft for connection with a fan;
- an input shaft;
- a gearbox connecting the input shaft with the output shaft, the gearbox having
- a forward carrier supported by a forward radially fixed bearing structure;
- and
- a rearward carrier supported by a rearward radially fixed bearing structure;
- wherein at least one of the bearing structures comprise a squeeze film damper.
Dependencies are inferred from the claim text.