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US 6,747,383 B2Granted
Generator with hydraulically mounted stator rotor
AssigneeHoneywell International Inc.
InventorsGerald E. Tornquist, Gregor McDowall
Life of this patent
Estimating the term…
Abstract
A high speed generator with a hydraulic rotor mounting system that dampens rotor vibrations at the rotor's critical speeds. Oil is supplied to a gap formed between the outer race of the rotor bearing assembly and the bearing liner. The oil provides soft bearing support for, and viscous damping of, the rotor.
Claims27
A mounting system for hydraulically mounting a high speed generator shaft, comprising:
- a bearing assembly having a bearing inner race, a bearing outer race and bearings therebetween, the bearing inner race concentrically mounted on the shaft;
- a cylindrical bearing liner mounted around the bearing assembly and configured to substantially inhibit relative rotation therebetween, the bearing liner having an inner circumferential surface and an outer circumferential surface and dimensioned to form a gap between the bearing outer race and the bearing liner inner circumferential surface;
- and
- at least one inlet oil port formed in the bearing liner and extending between the bearing liner inner circumferential surface and the bearing liner outer circumferential surface, whereby oil from a pressurized oil source is fed into the gap.
1 more element
A mounting system for a high speed generator shaft, comprising:
- a bearing assembly having a bearing inner race, a bearing outer race and bearings therebetween, the bearing inner race concentrically mounted on the shaft, the bearing outer race having a first slot formed therein;
- a cylindrical bearing liner mounted around the bearing assembly, the bearing liner having an inner circumferential surface and an outer circumferential surface and dimensioned to form a gap between the bearing outer race and the bearing liner inner circumferential surface;
- at least one inlet oil port formed in the bearing liner and extending between the bearing liner inner circumferential surface and the bearing liner outer circumferential surface, whereby oil from a pressurized source is fed into the gap;
- a first cavity extending between the bearing liner inner circumferential surface and the bearing liner outer circumferential surface;
- a load assembly mounted within the bearing liner and positioned longitudinally adjacent to the bearing assembly, the load assembly having a notch formed on an outer surface thereof;
- and
- a pin having at least a first end inserted within the cavity and at least a second end inserted within the notch.
4 more elements
A high speed generator, comprising:
- a housing;
- a stator assembly mounted within the housing;
- a rotor located within at least a portion of the stator assembly, the rotor having a shaft for rotation of the rotor about an axis;
- and
- wherein the rotor shaft is mounted using at least one hydraulic mount assembly that includes:
- a bearing assembly having a bearing inner race and a bearing outer race, the bearing inner race concentrically mounted on the rotor shaft,
- a cylindrical bearing liner mounted around the bearing assembly and configured to substantially inhibit relative rotation therebetween, the bearing liner having an inner circumferential surface and an outer circumferential surface and dimensioned to form a gap between the bearing outer race and the bearing liner inner circumferential surface;
- and
- at least one inlet oil port formed in the bearing liner and extending between the bearing liner inner circumferential surface and the bearing liner outer circumferential surface, whereby oil from a pressurized oil source is fed into the gap.
6 more elements
Dependencies are inferred from the claim text.