Damping systems for use in engines
AssigneeHoneywell International Inc.
InventorsDouglas Spencer, Mohsiul Alam, Griff Kinsinger
Life of this patent
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Abstract
Damping systems and engines including the damping systems are provided. In one embodiment, and by way of example only, the damping system includes a rotor, a bearing assembly mounted to the rotor, a spring cage disposed around the bearing assembly, an axially-extending housing surrounding the spring cage, a first squeeze film damper formed between the bearing assembly and the spring cage, and a second squeeze film damper formed between the spring cage and the axially-extending housing.
Claims20
A damping system for use in an engine, the damping system comprising:
- a rotor;
- a bearing assembly mounted to the rotor;
- a spring cage disposed around the bearing assembly;
- an axially-extending housing surrounding the spring cage;
- a first squeeze film damper formed between the bearing assembly and the spring cage;
- and
- a second squeeze film damper formed between the spring cage and the axially-extending housing.
A damping system for use in an engine, the damping system comprising:
- a rotor;
- a bearing assembly mounted to the rotor including an inner race, an outer race, and a rolling element, the inner race coupled to the rotor, the outer race surrounding the inner race and having an outer surface, and the rolling element disposed between the inner race and the outer race;
- a spring cage at least partially surrounding the bearing assembly outer race and including an inner surface and an outer surface, the inner surface of the spring cage spaced apart from the outer surface of the outer race to define a first clearance therebetween;
- an axially-extending housing surrounding at least a portion of the spring cage and having an inner surface spaced apart from the outer surface of the spring cage to define a second clearance;
- and
- a first seal and a second seal disposed within the second clearance.
An engine, comprising:
- an engine case;
- a compressor section disposed within the engine case;
- a rotor extending through the compressor section;
- a bearing assembly mounted to a portion of the rotor;
- a spring cage disposed around the bearing assembly;
- an axially-extending housing surrounding the spring cage;
- a first squeeze film damper formed between the bearing assembly and the spring cage;
- and
- a second squeeze film damper formed between the spring cage and the axially-extending housing.
Dependencies are inferred from the claim text.