Back to results
US 2020/0355194 A1Published application
Seal assembly for compressor
AssigneeCarrier Corporation
InventorVishnu M. Sishtla
Life of this patent
Estimating the term…
Abstract
A seal assembly for a compressor includes at least one impeller. At least one seal land is associated with the impeller including a plurality of radially stepped surfaces. A seal is associated with each of at least one seal lands. The seal includes a plurality of radially stepped projections corresponding to the plurality of radially stepped surfaces on at least one seal land. At least one actuator is configured to move at least one seal land relative to the seal.
Claims20
A seal assembly for a compressor comprising:
- at least one impeller;
- at least one seal land associated with the impeller including a plurality of radially stepped surfaces;
- a seal associated with each of the at least one seal lands, wherein the seal includes a plurality of radially stepped projections corresponding to the plurality of radially stepped surfaces on the at least one seal land;
- and
- at least one actuator configured to move the at least one seal land relative to the seal.
2 more elements
A compressor assembly comprising:
- at least one impeller;
- a shaft in driving engagement with the at least one impeller;
- at least one electromagnetic bearing supporting the shaft;
- and
- at least one seal assembly associated with the at least one impeller including:
- at least one seal land associated with the at least one impeller including a plurality of radially stepped surfaces;
- a seal associated with each of the at least one seal lands, wherein the seal includes a plurality of radially stepped projections corresponding to the plurality of radially stepped surface on the at least one seal land;
- and
- at least one actuator configured to create movement between the at least one seal land and the seal.
6 more elements
A method of operating a compressor comprising:
- supporting a shaft in the compressor with at least one electromagnetic bearing;
- determining a seal clearance based on an operating condition of the compressor;
- and
- increasing the seal clearance based on the operating condition by creating axial movement between a seal land attached to one of an impeller and a housing assembly and a seal attached to the other of the impeller and the housing assembly.
1 more element
Dependencies are inferred from the claim text.