Compressor assembly with hybrid airfoil and auxiliary magnetic bearings
AssigneeHamilton Sundstrand Corporation
InventorsViktor Kilchyk, Brent J. Merritt
Life of this patent
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Abstract
A compressor assembly is provided and includes a fluid pathway, a compressor disposed and configured to compress fluid flowing along the fluid pathway and a motor configured to drive operations of the compressor. The motor includes one or more hybrid airfoil bearings to support the shaft within a housing. Each of the one or more hybrid airfoil bearings includes airfoil bearing components including a top foil immediately surrounding the shaft and additional components and passive magnetic bearing components integrated into the shaft and the additional components of the airfoil bearing components to remove a static load of the shaft on the top foil.
Claims20
A compressor assembly, comprising:
- a fluid pathway;
- a compressor disposed and configured to compress fluid flowing along the fluid pathway;
- and
- a motor configured to drive operations of the compressor and comprising one or more hybrid airfoil bearings to support a shaft within a housing, each of the one or more hybrid airfoil bearings comprising:
- coaxial airfoil bearing components and passive magnetic bearing components,
- the airfoil bearing components comprising a top foil immediately surrounding the shaft and additional components, and
- the passive magnetic bearing components being integrated into the shaft and the additional components of the airfoil bearing components to remove a static load of the shaft on the top foil.
A compressor assembly, comprising:
- a fluid pathway;
- a compressor disposed along the fluid pathway and configured to compress fluid flowing along the fluid pathway;
- and
- a motor coupled with the compressor and configured to drive operations of the compressor, the motor comprising:
- a housing;
- a shaft, which is rotatable within the housing and which is connected with the compressor to drive compressor rotation;
- and
- one or more hybrid airfoil bearings to support the shaft within the housing, each of the one or more hybrid airfoil bearings comprising:
- coaxial airfoil bearing components and passive magnetic bearing components,
- the airfoil bearing components comprising a top foil immediately surrounding the shaft and additional components, and
- the passive magnetic bearing components being integrated into the shaft and the additional components of the airfoil bearing components to remove a static load of the shaft on the top foil.
A vapor compression cycle, comprising:
- a compressor to compress fluid to generate superheated vapor;
- a condenser to condense the superheated vapor into liquid;
- an expansion valve to expand the liquid into a liquid and vapor mixture;
- an evaporator to evaporate the liquid into vapor for reception by the compressor;
- and
- a motor to drive operations of the compressor, the motor comprising a housing, a shaft connected to the compressor and one or more hybrid airfoil bearings to support the shaft within the housing,
- wherein each of the one or more hybrid airfoil bearings comprises:
- coaxial airfoil bearing components and passive magnetic bearing components,
- the airfoil bearing components comprising a top foil immediately surrounding the shaft and additional components, and
- the passive magnetic bearing components being integrated into the shaft and the additional components of the airfoil bearing components to remove a static load of the shaft on the top foil.
(canceled)
Dependencies are inferred from the claim text.