Patent ID: 11892031
Assignee: TRANE INTERNATIONAL INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 9:
10. A heat transfer circuit, comprising:
a compressor including:
a shaft rotatable to compress a working fluid,
a foil gas bearing for supporting the shaft while rotating, the foil gas bearing including a top foil and a bump foil, and
a backup bearing located at a different location along the shaft than the foil gas bearing, the backup bearing configured to support the shaft while rotating when the shaft compresses the bump foil by a predetermined amount, and the bump foil being closer to the shaft than the backup bearing when the shaft is spaced apart from the foil gas bearing;

a condenser for cooling the working fluid compressed by the compressor;
an expander for expanding the working fluid cooled by the condenser; and
an evaporator for heating the working fluid expanded by the expander with a process fluid.