Abstract

A high speed centrifugal compressor for compressing fluids includes a permanent magnet synchronous motor (PMSM) having a hollow shaft, the being supported on its ends by ball bearing supports. A permanent magnet core is embedded inside the shaft. The PMSM includes a rotor including at least one impeller secured to the shaft or integrated with the shaft as a single piece. The rotor is a high rigidity rotor providing a bending mode speed of at least 100,000 RPM which adventageously permits implementation of relatively low-cost ball bearing supports.

Document Type

Patent

Patent Number

US 7,942,646

Application Serial Number

11/752,021

Issue Date

5-17-2011

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

College of Engineering and Computer Science (CECS)

Department

Mechanical and Aerospace Engineering

Allowance Date

1-20-2011

Filing Date

5-22-2007

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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