Shaftless rotor construction
US6215212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Aug 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A shaftless rotor (12) for a dynamoelectric machine includes a stack (20) of ferrous laminations (22) provided with a central opening (110) extending through the stack (20) and adapted to be located on the axis of rotation (14) of the rotor (12). A sleeve (112) is located in the central opening (110) for orienting the laminations (22) with respect to one another. Manifold and vane clamping pieces (52) are located on opposite sides of the stack (20) and engage the endmost laminations (22) and the sleeve (112). A pair of spaced shaft segments (24,26) engage respective ones of the clamping pieces (52) and a single tie bolt (32) extends through the sleeve (112) between the shaft segments (24,26) to interconnect the same. The tie bolt is in tension to apply clamping force to the shaft segments (24,26) for transmittal to the clamp pieces (52) to the laminations (22) in the stack (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.