Liquid-cooled rotor of electric machines and method of production
US4016442A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1974 |
| Grant date | Apr 5, 1977 |
| Priority date | — |
| Expiry date | Dec 16, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/197
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Liquid-cooled rotor for electric machines including shaft means formed with axial bores for feeding and withdrawing cooling liquid, and radial bores connecting the axial bores to cooling-liquid collecting chambers surrounding the shaft means, thin-walled tubes of corrosion-resistant material forming a lining for the cooling-liquid bores, the tubes being in firm rolled-in engagement with the surfaces defining the bore, along the entire lengths thereof, and diverting members fitted, into the axial bores at locations whereat the radial bores divert from the axial bores, the diverting members connecting the axial bores, respectively, with the radial bores; and method of producing the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.