Media transport in rotor shaft
US10965185B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2015 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jan 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/197
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor hollow shaft for a rotor of an electric machine may include a cylinder barrel that is closed off on both sides by end flanges. On each side, a shaft journal may be positioned or formed on the end flanges. At least one of the shaft journals may include an access bore that provides access to a shaft cavity surrounded by the cylinder barrel. A leadthrough element may be fitted into the access bore so as to impart a sealing action with respect to the shaft cavity. The leadthrough element may extend through the shaft cavity to the shaft journal on the other side of the cylinder barrel, where the leadthrough element may likewise be fitted so as to impart a sealing action with respect to the shaft cavity. The leadthrough element may permit the leadthrough of a liquid or gaseous medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.