Shaft cooler for a tool motor spindle
US8684643B2 · kind B2 · utility
1Cited by
17References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2008 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Jun 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309464
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A shaft cooler (1) for a tool motor spindle (2), which has a rotating shaft (3), a static lance (4), and at least one coolant loop (7), which comprises a coolant inlet (5) and a coolant outlet (6), said shaft cooler being implemented such that the flow of the coolant from the static lance (4) into the rotating shaft (3) is performed via a flow path that includes radially-extending cooling holes (31) to cause the coolant to flow from a radially inside location to a radially outside location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.