Air cooled machine and cooling fan
US4399379A · kind A · utility
8Cited by
10References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1980 |
| Grant date | Aug 16, 1983 |
| Priority date | — |
| Expiry date | Dec 19, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan assembly has a sealing ring which rotatably fits with a similar feature on a machine casting when the fan is assembled to the machine to provide a labyrinth type seal which is maintained over a wide variation and axial gap to inhibit the flow of air bypassing the normal flow through the machine so that the fan pumps greater quantities of air through the machine for improved cooling of all elements therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.