Axial-flow fan motor
US5264748A · kind A · utility
22Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1993 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Jan 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S384/902
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sleeve-type plain bearing of an axial-flow fan motor, made of sintered oilless metal, for bearing a rotation of a rotor has plural protrusions on a thrust bearing surface in a direction vertical to an axial direction of the rotor, and thereby lubricant impregnated in the sintered oilless metal is always supplied in spaces formed by the thrust bearing surface, the protrusions and a thrust plate provided on the rotation shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.