Fan with motor cooling enhancement
US4838760A · kind A · utility
10Cited by
20References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1987 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Apr 27, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/5806
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan (10) adapted to be driven by an electrical motor (12), the motor of the type having openings (14) to permit the flow of air therethrough to cool internal components of the motor. The fan comprising a cup-shaped hub (20) adapted to be driven by the motor and including a plurality of arcuately shaped webs (44, 70) for inducing the flow through the motor and through a plurality of openings (40) formed in a axially extending wall (28) of the hub (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.