Fan
US5788568A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Aug 20, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D25/166
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan comprising: blowing units, each including a squarely hollow casing, an electric motor incorporated into the casing and an axial impeller coupled to the motor for generating an air flow from an inlet toward nozzles; the casing having one end opened to form the inlet and the opposite end opened to form the nozzles; and a guide which projects into the casing to arrange the nozzles in a parallel pattern, in a slit shape and in rows; wherein the blowing units are coupled together at adjacent sides thereof to be arranged in a row, each unit has the inlet provided with a bellmouth which surrounds impeller, and a space between each bellmouth and each casing is separated from an air flow path with the air flow generated by the impeller passing therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.