Sound absorber for blower
US5894114A · kind A · utility
4Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1997 |
| Grant date | Apr 13, 1999 |
| Priority date | — |
| Expiry date | Aug 6, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/664
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A sound absorber for a blower has a housing having an air inlet opening, an axially arranged air outlet passage, and a substantially spiral-shaped passage which connects the air inlet opening with the air outlet passage, a sound absorption material which forms walls of the substantially spiral-shaped passage, and reflector which at least partially surrounds the air outlet passage and screens the air outlet passage in direction of an air inlet opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.