Vortex air cleaner assembly with acoustic attenuator
US4050913A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1975 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Apr 23, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C7/052
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vortex air cleaner and acoustic attenuator assembly is provided having an array of vortex air cleaners which remove contaminant particles from influent air, and an array of spaced acoustic sheets defining passages therebetween for reception of clean effluent air from selected groups of adjacent vortex air cleaners in the array, the sheets being shaped and spaced to deflect such effluent air and sound pressure waves at least once from the acoustic surface of the sheets, thereby absorbing the maximum sound in the preferred frequency range of 8000 Hertz and reducing the imposed sound pressure level in which the vortex air cleaner assembly operates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.