Acoustic filter having acoustic isolation of internal flow element
US5016730A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1990 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Jan 17, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2490/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An acoustic filter in which the internal flow element is acoustically decoupled from the surrounding vessel to lower noise emanating from the filter by securing the filter bulkheads to the internal flow element rather than welding to the vessel wall. The connection of the bulkhead to the vessel is mechanically discontinuous and reduced vibration transmission to the vessel from the internal flow element is obtained. The internal flow element is a unitary body with channels which are readily formed. The filter vessel is better able to move relative to the bulkheads in response to pressure and temperature changes with the invention design.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.