Gas blow-off attenuator
US5266754A · kind A · utility
22Cited by
5References
12Claims
0Family size
Inventor
Key dates
| Filing date | Jul 17, 1989 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Jul 17, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas blow-off noise attenuator comprising two or more perforate diffusion members through which gas is arranged to pass in succession wherein the total free area of perforation in each member increases in successive stages to ensure that sonic fluid velocity occurs through one of the stages and at any mass flow within a predetermined range from a low value up to the maximum mass flow through the unit, and wherein the pressure ratio across the final diffusion member is near but above the minimum necessary to cause sonic fluid velocity through its perforations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.