Use of thermal insulation for noise abatement
US7086857B2 · kind B2 · utility
3Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2004 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Jul 20, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H3/105
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a residential furnace having a layered insulation material on the inner walls of the heat exchanger compartment, the inner aluminum foil layer has a plurality of holes formed therein in order to allow for the outer layer to absorb the sound within the heat exchanger compartment and thereby reduce the noise emanating from the furnace. Both the density and size of the holes are optimized to maximize the sound absorption performance over the particular frequency ranges that are characteristic of the furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.