DK142467B - Lyddæmper. - Google Patents
Lyddæmper. Download PDFInfo
- Publication number
- DK142467B DK142467B DK251275A DK251275A DK142467B DK 142467 B DK142467 B DK 142467B DK 251275 A DK251275 A DK 251275A DK 251275 A DK251275 A DK 251275A DK 142467 B DK142467 B DK 142467B
- Authority
- DK
- Denmark
- Prior art keywords
- sound
- path
- gas
- opening
- attenuation
- Prior art date
Links
- 238000005192 partition Methods 0.000 claims description 16
- 239000011358 absorbing material Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 230000002238 attenuated effect Effects 0.000 claims description 7
- 239000012528 membrane Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 7
- 230000035699 permeability Effects 0.000 description 6
- 239000011491 glass wool Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000011093 chipboard Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000030279 gene silencing Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Landscapes
- Building Environments (AREA)
- Exhaust Silencers (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7407368 | 1974-06-05 | ||
| SE7407368A SE382338B (sv) | 1974-06-05 | 1974-06-05 | Ljuddempande anordning |
| SE7415822 | 1974-12-17 | ||
| SE7415822A SE389528B (sv) | 1974-12-17 | 1974-12-17 | Ljuddempande anordning |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK251275A DK251275A (enrdf_load_html_response) | 1975-12-06 |
| DK142467B true DK142467B (da) | 1980-11-03 |
| DK142467C DK142467C (enrdf_load_html_response) | 1981-03-30 |
Family
ID=26656489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK251275A DK142467B (da) | 1974-06-05 | 1975-06-04 | Lyddæmper. |
Country Status (2)
| Country | Link |
|---|---|
| DK (1) | DK142467B (enrdf_load_html_response) |
| NO (1) | NO138262C (enrdf_load_html_response) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0778399A1 (en) * | 1995-12-08 | 1997-06-11 | United Parts Läreda AB | Resonator |
-
1975
- 1975-06-04 NO NO751954A patent/NO138262C/no unknown
- 1975-06-04 DK DK251275A patent/DK142467B/da unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0778399A1 (en) * | 1995-12-08 | 1997-06-11 | United Parts Läreda AB | Resonator |
Also Published As
| Publication number | Publication date |
|---|---|
| NO751954L (enrdf_load_html_response) | 1975-12-08 |
| DK142467C (enrdf_load_html_response) | 1981-03-30 |
| DK251275A (enrdf_load_html_response) | 1975-12-06 |
| NO138262C (no) | 1978-08-02 |
| NO138262B (no) | 1978-04-24 |
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