JPS595783Y2 - 建造物用消音通気装置 - Google Patents
建造物用消音通気装置Info
- Publication number
- JPS595783Y2 JPS595783Y2 JP174778U JP174778U JPS595783Y2 JP S595783 Y2 JPS595783 Y2 JP S595783Y2 JP 174778 U JP174778 U JP 174778U JP 174778 U JP174778 U JP 174778U JP S595783 Y2 JPS595783 Y2 JP S595783Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- sound
- inner cylindrical
- wall
- inner cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009423 ventilation Methods 0.000 title claims description 22
- 230000003584 silencer Effects 0.000 title 1
- 238000005192 partition Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 230000030279 gene silencing Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Building Environments (AREA)
- Ventilation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP174778U JPS595783Y2 (ja) | 1978-01-10 | 1978-01-10 | 建造物用消音通気装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP174778U JPS595783Y2 (ja) | 1978-01-10 | 1978-01-10 | 建造物用消音通気装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54106012U JPS54106012U (enrdf_load_stackoverflow) | 1979-07-26 |
| JPS595783Y2 true JPS595783Y2 (ja) | 1984-02-22 |
Family
ID=28804173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP174778U Expired JPS595783Y2 (ja) | 1978-01-10 | 1978-01-10 | 建造物用消音通気装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS595783Y2 (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6117308Y2 (enrdf_load_stackoverflow) * | 1980-09-18 | 1986-05-27 | ||
| JP2009243113A (ja) * | 2008-03-31 | 2009-10-22 | Kurabo Ind Ltd | 換気孔の吸音構造 |
-
1978
- 1978-01-10 JP JP174778U patent/JPS595783Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54106012U (enrdf_load_stackoverflow) | 1979-07-26 |
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