JPH0429852Y2 - - Google Patents
Info
- Publication number
- JPH0429852Y2 JPH0429852Y2 JP15366587U JP15366587U JPH0429852Y2 JP H0429852 Y2 JPH0429852 Y2 JP H0429852Y2 JP 15366587 U JP15366587 U JP 15366587U JP 15366587 U JP15366587 U JP 15366587U JP H0429852 Y2 JPH0429852 Y2 JP H0429852Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- sound
- duct
- filter box
- noise
- 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
- 230000000694 effects Effects 0.000 description 16
- 230000030279 gene silencing Effects 0.000 description 7
- 239000011358 absorbing material Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000001743 silencing effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15366587U JPH0429852Y2 (en]) | 1987-10-07 | 1987-10-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15366587U JPH0429852Y2 (en]) | 1987-10-07 | 1987-10-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6456813U JPS6456813U (en]) | 1989-04-10 |
| JPH0429852Y2 true JPH0429852Y2 (en]) | 1992-07-20 |
Family
ID=31429711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15366587U Expired JPH0429852Y2 (en]) | 1987-10-07 | 1987-10-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0429852Y2 (en]) |
-
1987
- 1987-10-07 JP JP15366587U patent/JPH0429852Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6456813U (en]) | 1989-04-10 |
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