JPH0219600Y2 - - Google Patents
Info
- Publication number
- JPH0219600Y2 JPH0219600Y2 JP20036987U JP20036987U JPH0219600Y2 JP H0219600 Y2 JPH0219600 Y2 JP H0219600Y2 JP 20036987 U JP20036987 U JP 20036987U JP 20036987 U JP20036987 U JP 20036987U JP H0219600 Y2 JPH0219600 Y2 JP H0219600Y2
- Authority
- JP
- Japan
- Prior art keywords
- sound
- main plate
- blower
- impeller
- sound absorbing
- 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
- 239000011358 absorbing material Substances 0.000 claims description 27
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000002238 attenuated effect Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20036987U JPH0219600Y2 (en]) | 1987-12-28 | 1987-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20036987U JPH0219600Y2 (en]) | 1987-12-28 | 1987-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01103800U JPH01103800U (en]) | 1989-07-13 |
| JPH0219600Y2 true JPH0219600Y2 (en]) | 1990-05-30 |
Family
ID=31490778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20036987U Expired JPH0219600Y2 (en]) | 1987-12-28 | 1987-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0219600Y2 (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3264553B2 (ja) * | 1993-05-20 | 2002-03-11 | 東プレ株式会社 | 送風装置 |
-
1987
- 1987-12-28 JP JP20036987U patent/JPH0219600Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01103800U (en]) | 1989-07-13 |
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