JPH0175740U - - Google Patents
Info
- Publication number
- JPH0175740U JPH0175740U JP1987171456U JP17145687U JPH0175740U JP H0175740 U JPH0175740 U JP H0175740U JP 1987171456 U JP1987171456 U JP 1987171456U JP 17145687 U JP17145687 U JP 17145687U JP H0175740 U JPH0175740 U JP H0175740U
- Authority
- JP
- Japan
- Prior art keywords
- metal
- diameter cylindrical
- cylindrical body
- diameter
- sound deadening
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Duct Arrangements (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
第１図は、本考案の１実施例を示す斜視図であ
る。第２図は、本考案の他の実施例を示す斜視図
である。第３図は、第１図の断面を示す概略図で
ある。第４図は、金属多孔質材の断面図である。
第５図は、消音効果の試験方法を示す線図である
。第６図は、圧損の測定結果を示すグラフである
。
符号の説明、１……外側面、２……内側面、３
……上板、４……中間板、５……底板、６……消
音部材、７……流れ方向、８……流通路、９……
空気室、１２……金属多孔質材、１３……エクス
パンドメタル、１４……金属繊維、１５……テス
トボツクス、１６……グラスウール、１７……ス
ピーカ、１８……マイクロホン。
FIG. 1 is a perspective view showing one embodiment of the present invention. FIG. 2 is a perspective view showing another embodiment of the present invention. FIG. 3 is a schematic diagram showing a cross section of FIG. 1. FIG. 4 is a cross-sectional view of the metal porous material.
FIG. 5 is a diagram showing a method of testing the silencing effect. FIG. 6 is a graph showing the measurement results of pressure loss. Explanation of symbols, 1...Outer surface, 2...Inner surface, 3
... Top plate, 4 ... Intermediate plate, 5 ... Bottom plate, 6 ... Sound deadening member, 7 ... Flow direction, 8 ... Distribution path, 9 ...
Air chamber, 12... Metal porous material, 13... Expanded metal, 14... Metal fiber, 15... Test box, 16... Glass wool, 17... Speaker, 18... Microphone.
Claims (1)
れた小径の金属多孔質材製の筒状体とを備え、該
小径筒状体により一方の端部が拡径する空気流通
路を形成し、前記大径および小径筒状体間に形成
される空気室内に放射方向の金属多孔質材製の板
を少なくとも１個設置したことを特徴とする強制
換気装置用消音部材。 (2) 前記金属多孔質材が、Ａｌ系エクスパンド
メタルとＡｌ系金属繊維層との積層体である実用
新案登録請求の範囲第１項に記載の強制換気装置
用消音部材。[Scope of Claim for Utility Model Registration] (1) Comprising a large-diameter cylindrical body and a small-diameter cylindrical body made of porous metal material housed within the large-diameter cylindrical body; It is characterized by forming an air flow passage whose diameter expands at one end, and installing at least one plate made of a metal porous material in a radial direction in an air chamber formed between the large diameter and small diameter cylindrical bodies. Sound deadening material for forced ventilation equipment. (2) The sound deadening member for a forced ventilation system according to claim 1, wherein the metal porous material is a laminate of an Al-based expanded metal and an Al-based metal fiber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171456U JPH0175740U (en) | 1987-11-10 | 1987-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987171456U JPH0175740U (en) | 1987-11-10 | 1987-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0175740U true JPH0175740U (en) | 1989-05-23 |
Family
ID=31463303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987171456U Pending JPH0175740U (en) | 1987-11-10 | 1987-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0175740U (en) |
-
1987
- 1987-11-10 JP JP1987171456U patent/JPH0175740U/ja active Pending
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