JPH01144594U - - Google Patents
Info
- Publication number
- JPH01144594U JPH01144594U JP4159188U JP4159188U JPH01144594U JP H01144594 U JPH01144594 U JP H01144594U JP 4159188 U JP4159188 U JP 4159188U JP 4159188 U JP4159188 U JP 4159188U JP H01144594 U JPH01144594 U JP H01144594U
- Authority
- JP
- Japan
- Prior art keywords
- orifice
- diameter
- vacuum
- hole
- throttle opening
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Description
第１図は、この考案の実施例を示す縦断面図、
第２図は、第１図の―線断面図、第３図、第
４図は、従来例を示す図で、第３図は、消火設備
のフローチヤート、第４図は、オリフイスの拡大
縦断面図である。
２１……遮蔽部、２２……絞り口、２３……オ
リフイス板、２４……貫通孔。
FIG. 1 is a longitudinal sectional view showing an embodiment of this invention;
Figure 2 is a sectional view taken along the line - - in Figure 1, Figures 3 and 4 are diagrams showing conventional examples, Figure 3 is a flowchart of the fire extinguishing equipment, and Figure 4 is an enlarged longitudinal section of the orifice. It is a front view. 21... Shielding portion, 22... Throttle opening, 23... Orifice plate, 24... Through hole.
Claims (1)
数の貫通孔を形成したことを特徴とする減圧オリ
フイス。 (2) 貫通孔が、絞り口の径より小さな径である
ことを特徴とする請求項第１記載の減圧オリフイ
ス。[Claims for Utility Model Registration] (1) A vacuum orifice characterized by having a plurality of through holes formed in a shielding portion of an orifice plate provided with a throttle opening. (2) The vacuum orifice according to claim 1, wherein the through hole has a diameter smaller than the diameter of the orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4159188U JPH01144594U (en) | 1988-03-29 | 1988-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4159188U JPH01144594U (en) | 1988-03-29 | 1988-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01144594U true JPH01144594U (en) | 1989-10-04 |
Family
ID=31268030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4159188U Pending JPH01144594U (en) | 1988-03-29 | 1988-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01144594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005521014A (en) * | 2002-03-22 | 2005-07-14 | ドレッサ、インク | Noise reduction device for fluid flow system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659096A (en) * | 1979-10-17 | 1981-05-22 | Hitachi Ltd | Liquid feeder |
| JPS5723159A (en) * | 1980-07-18 | 1982-02-06 | Toshiba Corp | Data processing system |
-
1988
- 1988-03-29 JP JP4159188U patent/JPH01144594U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5659096A (en) * | 1979-10-17 | 1981-05-22 | Hitachi Ltd | Liquid feeder |
| JPS5723159A (en) * | 1980-07-18 | 1982-02-06 | Toshiba Corp | Data processing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005521014A (en) * | 2002-03-22 | 2005-07-14 | ドレッサ、インク | Noise reduction device for fluid flow system |