JPH0274599U - - Google Patents
Info
- Publication number
- JPH0274599U JPH0274599U JP1988152580U JP15258088U JPH0274599U JP H0274599 U JPH0274599 U JP H0274599U JP 1988152580 U JP1988152580 U JP 1988152580U JP 15258088 U JP15258088 U JP 15258088U JP H0274599 U JPH0274599 U JP H0274599U
- Authority
- JP
- Japan
- Prior art keywords
- casing
- channel
- swirling channel
- relationship
- swirling
- 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 3
- 238000004804 winding Methods 0.000 description 3
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/52—Outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
第１図ａは本考案の第１実施例の断面図、同図
ｂは上記実施例の巻き角に対する旋回流路壁面半
径の関係図、第２図ａは本考案の第２実施例の断
面図、同図ｂは上記実施例の巻き角に対する旋回
流路壁面半径の関係図、第３図ａは従来技術の断
面図、同図ｂは上記従来技術の巻き角に対する旋
回流路壁面半径の関係図である。
１……ケーシング、２……羽根車、３……羽根
車の中心、４……旋回流路のノーズ部、５……旋
回流路壁面、６……吐出口、７……旋回流路、８
……吐出流、９……巻込流、１０……ノーズ部の
隙間、１１……吸込流、１２……戻り流、１４…
…従来のケーシングの壁面、θ……旋回流路の巻
き角、ｒ……旋回流路壁面半径。
Fig. 1a is a sectional view of the first embodiment of the present invention, Fig. 1b is a diagram of the relationship between the winding angle and the wall radius of the swirling channel in the above embodiment, and Fig. 2a is a cross-sectional view of the second embodiment of the invention. Figure 3b is a diagram of the relationship between the wall radius of the swirling channel and the winding angle of the above embodiment, Figure 3a is a sectional view of the prior art, and Figure b is a relationship between the wall radius of the swirling channel and the winding angle of the prior art. It is a relationship diagram. DESCRIPTION OF SYMBOLS 1... Casing, 2... Impeller, 3... Center of impeller, 4... Nose part of swirling channel, 5... Wall surface of swirling channel, 6... Discharge port, 7... Rotating channel, 8
...Discharge flow, 9...Involvement flow, 10...Nose gap, 11...Suction flow, 12...Return flow, 14...
...Wall surface of conventional casing, θ... Wrap angle of swirling channel, r... Radius of wall surface of swirling channel.
Claims (1)
いて、前記ケーシングのノーズ部近傍に外方への
膨出部を設けたことを特徴とする遠心送風機。 1. A centrifugal blower including a spiral casing, characterized in that the casing has an outwardly bulging portion near a nose portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988152580U JPH0274599U (en) | 1988-11-25 | 1988-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988152580U JPH0274599U (en) | 1988-11-25 | 1988-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0274599U true JPH0274599U (en) | 1990-06-07 |
Family
ID=31427638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988152580U Pending JPH0274599U (en) | 1988-11-25 | 1988-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0274599U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011149328A (en) * | 2010-01-21 | 2011-08-04 | Mitsubishi Heavy Ind Ltd | Multiblade centrifugal fan and air conditioner using the same |
| WO2016139732A1 (en) * | 2015-03-02 | 2016-09-09 | 三菱電機株式会社 | Sirocco fan and indoor unit of air conditioner using this sirocco fan |
| JP2017129152A (en) * | 2013-04-05 | 2017-07-27 | アトラス コプコ エアーパワー, ナームローゼ フェンノートシャップATLAS COPCO AIRPOWER, naamloze vennootschap | Housing for scroll compressor fan |
| WO2019087298A1 (en) * | 2017-10-31 | 2019-05-09 | 三菱電機株式会社 | Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device |
| WO2019224869A1 (en) * | 2018-05-21 | 2019-11-28 | 三菱電機株式会社 | Centrifugal air blower, air blowing device, air conditioning device, and refrigeration cycle device |
| JPWO2019146015A1 (en) * | 2018-01-24 | 2020-06-18 | 三菱電機株式会社 | Centrifugal blower |
| WO2020129179A1 (en) * | 2018-12-19 | 2020-06-25 | 三菱電機株式会社 | Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device |
| DE102019210077A1 (en) * | 2019-07-09 | 2021-01-14 | Ziehl-Abegg Se | Fan with scroll housing and scroll housing for one fan |
| WO2022195717A1 (en) * | 2021-03-16 | 2022-09-22 | 三菱電機株式会社 | Scroll casing, and air-blowing device and air-conditioning device provided with said scroll casing |
-
1988
- 1988-11-25 JP JP1988152580U patent/JPH0274599U/ja active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011149328A (en) * | 2010-01-21 | 2011-08-04 | Mitsubishi Heavy Ind Ltd | Multiblade centrifugal fan and air conditioner using the same |
| JP2017129152A (en) * | 2013-04-05 | 2017-07-27 | アトラス コプコ エアーパワー, ナームローゼ フェンノートシャップATLAS COPCO AIRPOWER, naamloze vennootschap | Housing for scroll compressor fan |
| WO2016139732A1 (en) * | 2015-03-02 | 2016-09-09 | 三菱電機株式会社 | Sirocco fan and indoor unit of air conditioner using this sirocco fan |
| WO2019087298A1 (en) * | 2017-10-31 | 2019-05-09 | 三菱電機株式会社 | Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device |
| JPWO2019146015A1 (en) * | 2018-01-24 | 2020-06-18 | 三菱電機株式会社 | Centrifugal blower |
| WO2019224869A1 (en) * | 2018-05-21 | 2019-11-28 | 三菱電機株式会社 | Centrifugal air blower, air blowing device, air conditioning device, and refrigeration cycle device |
| WO2020129179A1 (en) * | 2018-12-19 | 2020-06-25 | 三菱電機株式会社 | Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device |
| JPWO2020129179A1 (en) * | 2018-12-19 | 2021-09-02 | 三菱電機株式会社 | Centrifugal blower, blower, air conditioner and refrigeration cycle device |
| DE102019210077A1 (en) * | 2019-07-09 | 2021-01-14 | Ziehl-Abegg Se | Fan with scroll housing and scroll housing for one fan |
| WO2021004589A1 (en) * | 2019-07-09 | 2021-01-14 | Ziehl-Abegg Se | Fan with spiral housing and spiral housing for a fan |
| CN114341504A (en) * | 2019-07-09 | 2022-04-12 | 施乐百有限公司 | Fan with helical casing and helical casing for fan |
| CN114341504B (en) * | 2019-07-09 | 2024-03-19 | 施乐百有限公司 | Fan and spiral casing for the fan |
| US11946486B2 (en) | 2019-07-09 | 2024-04-02 | Ziehl-Abegg Se | Fan with scroll housing and scroll housing for fan |
| WO2022195717A1 (en) * | 2021-03-16 | 2022-09-22 | 三菱電機株式会社 | Scroll casing, and air-blowing device and air-conditioning device provided with said scroll casing |