JPS5598699A - Cross-flow fan - Google Patents
Cross-flow fanInfo
- Publication number
- JPS5598699A JPS5598699A JP674179A JP674179A JPS5598699A JP S5598699 A JPS5598699 A JP S5598699A JP 674179 A JP674179 A JP 674179A JP 674179 A JP674179 A JP 674179A JP S5598699 A JPS5598699 A JP S5598699A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- axial
- fan
- cross
- central part
- 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
Abstract
PURPOSE: To suppress the generation of noise at the operation of a cross-flow fan by a construction wherein the shape of the end surface of a tongue member of the fan casing opposing to the impeller is changed in the axial direction of the fan in such a manner that the gap defined between the above-mentioned end surface and the outer peripheral surface of the impeller is greatest at the central part of the impeller and smallest at both axial end portions.
CONSTITUTION: A member 22 attached to the fan casing and projected to oppose to the impeller 3 of the fan has an end surface 22 which a countour which varies along the axis of the impeller in such a manner that the clearance y1 formed between the outer periphery of the impeller 3 and the end surface 22 of the projected member 21 is greatest at the axial central portion of the impeller and smallest at both axial end portions of the impeller 3. In general, the velocity of air in cross-flow fan is highest at the axial central part of the impeller and is comparatively low at both axial end portions of the same. Namely, the central part of the impeller makes a greater contribution to the work and, hence, produces higher level of noise. In the cross-flow fan thus constructed, the generation of noise is effectively suppressed because the clearance y1 is greater at the axial central part than at both axial ends of the impeller.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP674179A JPS5598699A (en) | 1979-01-23 | 1979-01-23 | Cross-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP674179A JPS5598699A (en) | 1979-01-23 | 1979-01-23 | Cross-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5598699A true JPS5598699A (en) | 1980-07-26 |
Family
ID=11646628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP674179A Pending JPS5598699A (en) | 1979-01-23 | 1979-01-23 | Cross-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5598699A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57134388U (en) * | 1981-02-16 | 1982-08-21 | ||
| JPS6181598A (en) * | 1984-09-28 | 1986-04-25 | Sanyo Electric Co Ltd | Cross flow blower |
| CN109185227A (en) * | 2018-08-08 | 2019-01-11 | 江苏大学镇江流体工程装备技术研究院 | A kind of solid-liquid two-phase flow centrifugal pump cut water design method |
-
1979
- 1979-01-23 JP JP674179A patent/JPS5598699A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57134388U (en) * | 1981-02-16 | 1982-08-21 | ||
| JPS6181598A (en) * | 1984-09-28 | 1986-04-25 | Sanyo Electric Co Ltd | Cross flow blower |
| CN109185227A (en) * | 2018-08-08 | 2019-01-11 | 江苏大学镇江流体工程装备技术研究院 | A kind of solid-liquid two-phase flow centrifugal pump cut water design method |
| CN109185227B (en) * | 2018-08-08 | 2021-01-05 | 江苏大学镇江流体工程装备技术研究院 | Design method for partition tongue of solid-liquid two-phase flow centrifugal pump |
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