JPS55164795A - Lateral flow fan - Google Patents
Lateral flow fanInfo
- Publication number
- JPS55164795A JPS55164795A JP7209579A JP7209579A JPS55164795A JP S55164795 A JPS55164795 A JP S55164795A JP 7209579 A JP7209579 A JP 7209579A JP 7209579 A JP7209579 A JP 7209579A JP S55164795 A JPS55164795 A JP S55164795A
- Authority
- JP
- Japan
- Prior art keywords
- blades
- noise
- shape
- attachment
- blade
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To ensure the reduction of vane pitch noise, by varying either one of blade attachment interval, attachment angle or the blade shape at least at one place, whereby formation of sine curve which maximumizes the vane pitch noise can be prevented.
CONSTITUTION: While the pitch and shape of the blades 2 are all equal to one another as depicted in the sketch, as to an attachment angle θ of the blades 2, only an attachment angle θ2 is different from others. In this mechanism, the cycles become like varied waves and monotoneously abnormal noise is not felt. And, although pitches and attachment angles of the blades are all equal, as for shape of the blades 2, even by making shape of only a blade 22 different from other blades, the cycles follow not a sine curve but a varied wave noise and the monotoneously abnormal noise is not heard, and therefore, decrease in the vane pitch noise can be ensured.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7209579A JPS55164795A (en) | 1979-06-08 | 1979-06-08 | Lateral flow fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7209579A JPS55164795A (en) | 1979-06-08 | 1979-06-08 | Lateral flow fan |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55164795A true JPS55164795A (en) | 1980-12-22 |
Family
ID=13479499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7209579A Pending JPS55164795A (en) | 1979-06-08 | 1979-06-08 | Lateral flow fan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55164795A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0479991U (en) * | 1990-11-26 | 1992-07-13 | ||
JP2006170043A (en) * | 2004-12-15 | 2006-06-29 | Matsushita Electric Ind Co Ltd | Cross flow fan |
CN110206753A (en) * | 2018-06-29 | 2019-09-06 | 华帝股份有限公司 | Centrifugal wind wheel for range hood |
-
1979
- 1979-06-08 JP JP7209579A patent/JPS55164795A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0479991U (en) * | 1990-11-26 | 1992-07-13 | ||
JP2006170043A (en) * | 2004-12-15 | 2006-06-29 | Matsushita Electric Ind Co Ltd | Cross flow fan |
CN110206753A (en) * | 2018-06-29 | 2019-09-06 | 华帝股份有限公司 | Centrifugal wind wheel for range hood |
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