JPS5738697A - Vane wheel of multiple vane blower - Google Patents
Vane wheel of multiple vane blowerInfo
- Publication number
- JPS5738697A JPS5738697A JP11448880A JP11448880A JPS5738697A JP S5738697 A JPS5738697 A JP S5738697A JP 11448880 A JP11448880 A JP 11448880A JP 11448880 A JP11448880 A JP 11448880A JP S5738697 A JPS5738697 A JP S5738697A
- Authority
- JP
- Japan
- Prior art keywords
- vane
- gap
- exfoliation
- boundary layer
- main
- 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 improve aero dynamical performance and decrease noise with simple structure by a method wherein main vane wheel and sub vane wheel are joined in one body with the leading edge of the vane of the flowing-away side a little shifted to the rotating direction than the trailing edge of the flowing-in side so that gap may be generated between the blades.
CONSTITUTION: Assemble sub vane body to the outer circumference of the main vane wheel 5 by a proper method for example by welding, under the condition that the leading edge of the sub vane 7b is shifting a little to the rotating direction than the trailing edge of the main vane 7a so that to create a gap 8. Under this constitution exfoliation of liquid on negative pressure surface is prevented, because liquid at high pressure side having high energy with little development of boundary layer, is fed to the boundary layer on the negative pressure surface of the main blade 7a, of which boundary layer is developed almost to exfoliate through gap 8 and prevents exfoliation. By this method a flow without any exfoliation up to the trailing edge of the auxiliary vane 7b is obtained, causing to improve aero-dynamic performance and reduce the noise. This arrangement also result in less parts, large reduction of working process and reduce manufacturing cost largely.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11448880A JPS5738697A (en) | 1980-08-19 | 1980-08-19 | Vane wheel of multiple vane blower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11448880A JPS5738697A (en) | 1980-08-19 | 1980-08-19 | Vane wheel of multiple vane blower |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5738697A true JPS5738697A (en) | 1982-03-03 |
Family
ID=14639000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11448880A Pending JPS5738697A (en) | 1980-08-19 | 1980-08-19 | Vane wheel of multiple vane blower |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5738697A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6088146A (en) * | 1983-10-17 | 1985-05-17 | 帝人株式会社 | Fluid interlacing nozzle of yarn |
CN1322238C (en) * | 2002-12-25 | 2007-06-20 | 株式会社江波精机 | Multiblade fan and producing method thereof |
CN106151103A (en) * | 2015-03-18 | 2016-11-23 | 秦彪 | Impeller in centrifugal and cross flow blower and manufacture method thereof |
-
1980
- 1980-08-19 JP JP11448880A patent/JPS5738697A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6088146A (en) * | 1983-10-17 | 1985-05-17 | 帝人株式会社 | Fluid interlacing nozzle of yarn |
JPS6237137B2 (en) * | 1983-10-17 | 1987-08-11 | Teijin Ltd | |
CN1322238C (en) * | 2002-12-25 | 2007-06-20 | 株式会社江波精机 | Multiblade fan and producing method thereof |
CN106151103A (en) * | 2015-03-18 | 2016-11-23 | 秦彪 | Impeller in centrifugal and cross flow blower and manufacture method thereof |
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