JPS55107100A - Blower driven by electric motor - Google Patents
Blower driven by electric motorInfo
- Publication number
- JPS55107100A JPS55107100A JP1323979A JP1323979A JPS55107100A JP S55107100 A JPS55107100 A JP S55107100A JP 1323979 A JP1323979 A JP 1323979A JP 1323979 A JP1323979 A JP 1323979A JP S55107100 A JPS55107100 A JP S55107100A
- Authority
- JP
- Japan
- Prior art keywords
- air flow
- absorbing material
- sound absorbing
- walls
- electric motor
- 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 suppress noises developed by the blowers driven by an electric motor by forming the walls of the air flow duct with a sound absorbing material for a return guide vane, and to enable easy attachement of the sound absorbing material without largely changing the present construction.
CONSTITUTION: By formation of walls of the air flow duct for a return guide vane with the sound absorbing material 8, particular pulsating sound waves in the air flow are absorbed by the walls while the air flow passes through the duct. Accordingly the noise sources contained in the following air flow can be reduced, and furthermore, the sound absorbing material can be added without largely changing the present construction.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1323979A JPS55107100A (en) | 1979-02-09 | 1979-02-09 | Blower driven by electric motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1323979A JPS55107100A (en) | 1979-02-09 | 1979-02-09 | Blower driven by electric motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55107100A true JPS55107100A (en) | 1980-08-16 |
Family
ID=11827636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1323979A Pending JPS55107100A (en) | 1979-02-09 | 1979-02-09 | Blower driven by electric motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107100A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61266280A (en) * | 1985-05-21 | 1986-11-25 | Dainippon Printing Co Ltd | Automatic die-stamper |
JPS6216798U (en) * | 1985-07-17 | 1987-01-31 | ||
US5110266A (en) * | 1989-03-01 | 1992-05-05 | Hitachi, Ltd. | Electric blower having improved return passage for discharged air flow |
-
1979
- 1979-02-09 JP JP1323979A patent/JPS55107100A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61266280A (en) * | 1985-05-21 | 1986-11-25 | Dainippon Printing Co Ltd | Automatic die-stamper |
JPS6216798U (en) * | 1985-07-17 | 1987-01-31 | ||
JPH045758Y2 (en) * | 1985-07-17 | 1992-02-18 | ||
US5110266A (en) * | 1989-03-01 | 1992-05-05 | Hitachi, Ltd. | Electric blower having improved return passage for discharged air flow |
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