JPS5581299A - Sirocco fan - Google Patents
Sirocco fanInfo
- Publication number
- JPS5581299A JPS5581299A JP15310878A JP15310878A JPS5581299A JP S5581299 A JPS5581299 A JP S5581299A JP 15310878 A JP15310878 A JP 15310878A JP 15310878 A JP15310878 A JP 15310878A JP S5581299 A JPS5581299 A JP S5581299A
- Authority
- JP
- Japan
- Prior art keywords
- main plate
- reinforcement
- oscillates
- plate
- diametral
- 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 prevent failure of a blade junction by decreasing a response amplitude according to an impact driving torque, for which a main plate is empowered to display a damping effect by mounting a reinforcement diametral smaller than outside diameter of the main plate on the side wall of the main plate.
CONSTITUTION: A disclike reinforcement 10 diametral smaller than outside diameter of a mani plate 1 is mounted on side wall 1a of the main plate 1 and fixed on a boss 4a of a rotary shaft 4 together with the main plate 1. This way of arrangement may invite an impact driving torque at start-up to induce oscillations on the main plate 1, however, the reinforcement 10 has been mounted on the main plate 1 and a natural oscillation is different between the two, therefore the reinforcement 10 becomes still at a frequency wherein the main plate 1 oscillates and the main plate 1 becomes still, on the contrary, at a frequency wherein the reinforcement 10 oscillates. A damping effect may result from a mutual contact of the main plate 1 and the reinforcement 10, and the main plate 1 oscillates less consequently, thus preventing a fatigue wear on a junction 9 of the main plate 1 and a blade 3.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15310878A JPS5581299A (en) | 1978-12-13 | 1978-12-13 | Sirocco fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15310878A JPS5581299A (en) | 1978-12-13 | 1978-12-13 | Sirocco fan |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5581299A true JPS5581299A (en) | 1980-06-19 |
Family
ID=15555138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15310878A Pending JPS5581299A (en) | 1978-12-13 | 1978-12-13 | Sirocco fan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5581299A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010281256A (en) * | 2009-06-04 | 2010-12-16 | Mitsubishi Electric Corp | Turbo fan |
JP2017129023A (en) * | 2016-01-18 | 2017-07-27 | ダイキン工業株式会社 | Centrifugal fan |
-
1978
- 1978-12-13 JP JP15310878A patent/JPS5581299A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010281256A (en) * | 2009-06-04 | 2010-12-16 | Mitsubishi Electric Corp | Turbo fan |
JP2017129023A (en) * | 2016-01-18 | 2017-07-27 | ダイキン工業株式会社 | Centrifugal fan |
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