JPS6483898A - Bellmouth for propeller fan - Google Patents
Bellmouth for propeller fanInfo
- Publication number
- JPS6483898A JPS6483898A JP24231687A JP24231687A JPS6483898A JP S6483898 A JPS6483898 A JP S6483898A JP 24231687 A JP24231687 A JP 24231687A JP 24231687 A JP24231687 A JP 24231687A JP S6483898 A JPS6483898 A JP S6483898A
- Authority
- JP
- Japan
- Prior art keywords
- bellmouth
- guide wall
- radius
- air
- peripheral edge
- 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 abate a noise being produced out of a fan by straightening a flow of air to be inhaled by a propeller fan, while forming a guide wall with roundness and a radius part guide wall continuing in the former both in the peripheral edge of a bellmouth in acceleration, respectively. CONSTITUTION:When a motor 1 is driven, a propeller fan 2 rotates, and air flows from the suction side A to the blowoff side B. The air is straightened by a bellmouth 3 and simultaneously accelerated, so that abatement in a noise and improvement in an airflow characteristic are achieved. The bellmouth 3 is set up in the inner circumference of a partition plate 5 partitioning off the suction side A and the blowoff side, and it has a straight wall 3a and a curved wall 3b for inward guidance. In this case, a guide wall 3c provided with a radius (roundness) of the specified diameter phiD and a radius part guide wall 3d with the specified radius R continuing in the former are formed in a peripheral edge 3e of the curved wall 3b, respectively. With this constitution, separation of an air flow and turbulence of an inflow state or the like in this peripheral edge 3e are controlled.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24231687A JPS6483898A (en) | 1987-09-25 | 1987-09-25 | Bellmouth for propeller fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24231687A JPS6483898A (en) | 1987-09-25 | 1987-09-25 | Bellmouth for propeller fan |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6483898A true JPS6483898A (en) | 1989-03-29 |
Family
ID=17087401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24231687A Pending JPS6483898A (en) | 1987-09-25 | 1987-09-25 | Bellmouth for propeller fan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6483898A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100376805C (en) * | 2004-07-21 | 2008-03-26 | 台达电子工业股份有限公司 | Radiation device |
-
1987
- 1987-09-25 JP JP24231687A patent/JPS6483898A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100376805C (en) * | 2004-07-21 | 2008-03-26 | 台达电子工业股份有限公司 | Radiation device |
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