JPS5669499A - Blower - Google Patents
BlowerInfo
- Publication number
- JPS5669499A JPS5669499A JP14556179A JP14556179A JPS5669499A JP S5669499 A JPS5669499 A JP S5669499A JP 14556179 A JP14556179 A JP 14556179A JP 14556179 A JP14556179 A JP 14556179A JP S5669499 A JPS5669499 A JP S5669499A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- fan
- inlet
- impeller
- diameter
- 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 stabilize flow within impeller, to improve capacity of a fan, and to reduce noises by making the impeller three dimensional blade which matches the air flow, by enlarging a diameter of an inlet port of the impeller and by enlarging outer diameter of a blade on an inlet part side.
CONSTITUTION: A blade 13 of a fan is, as shown in the figure, three-dimensioned and a blade on an inlet side part is cut off, and an inlet port diameter D1s on a shroud 12 side is set to be larger than an inlet port diameter D1h on a hub 11 side. Being thus designed, a difference between a wind velocity V2 and a wind velocity V3 becomes small as the wind velocity V2 at an inlet part of the fan becomes small to flow the air smoothly and to make an aireddy at the blade inlet part small, so that the intensity of air can be increased and noises can be reduced. Furthermore, D1s/D1h=1.1W1.3 is desirable. Also, by extending a blade length l3 on the shroud 12 side and setting a blade outer diameter D2s larger than a hub outer diameter D2h to reduce breaking away at the blade surface, capacity of the fan can be improved and noises can be reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14556179A JPS5669499A (en) | 1979-11-12 | 1979-11-12 | Blower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14556179A JPS5669499A (en) | 1979-11-12 | 1979-11-12 | Blower |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5669499A true JPS5669499A (en) | 1981-06-10 |
Family
ID=15387983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14556179A Pending JPS5669499A (en) | 1979-11-12 | 1979-11-12 | Blower |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5669499A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6146494A (en) * | 1984-08-11 | 1986-03-06 | Matsushita Electric Ind Co Ltd | Motor fan |
JPH0539930A (en) * | 1991-08-02 | 1993-02-19 | Daikin Ind Ltd | Air conditioner |
JPH084690A (en) * | 1994-06-13 | 1996-01-09 | Carrier Corp | Centrifugal-blower inlet orifice and assembly for rotary vane |
JP2005248950A (en) * | 2004-03-05 | 2005-09-15 | Lg Electronics Inc | Structure of blowing fan |
JP2009127541A (en) * | 2007-11-26 | 2009-06-11 | Daikin Ind Ltd | Centrifugal fan |
-
1979
- 1979-11-12 JP JP14556179A patent/JPS5669499A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6146494A (en) * | 1984-08-11 | 1986-03-06 | Matsushita Electric Ind Co Ltd | Motor fan |
JPH0539930A (en) * | 1991-08-02 | 1993-02-19 | Daikin Ind Ltd | Air conditioner |
JPH084690A (en) * | 1994-06-13 | 1996-01-09 | Carrier Corp | Centrifugal-blower inlet orifice and assembly for rotary vane |
JP2005248950A (en) * | 2004-03-05 | 2005-09-15 | Lg Electronics Inc | Structure of blowing fan |
JP2009127541A (en) * | 2007-11-26 | 2009-06-11 | Daikin Ind Ltd | Centrifugal fan |
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