SE8903174D0 - RADIAL TYPE COOL FAN FOR ELECTRIC MOTORS - Google Patents
RADIAL TYPE COOL FAN FOR ELECTRIC MOTORSInfo
- Publication number
- SE8903174D0 SE8903174D0 SE8903174A SE8903174A SE8903174D0 SE 8903174 D0 SE8903174 D0 SE 8903174D0 SE 8903174 A SE8903174 A SE 8903174A SE 8903174 A SE8903174 A SE 8903174A SE 8903174 D0 SE8903174 D0 SE 8903174D0
- Authority
- SE
- Sweden
- Prior art keywords
- blade
- fan
- radial type
- blades
- electric motors
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
- F04D29/305—Flexible vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/287—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps with adjusting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
A radial type cooling fan for an electric motor (1, 3) has an impeller (4) with a plurality of stiff fan blades (41, 45) arranged on the impeller. Each blade is rotatably arranged around a turning axis (B-B, C-C) substantially parallel to the rotary axis (A-A) of the fan. The blades are arranged in such a way that the centrifugal force on the blade, caused by the rotation of the fan, strives to turn the blade around the turning axis in such a way that the angle of incidence of the blade is reduced. Further, the fan has spring members which are adapted to exert on the blade a torque which counteracts the turning of the blade caused by the centrifugal force. The blades are arranged such that the radially inner edge of each blade is positioned before the outer edge of the same blade in the direction of rotation.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8903174A SE464550B (en) | 1989-09-27 | 1989-09-27 | RADIAL TYPE COOL FAN FOR ELECTRIC MOTORS |
PCT/SE1990/000620 WO1991005397A1 (en) | 1989-09-27 | 1990-09-27 | Radial type cooling fan for electric motors |
AU65053/90A AU6505390A (en) | 1989-09-27 | 1990-09-27 | Radial type cooling fan for electric motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8903174A SE464550B (en) | 1989-09-27 | 1989-09-27 | RADIAL TYPE COOL FAN FOR ELECTRIC MOTORS |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8903174D0 true SE8903174D0 (en) | 1989-09-27 |
SE8903174L SE8903174L (en) | 1991-03-28 |
SE464550B SE464550B (en) | 1991-05-06 |
Family
ID=20376986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8903174A SE464550B (en) | 1989-09-27 | 1989-09-27 | RADIAL TYPE COOL FAN FOR ELECTRIC MOTORS |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU6505390A (en) |
SE (1) | SE464550B (en) |
WO (1) | WO1991005397A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU7596500A (en) | 1999-09-20 | 2001-04-24 | Quintiles Transnational Corporation | System and method for analyzing de-identified health care data |
US6547519B2 (en) * | 2001-04-13 | 2003-04-15 | Hewlett Packard Development Company, L.P. | Blower impeller apparatus with pivotable blades |
US9355273B2 (en) | 2006-12-18 | 2016-05-31 | Bank Of America, N.A., As Collateral Agent | System and method for the protection and de-identification of health care data |
EP2149712B1 (en) | 2008-07-28 | 2011-05-11 | Bombardier Transportation GmbH | Bidirectional centrifugal fan |
DE102010038374A1 (en) * | 2010-07-23 | 2012-01-26 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with a closing device for closing a flow channel |
CN103527515A (en) * | 2013-10-28 | 2014-01-22 | 无锡杰尔压缩机有限公司 | Shifting-fork-type diffusion guide vane adjusting device |
CN107013486A (en) * | 2017-05-24 | 2017-08-04 | 吴其兵 | A kind of tubular wine wheel of blade linkage |
CN108105125A (en) * | 2017-12-18 | 2018-06-01 | 卧龙电气集团股份有限公司 | One kind integrates more rotation direction fans |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE280189C (en) * | ||||
US2370600A (en) * | 1943-11-11 | 1945-02-27 | Gen Electric | Centrifugal fan |
GB1088673A (en) * | 1963-11-04 | 1967-10-25 | Dowty Hydraulic Units Ltd | Rotary fans |
US4662819A (en) * | 1986-04-10 | 1987-05-05 | American Standard Inc. | Centrifugal fan with variable blade pitch |
US4838760A (en) * | 1987-04-27 | 1989-06-13 | Bendix Electronics Limited | Fan with motor cooling enhancement |
-
1989
- 1989-09-27 SE SE8903174A patent/SE464550B/en not_active IP Right Cessation
-
1990
- 1990-09-27 WO PCT/SE1990/000620 patent/WO1991005397A1/en unknown
- 1990-09-27 AU AU65053/90A patent/AU6505390A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO1991005397A1 (en) | 1991-04-18 |
AU6505390A (en) | 1991-04-28 |
SE464550B (en) | 1991-05-06 |
SE8903174L (en) | 1991-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAL | Patent in force |
Ref document number: 8903174-4 Format of ref document f/p: F |
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NUG | Patent has lapsed |