EP0992692A1 - Ventilateur avec canal de refroidissement pour le moteur - Google Patents
Ventilateur avec canal de refroidissement pour le moteur Download PDFInfo
- Publication number
- EP0992692A1 EP0992692A1 EP99119896A EP99119896A EP0992692A1 EP 0992692 A1 EP0992692 A1 EP 0992692A1 EP 99119896 A EP99119896 A EP 99119896A EP 99119896 A EP99119896 A EP 99119896A EP 0992692 A1 EP0992692 A1 EP 0992692A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motorized fan
- duct
- motor
- fan
- rotor
- 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.)
- Granted
Links
Images
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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
Definitions
- the present invention relates to a duct for a motorized fan, for application in particular to a heat exchanger for an internal combustion engine.
- the invention relates to a duct comprising an essentially annular outer wall, defining internally an axial flow passage and which surrounds, in use, the rotor of the motorized fan; downstream of the motorized fan, the said wall is connected by means of a plurality of spokes to a central support structure to which the motor of the fan is fixed.
- the object of the present invention is to provide a duct of the aforesaid type which enables the electric motor of the fan to be efficiently cooled.
- a duct of the type described above characterised in that at least one blade is shaped so as to define a conduit with a radially outer inlet aperture, operable to capture a portion of the air stream generated by the fan in operation, and a radially inner outlet aperture, opening to the region occupied by the motor of the motorized fan.
- the invention also relates to a cooling device which includes a motorized fan and a duct having the characteristics defined above.
- a cooling device is generally indicated 1, for application in particular to a heat exchanger, such as a radiator, of an internal combustion engine.
- the cooling device 1 includes a motorized fan, generally indicated 2, and an associated duct, indicated 3.
- the motorized fan 2 includes, in a manner known per se, a rotor 4 with a hub 5 having a plurality of blades 6 extending from the periphery thereof.
- a rotor 4 with a hub 5 having a plurality of blades 6 extending from the periphery thereof.
- the radially outer ends of the blades 6 of the rotor 4 are connected to an outer ring indicated 7.
- the hub 5 of the rotor 4 is hollow and the associated electric drive motor 8 lies at least partially within it.
- the shaft 9 of the electric motor 8 is operatively connected to the hub 5 of the rotor.
- the duct 3 comprises an essentially annular outer wall 10 which defines internally an axial flow passage 11 and surrounds the rotor 4 of the motorized fan.
- the wall 10 of the duct Downstream of the motorized fan 2, the wall 10 of the duct is connected by means of a plurality of spokes 12 to a central support structure 13 to which the housing of the electric motor 8 is fixed in a manner known per se.
- each spoke 12 of the duct 3 is shaped so as to define a conduit 14 having a radially outer inlet aperture 15, acting to capture a portion of the air stream generated by the operation of the motorized fan 2.
- the stream of air captured through the aperture 15 flows through the conduit 14 in the direction of a radially inner outlet aperture 16 directed towards the region occupied by the motor 8 of the motorized fan.
- a spoke or each of the spokes 12, has a substantially tubular structure.
- this spoke could simply have a channel-shape structure.
- a chamber 17 is formed in the vicinity of the central support structure 13, into which the conduit 14 formed in one or each spoke 12 of the duct opens.
- the outlet or discharge aperture 16 is most conveniently formed essentially in the wall of this chamber facing the electric motor 8.
- the cooling of the motor 8 of the motorized fan can be further improved by the provision of a plurality of blades 18 (Figure 1) which extend from the inner surface of the hub of the rotor, generating in operation a stream which washes over the outer surface of the motor 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1998TO000850A IT1303112B1 (it) | 1998-10-08 | 1998-10-08 | Convogliatore per un motoventilatore e dispositivo di raffreddamentocomprendente tale convogliatore. |
ITTO980850 | 1998-10-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0992692A1 true EP0992692A1 (fr) | 2000-04-12 |
EP0992692B1 EP0992692B1 (fr) | 2004-11-17 |
Family
ID=11417094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99119896A Expired - Lifetime EP0992692B1 (fr) | 1998-10-08 | 1999-10-07 | Ventilateur avec canal de refroidissement pour le moteur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0992692B1 (fr) |
DE (1) | DE69921930T2 (fr) |
IT (1) | IT1303112B1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004097226A1 (fr) * | 2003-04-28 | 2004-11-11 | Robert Bosch Corporation | Ensemble ventilateur de refroidissement de moteur automobile |
WO2008146154A2 (fr) * | 2007-05-30 | 2008-12-04 | Spal Automotive S.R.L. | Unité de ventilation |
EP2549116A1 (fr) * | 2011-07-22 | 2013-01-23 | ebm-papst Mulfingen GmbH & Co. KG | Ventilateur axial avec canal d'écoulement supplémentaire |
GB2495710A (en) * | 2011-10-17 | 2013-04-24 | Nidec Motors & Actuators Gmbh Germany | Motor support arm for a cooling system fan |
CN109441863A (zh) * | 2018-12-26 | 2019-03-08 | 上海诺地乐通用设备制造有限公司 | 一种屋顶离心风机及其电机腔散热的结构及方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023201900A1 (de) | 2023-03-02 | 2024-09-05 | Ziehl-Abegg Se | Vorrichtung zur Kühlung des Elektromotors eines Ventilators mit Luft, Ventilator und Verfahren zur Kühlung des Elektromotors eines Ventilators |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1466364A (en) * | 1921-08-04 | 1923-08-28 | Ilg Electric Ventilating Compa | Self-cooled electric motor |
US1487766A (en) * | 1919-11-13 | 1924-03-25 | Ilg Electric Ventilating Compa | Protective device for ventilating fans |
GB2029125A (en) * | 1978-08-18 | 1980-03-12 | Smiths Industries Ltd | Electric-motor driven fan arrangements for use in engine cooling systems |
US5180279A (en) * | 1992-03-31 | 1993-01-19 | General Motors Corporation | Heat shield and deflector for engine cooling fan motor |
-
1998
- 1998-10-08 IT IT1998TO000850A patent/IT1303112B1/it active IP Right Grant
-
1999
- 1999-10-07 EP EP99119896A patent/EP0992692B1/fr not_active Expired - Lifetime
- 1999-10-07 DE DE69921930T patent/DE69921930T2/de not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1487766A (en) * | 1919-11-13 | 1924-03-25 | Ilg Electric Ventilating Compa | Protective device for ventilating fans |
US1466364A (en) * | 1921-08-04 | 1923-08-28 | Ilg Electric Ventilating Compa | Self-cooled electric motor |
GB2029125A (en) * | 1978-08-18 | 1980-03-12 | Smiths Industries Ltd | Electric-motor driven fan arrangements for use in engine cooling systems |
US5180279A (en) * | 1992-03-31 | 1993-01-19 | General Motors Corporation | Heat shield and deflector for engine cooling fan motor |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004097226A1 (fr) * | 2003-04-28 | 2004-11-11 | Robert Bosch Corporation | Ensemble ventilateur de refroidissement de moteur automobile |
US7585159B2 (en) | 2003-04-28 | 2009-09-08 | Robert Bosch Gmbh | Automotive engine-cooling fan assembly |
WO2008146154A2 (fr) * | 2007-05-30 | 2008-12-04 | Spal Automotive S.R.L. | Unité de ventilation |
WO2008146154A3 (fr) * | 2007-05-30 | 2009-05-28 | Spal Automotive Srl | Unité de ventilation |
EP2549116A1 (fr) * | 2011-07-22 | 2013-01-23 | ebm-papst Mulfingen GmbH & Co. KG | Ventilateur axial avec canal d'écoulement supplémentaire |
US20130022479A1 (en) * | 2011-07-22 | 2013-01-24 | Oliver Haaf | Axial Fan With Additional Flow Channel |
CN102913467A (zh) * | 2011-07-22 | 2013-02-06 | 依必安-派特穆尔芬根股份有限两合公司 | 带有附加流体通道的轴流式通风机 |
CN102913467B (zh) * | 2011-07-22 | 2015-08-12 | 依必安-派特穆尔芬根股份有限两合公司 | 带有附加流体通道的轴流式通风机 |
US9494162B2 (en) | 2011-07-22 | 2016-11-15 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Axial fan with additional flow channel |
GB2495710A (en) * | 2011-10-17 | 2013-04-24 | Nidec Motors & Actuators Gmbh Germany | Motor support arm for a cooling system fan |
CN109441863A (zh) * | 2018-12-26 | 2019-03-08 | 上海诺地乐通用设备制造有限公司 | 一种屋顶离心风机及其电机腔散热的结构及方法 |
CN109441863B (zh) * | 2018-12-26 | 2023-11-28 | 英飞同仁风机股份有限公司 | 一种屋顶离心风机及其电机腔散热的结构及方法 |
Also Published As
Publication number | Publication date |
---|---|
DE69921930D1 (de) | 2004-12-23 |
DE69921930T2 (de) | 2005-03-31 |
EP0992692B1 (fr) | 2004-11-17 |
IT1303112B1 (it) | 2000-10-30 |
ITTO980850A1 (it) | 2000-04-08 |
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