US20090199791A1 - Dual cooling fan system driven by single motor - Google Patents
Dual cooling fan system driven by single motor Download PDFInfo
- Publication number
- US20090199791A1 US20090199791A1 US11/949,372 US94937207A US2009199791A1 US 20090199791 A1 US20090199791 A1 US 20090199791A1 US 94937207 A US94937207 A US 94937207A US 2009199791 A1 US2009199791 A1 US 2009199791A1
- Authority
- US
- United States
- Prior art keywords
- fan
- driven
- dummy
- motor
- fans
- 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.)
- Abandoned
Links
- 238000001816 cooling Methods 0.000 title description 7
- 230000009977 dual effect Effects 0.000 title description 5
- 239000003570 air Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 4
- 229920001197 polyacetylene Polymers 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000012080 ambient air Substances 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
-
- 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
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- 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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2210/00—Working fluids
- F05D2210/10—Kind or type
- F05D2210/12—Kind or type gaseous, i.e. compressible
Definitions
- the present invention relates to a cooling fan system, and more particularly, to a dual cooling fan system driven by single motor.
- a vehicle In general, a vehicle is cooled with coolant or cooling water.
- the cooling water circulates such that after it is heated in the engine, it is cooled using both a fan and a radiator, and is then supplied back to the engine.
- the radiator uses a separate fan to more quickly and efficiently cool the heated cooling water.
- a fan system includes a motor; a driven fan, driven by the motor; and a dummy fan, freely rotatable around a bearing support shaft.
- the fans have blade rings at their external surfaces.
- the blade rings include gears, engaged with each other such that rotation of the driven fan rotates the dummy fan.
- the fans may blow air toward a vehicle radiator, and may be attached to a fan cover provided at the front side of the radiator.
- the driven fan may be near the transmission, and the dummy fan may be near the engine.
- the dummy fan may be larger than the driven fan, and more particularly, the ratio of the diameter of the driven fan to the diameter of the dummy fan may be 7:10.
- the driven fan may include fewer fan blades than the dummy fan. More particularly, the driven fan may have five fan blades and the dummy fan may have six.
- the gear ratio of the gears of the driven fan to the gears of the dummy fan may be approximately 10:7.
- the fan blades may be made of polyacetylene 66 or polypropylene.
- the blade rings and/or the gears may be made of aluminum.
- FIG. 1 is a view showing the structure of a dual cooling fan system driven by a single motor according to an embodiment of the present invention.
- a dual cooling fan system driven by single motor includes a Down Flow type radiator 1 and a fan assembly 5 .
- Down Flow type radiator 1 is provided at the front side of an engine.
- Fan assembly 5 cools radiator 1 with air from dual fans 6 , 13 that are rotated using one motor controlled by an ECU.
- Fan assembly 5 includes a driven fan 6 and a dummy fan 13 .
- the driven fan is provided in a first fan receiving hole 3 in a fan cover 2 provided at the front side of radiator 1 .
- the dummy fan 13 is provided in a second fan receiving hole 4 adjacent first fan receiving hole 3 .
- the dummy fan 13 rotates together with the driven fan 6 .
- Diameter d of first fan receiving hole 3 is smaller than diameter D of second fan receiving hole 4 . More air thus flows into the second hole 4 . For this reason, even though the fans are not rotated while a vehicle runs, ambient air flows to the engine.
- the ratio of diameter d of first fan receiving hole 3 to diameter D of second fan receiving hole 4 is 7:10.
- the diameter of second fan receiving hole 4 should be selected so as to be projected onto the area of the core of the radiator 1 to the maximum extent.
- first fan receiving hole 3 is positioned close to a transmission
- second fan receiving hole 4 is positioned close to the engine.
- the motor is positioned close to first fan receiving hole 3 ; the motor is thus less affected by heat radiated from the engine.
- Driven fan 6 includes a driving motor 7 , a blade ring 10 , and an external gear 11 .
- the driving motor is received in a housing that is supported by stays 8 fixed to fan cover 2 .
- the driving motor is connected to a power supply connector 12 , and is controlled by the ECU.
- Blade ring 10 is attached to ends of blades 9 that are rotated by driving motor 7 so as to allow air to flow to radiator 1 .
- External gear 11 is formed on the outer surface of blade ring 10 .
- Stays 8 are fixed to fan cover 2 in order to support the housing in which motor 7 is received. Accordingly, each of the stays has a small diameter so that a sufficient space is ensured and airflow is not prevented when motor 7 is driven. For example, stays 8 are fixed to the fan cover at 90° intervals.
- Driving motor 7 may have a capacity to rotate the fan 6 at 1000 rpm or less in consideration of fan noise.
- Blades 9 may be made of polyacetylene 66 or polypropylene, and the number of the blades is selected in consideration of the entire performance of the motor.
- Blade ring 10 and external gear 11 may be made of aluminum, or any light material.
- Dummy fan 13 includes a bearing support shaft 14 , blades 16 , a blade ring 17 , and an external gear 18 .
- the bearing support shaft freely rotates using a bearing received in a housing that is supported by stays 15 fixed to fan cover 2 .
- Blades 16 rotate together with bearing support shaft 14 and blow air to radiator 1 .
- Blade ring 17 is attached to ends of blades 16 .
- External gear 18 is formed on the outer surface of blade ring 17 , and meshes with external gear 11 on blade ring 10 to rotate dummy fan 13 .
- Stays 15 may have a structure similar to that of stays 8 of driven fan 6 .
- bearing provided on bearing support shaft 14 allows dummy fan 13 to rotate with a small force of driving motor 7 at low rpm.
- Blades 16 may be made of polyacetylene 66 or polypropylene.
- Blade ring 17 and external gear 18 may be made of aluminum or any light material.
- External gears 11 and 18 may be applied with grease or another material that can improve durability and prevent noise.
- the number of blades 9 and 16 of driven fan 6 and dummy fan 13 is determined depending on the gear ratio, to avoid resonance of blades 9 and 16 , and to prevent bit sound from being generated during the rotation of the fans.
- the number of the blades of the driven fan and the dummy fan is selected so that the difference between main components of frequency is in the range of about 30 to 40 Hz.
- the gear ratio of d:D is 7:10
- the number of blades 9 of driven fan 6 is 5, and the number of blades 16 of dummy fan 13 is 6.
- a driving motor 7 having capacity of 100 W is used, and the motor speed is 1200 rpm at 12V.
- Main components of peak values of driven fan 6 are experimentally 100 Hz and 200 Hz.
- Dummy fan 13 is rotated at 840 rpm, and main components of peak values are 84 Hz and 168 Hz.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
A fan system includes a motor; a driven fan, driven by the motor; and a dummy fan, freely rotatable around a bearing support shaft. The fans have blade rings at their external surfaces. The blade rings include gears, engaged with each other such that rotation of the driven fan rotates the dummy fan.
Description
- The present application is based on, and claims priority from, Korean Application Serial Number 10-2007-0067895, filed on Jul. 6, 2007, the disclosure of which is hereby incorporated by reference herein in its entirety.
- The present invention relates to a cooling fan system, and more particularly, to a dual cooling fan system driven by single motor.
- In general, a vehicle is cooled with coolant or cooling water. The cooling water circulates such that after it is heated in the engine, it is cooled using both a fan and a radiator, and is then supplied back to the engine. The radiator uses a separate fan to more quickly and efficiently cool the heated cooling water.
- If the capacity of the motor of the fan is increased, or more than one fan is used, cooling efficiency increases, but noise, manufacturing cost, and weight also increase. If the capacity of the motor of the fan is reduced, less noise is generated, but the cooling efficiency of the radiator suffers.
- A fan system includes a motor; a driven fan, driven by the motor; and a dummy fan, freely rotatable around a bearing support shaft. The fans have blade rings at their external surfaces. The blade rings include gears, engaged with each other such that rotation of the driven fan rotates the dummy fan.
- The fans may blow air toward a vehicle radiator, and may be attached to a fan cover provided at the front side of the radiator. The driven fan may be near the transmission, and the dummy fan may be near the engine.
- The dummy fan may be larger than the driven fan, and more particularly, the ratio of the diameter of the driven fan to the diameter of the dummy fan may be 7:10.
- The driven fan may include fewer fan blades than the dummy fan. More particularly, the driven fan may have five fan blades and the dummy fan may have six.
- The gear ratio of the gears of the driven fan to the gears of the dummy fan may be approximately 10:7.
- The fan blades may be made of polyacetylene 66 or polypropylene. The blade rings and/or the gears may be made of aluminum.
- For a better understanding of the nature and objects of the present invention, reference should be made to the following detailed description with the accompanying drawing, in which:
-
FIG. 1 is a view showing the structure of a dual cooling fan system driven by a single motor according to an embodiment of the present invention. - A dual cooling fan system driven by single motor according to an embodiment of the present invention includes a Down
Flow type radiator 1 and afan assembly 5. DownFlow type radiator 1 is provided at the front side of an engine.Fan assembly 5 coolsradiator 1 with air fromdual fans -
Fan assembly 5 includes a drivenfan 6 and adummy fan 13. The driven fan is provided in a first fan receiving hole 3 in afan cover 2 provided at the front side ofradiator 1. Thedummy fan 13 is provided in a second fan receiving hole 4 adjacent first fan receiving hole 3. Thedummy fan 13 rotates together with the drivenfan 6. - Diameter d of first fan receiving hole 3 is smaller than diameter D of second fan receiving hole 4. More air thus flows into the second hole 4. For this reason, even though the fans are not rotated while a vehicle runs, ambient air flows to the engine.
- For example, the ratio of diameter d of first fan receiving hole 3 to diameter D of second fan receiving hole 4 is 7:10.
- The diameter of second fan receiving hole 4 should be selected so as to be projected onto the area of the core of the
radiator 1 to the maximum extent. - Further, first fan receiving hole 3 is positioned close to a transmission, and second fan receiving hole 4 is positioned close to the engine. The motor is positioned close to first fan receiving hole 3; the motor is thus less affected by heat radiated from the engine.
-
Driven fan 6 includes adriving motor 7, ablade ring 10, and anexternal gear 11. The driving motor is received in a housing that is supported by stays 8 fixed tofan cover 2. The driving motor is connected to apower supply connector 12, and is controlled by the ECU.Blade ring 10 is attached to ends ofblades 9 that are rotated by drivingmotor 7 so as to allow air to flow toradiator 1.External gear 11 is formed on the outer surface ofblade ring 10. - Stays 8 are fixed to
fan cover 2 in order to support the housing in whichmotor 7 is received. Accordingly, each of the stays has a small diameter so that a sufficient space is ensured and airflow is not prevented whenmotor 7 is driven. For example,stays 8 are fixed to the fan cover at 90° intervals. - Driving
motor 7 may have a capacity to rotate thefan 6 at 1000 rpm or less in consideration of fan noise. -
Blades 9 may be made of polyacetylene 66 or polypropylene, and the number of the blades is selected in consideration of the entire performance of the motor. -
Blade ring 10 andexternal gear 11 may be made of aluminum, or any light material. - Dummy
fan 13 includes abearing support shaft 14,blades 16, ablade ring 17, and anexternal gear 18. The bearing support shaft freely rotates using a bearing received in a housing that is supported by stays 15 fixed tofan cover 2.Blades 16 rotate together with bearingsupport shaft 14 and blow air toradiator 1.Blade ring 17 is attached to ends ofblades 16.External gear 18 is formed on the outer surface ofblade ring 17, and meshes withexternal gear 11 onblade ring 10 to rotatedummy fan 13. - Stays 15 may have a structure similar to that of stays 8 of driven
fan 6. - The bearing provided on bearing
support shaft 14 allowsdummy fan 13 to rotate with a small force of drivingmotor 7 at low rpm. -
Blades 16 may be made of polyacetylene 66 or polypropylene.Blade ring 17 andexternal gear 18 may be made of aluminum or any light material. -
External gears - The number of
blades fan 6 anddummy fan 13 is determined depending on the gear ratio, to avoid resonance ofblades - In one example, the gear ratio of d:D is 7:10, the number of
blades 9 of drivenfan 6 is 5, and the number ofblades 16 ofdummy fan 13 is 6. A drivingmotor 7 having capacity of 100 W is used, and the motor speed is 1200 rpm at 12V. Main components of peak values of drivenfan 6 are experimentally 100 Hz and 200 Hz.Dummy fan 13 is rotated at 840 rpm, and main components of peak values are 84 Hz and 168 Hz. - While this invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (13)
1. A fan system, comprising:
a motor;
a driven fan configured to be rotated by the motor; and
a dummy fan configured to be rotated by the driven fan;
wherein the fans are configured such that when the driven fan is not rotated by the motor, the fans are rotated by ambient air that is moving relative to the fans.
2. The system as defined in claim 1 , wherein a diameter of the dummy fan is larger than a diameter of the driven fan.
3. The system as defined in claim 1 , further comprising a radiator, wherein the fans are configured to blow air toward the radiator.
4. The system as defined in claim 3 , wherein the fans are attached to a fan cover provided at a front side of the radiator.
5. A fan system, comprising:
a motor;
a driven fan, driven by the motor and comprising a first blade ring at an external surface thereof; and
a dummy fan configured to rotate freely around a bearing support shaft, and comprising a second blade ring at an external surface thereof;
wherein the blade rings each comprise gears, such that the blade rings are engaged with each other, such that rotation of the driven fan rotates the dummy fan.
6. The system as defined in claim 5 , wherein the driven fan is disposed near a transmission, and the dummy fan is disposed near an engine.
7. The system as defined in claim 5 , wherein a ratio of a diameter of the driven fan to a diameter of the dummy fan is approximately 7:10.
8. The system as defined in claim 5 , wherein the driven fan comprises a first number of fan blades, and the dummy fan comprises a second, larger number of fan blades.
9. The system as defined in claim 8 , wherein the first number is 5 and the second number is 6.
10. The system as defined in claim 5 , wherein the fans each comprise fan blades comprising polyacetylene 66 or polypropylene.
11. The system as defined in claim 5 , wherein a gear ratio of the gears of the driven fan to the gears of the dummy fan is approximately 10:7.
12. The system as defined in claim 5 , wherein the blade rings comprise aluminum.
13. The system as defined in claim 5 , wherein the gears comprise aluminum.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070067895A KR20090004021A (en) | 2007-07-06 | 2007-07-06 | Single motor driven dual cooling fans system |
KR10-2007-0067895 | 2007-07-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090199791A1 true US20090199791A1 (en) | 2009-08-13 |
Family
ID=40486559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/949,372 Abandoned US20090199791A1 (en) | 2007-07-06 | 2007-12-03 | Dual cooling fan system driven by single motor |
Country Status (2)
Country | Link |
---|---|
US (1) | US20090199791A1 (en) |
KR (1) | KR20090004021A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090143002A1 (en) * | 2007-11-30 | 2009-06-04 | Sun Microsystem, Inc. | Computer system airflow optimization and configuration device |
EP2414651A1 (en) * | 2009-03-31 | 2012-02-08 | Robert Bosch GmbH | Double fan for a heat exchanger, in particular a coolant radiator of a motor vehicle |
FR2968042A1 (en) * | 2010-11-25 | 2012-06-01 | Peugeot Citroen Automobiles Sa | Pumping system for use in drive system for pumping fuel to internal combustion engine i.e. diesel engine, has fuel pumping elements, and movable units of pumping elements is activated by single actuator i.e. direct current electric motor |
EP3156875A1 (en) * | 2015-10-16 | 2017-04-19 | Giga-Byte Technology Co., Ltd. | Heat dissipation module, display card assembly and electronic device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101455711B1 (en) * | 2012-08-31 | 2014-10-28 | 한라비스테온공조 주식회사 | Fan and Shroud Assembly |
KR101719631B1 (en) | 2013-02-06 | 2017-04-04 | 한온시스템 주식회사 | Fan and Shroud Assemble |
KR102496697B1 (en) * | 2016-12-16 | 2023-02-06 | 현대자동차주식회사 | Heat exchanger cooling system |
KR102647528B1 (en) | 2019-02-25 | 2024-03-15 | 한온시스템 주식회사 | Cooling fan |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2878991A (en) * | 1957-07-15 | 1959-03-24 | Issy Berman And Rosalie Berman | Auxiliary fan attachment |
US5826549A (en) * | 1995-12-06 | 1998-10-27 | Behr Gmbh & Co. | Tandem fan for motor-vehicle radiators |
US6817831B2 (en) * | 2002-03-15 | 2004-11-16 | Robert Bosch Corporation | Engine-cooling fan assembly with overlapping fans |
-
2007
- 2007-07-06 KR KR1020070067895A patent/KR20090004021A/en not_active Application Discontinuation
- 2007-12-03 US US11/949,372 patent/US20090199791A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2878991A (en) * | 1957-07-15 | 1959-03-24 | Issy Berman And Rosalie Berman | Auxiliary fan attachment |
US5826549A (en) * | 1995-12-06 | 1998-10-27 | Behr Gmbh & Co. | Tandem fan for motor-vehicle radiators |
US6817831B2 (en) * | 2002-03-15 | 2004-11-16 | Robert Bosch Corporation | Engine-cooling fan assembly with overlapping fans |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090143002A1 (en) * | 2007-11-30 | 2009-06-04 | Sun Microsystem, Inc. | Computer system airflow optimization and configuration device |
EP2414651A1 (en) * | 2009-03-31 | 2012-02-08 | Robert Bosch GmbH | Double fan for a heat exchanger, in particular a coolant radiator of a motor vehicle |
US20120063887A1 (en) * | 2009-03-31 | 2012-03-15 | Robert Bosch Gmbh | Double fan for a heat exchanger, in particular a coolant radiator of a motor vehicle |
FR2968042A1 (en) * | 2010-11-25 | 2012-06-01 | Peugeot Citroen Automobiles Sa | Pumping system for use in drive system for pumping fuel to internal combustion engine i.e. diesel engine, has fuel pumping elements, and movable units of pumping elements is activated by single actuator i.e. direct current electric motor |
EP3156875A1 (en) * | 2015-10-16 | 2017-04-19 | Giga-Byte Technology Co., Ltd. | Heat dissipation module, display card assembly and electronic device |
US20170108901A1 (en) * | 2015-10-16 | 2017-04-20 | Giga-Byte Technology Co.,Ltd. | Heat dissipation module, display card assembly and electronic device |
US9904332B2 (en) * | 2015-10-16 | 2018-02-27 | Giga-Byte Technology Co., Ltd. | Heat dissipation module, display card assembly and electronic device |
RU2659089C2 (en) * | 2015-10-16 | 2018-06-28 | Гига-Байт Текнолоджи Ко., Лтд. | Heat dissipation module, video card unit and electronic device |
Also Published As
Publication number | Publication date |
---|---|
KR20090004021A (en) | 2009-01-12 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: HYUNDAI MOTOR COMPANY, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KIM, KYUNGTAE;REEL/FRAME:020188/0329 Effective date: 20071118 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |