US20110150639A1 - Fan Device - Google Patents
Fan Device Download PDFInfo
- Publication number
- US20110150639A1 US20110150639A1 US12/778,477 US77847710A US2011150639A1 US 20110150639 A1 US20110150639 A1 US 20110150639A1 US 77847710 A US77847710 A US 77847710A US 2011150639 A1 US2011150639 A1 US 2011150639A1
- Authority
- US
- United States
- Prior art keywords
- air
- fan
- blades
- guiding
- receiving space
- 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
- 230000005534 acoustic noise Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000005259 measurement Methods 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
- 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
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/328—Rotors specially for elastic fluids for axial flow pumps for axial flow fans with unequal distribution of blades around the hub
-
- 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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- 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
-
- 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
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
- F04D29/544—Blade shapes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Definitions
- the invention relates to a fan device, and more particularly to a fan device capable of reducing acoustic noise.
- a conventional fan device includes a fan impeller mounted in a fan housing.
- the fan impeller includes a hub body, and a plurality of angularly spaced apart fan blades extending outwardly and radially from the hub body.
- greater acoustic noise occurs during rotation of the fan impeller at a speed within a certain speed range.
- an object of the present invention is to provide a fan device that can overcome the aforesaid drawback of the prior art.
- a fan device comprises:
- a fan housing configured with a receiving space, and having a bottom wall formed with an air inlet in spatial communication with the receiving space, a top wall formed with an air outlet in spatial communication with the receiving space, and a surrounding side wall transverse to and interconnecting the top and bottom walls, and cooperating with the top and bottom walls to define the receiving space thereamong;
- a fan impeller mounted in the receiving space in the fan housing, disposed adjacent to the air outlet in the top wall of the fan housing, and operable to rotate about a central axis that is transverse to the top and bottom walls of the fan housing, the fan impeller including a hub body disposed coaxially with the central axis, and a plurality of angularly spaced apart fan blades extending outwardly and radially from the hub body, an angular distance between each adjacent pair of the fan blades being different from that of any other adjacent pair of the fan blades.
- FIG. 1 is a schematic top view showing the first preferred embodiment of a fan device according to the present invention
- FIG. 2 is a schematic sectional view of the first preferred embodiment taken along line II-II in FIG. 1 ;
- FIG. 3 is a schematic bottom view showing the second preferred embodiment of a fan device according to the present invention.
- FIG. 4 is a perspective view showing the second preferred embodiment without a fan impeller
- FIG. 5 is a partly schematic sectional view showing the second preferred embodiment
- FIG. 6 is a schematic top view showing the third preferred embodiment of a fan device according to the present invention without a fan impeller.
- FIG. 7 is a schematic top view showing a variation of the third preferred embodiment.
- the first preferred embodiment of a fan device according to the present invention is shown to include a fan housing 1 , and a fan impeller 2 .
- the fan housing 1 is configured with a receiving space 10 , and has a bottom wall 11 , a top wall 12 and a surrounding side wall 13 .
- the bottom wall 11 is formed with an air inlet 111 in spatial communication with the receiving space 10 .
- the top wall 12 is formed with an air outlet 121 in spatial communication with the receiving space 10 .
- the surrounding side wall 13 is transverse to and interconnects the top and bottom walls 12 , 11 , and cooperates with the top and bottom walls 12 , 11 to define the receiving space 10 thereamong.
- the fan housing 1 further includes a connecting member 14 and a plurality of connecting ribs 15 .
- the connecting member 14 is placed in the receiving space 10 , and is disposed adjacent to the air inlet 111 .
- the connecting ribs 15 interconnect the connecting member 14 and the surrounding side wall 131 .
- the fan impeller 2 is mounted in the receiving space 10 in the fan housing 1 , is disposed adjacent to the air outlet 121 in the top wall 12 of the fan housing 1 , and is operable to rotate about a central axis (X) that is transverse to the top and bottom walls 12 , 11 .
- the fan impeller 2 includes a hub body 21 , and a plurality of fan blades 22 extending outwardly and radially from the hub body 21 . It is noted that an angular distance ( ⁇ ) between each adjacent pair of the fan blades 22 is different from that of any other adjacent pair of the fan blades 22 . An air passage is formed between each adjacent pair of the fan blades 22 .
- rotation of the fan impeller 2 draws air to flow from the air inlet 111 toward the air outlet 121 through the air passages, as indicated by solid-line arrows in FIG. 2 .
- acoustic noise about 25.1 dB caused by the fan device of the present invention during operation is less than that (about 45.9 dB) of the conventional fan device with angularly equidistant fan blades. Therefore, the fan device of the present invention can be operated with reduced acoustic noise.
- FIGS. 3 to 5 illustrate the second preferred embodiment of a fan device according to this invention, which is a modification of the first preferred embodiment.
- the connecting member 14 and the connecting ribs 15 are dispensed with.
- the fan device further includes an air-guiding unit 3 .
- the air-guiding unit 3 is mounted fixedly in the receiving space 10 in the fan housing 1 , and is disposed adjacent to the air inlet 111 in the bottom wall 11 of the fan housing 1 .
- the air-guiding unit 3 includes a center connecting member 31 disposed coaxially with the central axis (X) , and a plurality of air-guiding blades angularly spaced apart from each other and interconnecting the central connecting member 31 and the surrounding side wall 13 of the fan housing 1 .
- An angular distance ( ⁇ ) between each adjacent pair of the air-guiding blades 32 is different from that of any other adjacent pair of the air-guiding blades 32 .
- the center connecting member 31 includes a circular cap body 312 , and a tube body 311 extending integrally from the cap body 312 toward the hub body 21 and disposed coaxially with the central axis (X).
- FIG. 6 illustrates the third preferred embodiment of a fan device according to this invention, which is a modification of the second preferred embodiment.
- the air-guiding unit 3 ′ further includes a plurality of auxiliary air-guiding blades 33 extending inwardly and radially from the surrounding side wall 13 of the fan housing 1 toward the central connecting member 31 .
- Each auxiliary air-guiding blade 33 is disposed between a corresponding adjacent pair of the air-guiding blades 32 , and is spaced apart from the corresponding adjacent pair of the air-guiding blades 32 and the central connecting member 31 .
- the auxiliary air-guiding blades 33 have the same length.
- FIG. 7 illustrates a variation of the third preferred embodiment, wherein each of the auxiliary air-guiding blades 33 of the air-guiding unit 3 ′ has a length different from that of any other one of the auxiliary air-guiding blades 33 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A fan device includes: a fan housing configured with a receiving space defined among opposite top and bottom walls, and a surrounding side wall; and a fan impeller mounted in the receiving space, disposed adjacent to an air outlet in the top wall and operable to rotate about a central axis transverse to the top and bottom walls of the fan housing. The fan impeller includes a hub body disposed coaxially with the central axis, and a plurality of angularly spaced apart fan blades extending outwardly and radially from the hub body. An angular distance between each adjacent pair of the fan blades is different from that of any other adjacent pair of the fan blades.
Description
- This application claims priority of Taiwanese Application No. 098143619, filed on Dec. 18, 2009.
- 1. Field of the Invention
- The invention relates to a fan device, and more particularly to a fan device capable of reducing acoustic noise.
- 2. Description of the Related Art
- A conventional fan device includes a fan impeller mounted in a fan housing. The fan impeller includes a hub body, and a plurality of angularly spaced apart fan blades extending outwardly and radially from the hub body. However, in such a configuration, greater acoustic noise occurs during rotation of the fan impeller at a speed within a certain speed range.
- Therefore, an object of the present invention is to provide a fan device that can overcome the aforesaid drawback of the prior art.
- According to the present invention, a fan device comprises:
- a fan housing configured with a receiving space, and having a bottom wall formed with an air inlet in spatial communication with the receiving space, a top wall formed with an air outlet in spatial communication with the receiving space, and a surrounding side wall transverse to and interconnecting the top and bottom walls, and cooperating with the top and bottom walls to define the receiving space thereamong; and
- a fan impeller mounted in the receiving space in the fan housing, disposed adjacent to the air outlet in the top wall of the fan housing, and operable to rotate about a central axis that is transverse to the top and bottom walls of the fan housing, the fan impeller including a hub body disposed coaxially with the central axis, and a plurality of angularly spaced apart fan blades extending outwardly and radially from the hub body, an angular distance between each adjacent pair of the fan blades being different from that of any other adjacent pair of the fan blades.
- Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, of which:
-
FIG. 1 is a schematic top view showing the first preferred embodiment of a fan device according to the present invention; -
FIG. 2 is a schematic sectional view of the first preferred embodiment taken along line II-II inFIG. 1 ; -
FIG. 3 is a schematic bottom view showing the second preferred embodiment of a fan device according to the present invention; -
FIG. 4 is a perspective view showing the second preferred embodiment without a fan impeller; -
FIG. 5 is a partly schematic sectional view showing the second preferred embodiment; -
FIG. 6 is a schematic top view showing the third preferred embodiment of a fan device according to the present invention without a fan impeller; and -
FIG. 7 is a schematic top view showing a variation of the third preferred embodiment. - Before the present invention is described in greater detail, it should be noted that like elements are denoted by the same reference numerals throughout the disclosure.
- Referring to
FIGS. 1 and 2 , the first preferred embodiment of a fan device according to the present invention is shown to include afan housing 1, and afan impeller 2. - The
fan housing 1 is configured with areceiving space 10, and has abottom wall 11, atop wall 12 and a surroundingside wall 13. Thebottom wall 11 is formed with anair inlet 111 in spatial communication with thereceiving space 10. Thetop wall 12 is formed with anair outlet 121 in spatial communication with thereceiving space 10. The surroundingside wall 13 is transverse to and interconnects the top andbottom walls bottom walls receiving space 10 thereamong. In this embodiment, thefan housing 1 further includes a connectingmember 14 and a plurality of connectingribs 15. The connectingmember 14 is placed in thereceiving space 10, and is disposed adjacent to theair inlet 111. The connectingribs 15 interconnect the connectingmember 14 and the surrounding side wall 131. - The
fan impeller 2 is mounted in thereceiving space 10 in thefan housing 1, is disposed adjacent to theair outlet 121 in thetop wall 12 of thefan housing 1, and is operable to rotate about a central axis (X) that is transverse to the top andbottom walls fan impeller 2 includes ahub body 21, and a plurality offan blades 22 extending outwardly and radially from thehub body 21. It is noted that an angular distance (Φ) between each adjacent pair of thefan blades 22 is different from that of any other adjacent pair of thefan blades 22. An air passage is formed between each adjacent pair of thefan blades 22. - In use, rotation of the
fan impeller 2 draws air to flow from theair inlet 111 toward theair outlet 121 through the air passages, as indicated by solid-line arrows inFIG. 2 . - Since the angular distances (Φ) are different from each other, noise with different frequencies occurs when air flows through the air passages, thereby avoiding accumulation of noise with the same frequency. According to experimental measurement results, acoustic noise about 25.1 dB caused by the fan device of the present invention during operation is less than that (about 45.9 dB) of the conventional fan device with angularly equidistant fan blades. Therefore, the fan device of the present invention can be operated with reduced acoustic noise.
-
FIGS. 3 to 5 illustrate the second preferred embodiment of a fan device according to this invention, which is a modification of the first preferred embodiment. As composed to the first preferred embodiment, the connectingmember 14 and the connectingribs 15 are dispensed with. Furthermore, the fan device further includes an air-guidingunit 3. - The air-guiding
unit 3 is mounted fixedly in thereceiving space 10 in thefan housing 1, and is disposed adjacent to theair inlet 111 in thebottom wall 11 of thefan housing 1. The air-guidingunit 3 includes acenter connecting member 31 disposed coaxially with the central axis (X) , and a plurality of air-guiding blades angularly spaced apart from each other and interconnecting the central connectingmember 31 and the surroundingside wall 13 of thefan housing 1. An angular distance (θ) between each adjacent pair of the air-guidingblades 32 is different from that of any other adjacent pair of the air-guidingblades 32. In this embodiment, thecenter connecting member 31 includes a circular cap body 312, and atube body 311 extending integrally from the cap body 312 toward thehub body 21 and disposed coaxially with the central axis (X). - When the
fan impeller 2 is driven to rotate, air flowing from theair inlet 111 is guided by the air-guidingblades 32, and then flows toward theair outlet 121 through the air passages, as indicated by solid-line arrows inFIG. 5 . Therefore, due to the presence of the air-guidingunit 3, air pressure produced by the fan device can be enhanced. Furthermore, since the angular distances (θ) are different from each other, acoustic noise caused by the fan device can be further reduced. -
FIG. 6 illustrates the third preferred embodiment of a fan device according to this invention, which is a modification of the second preferred embodiment. As compared to the second preferred embodiment, the air-guidingunit 3′ further includes a plurality of auxiliary air-guidingblades 33 extending inwardly and radially from the surroundingside wall 13 of thefan housing 1 toward the central connectingmember 31. Each auxiliary air-guidingblade 33 is disposed between a corresponding adjacent pair of the air-guidingblades 32, and is spaced apart from the corresponding adjacent pair of the air-guidingblades 32 and the central connectingmember 31. In this embodiment, the auxiliary air-guidingblades 33 have the same length. -
FIG. 7 illustrates a variation of the third preferred embodiment, wherein each of the auxiliary air-guidingblades 33 of the air-guidingunit 3′ has a length different from that of any other one of the auxiliary air-guidingblades 33. - While the present invention has been described in connection with what are considered the most practical and preferred embodiments, it is understood that this invention is not limited to the disclosed embodiments but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
Claims (5)
1. A fan device comprising:
a fan housing configured with a receiving space, and having a bottom wall formed with an air inlet in spatial communication with said receiving space, a top wall formed with an air outlet in spatial communication with said receiving space, and a surrounding side wall transverse to and interconnecting said top and bottom walls, and cooperating with said top and bottom walls to define said receiving space thereamong; and
a fan impeller mounted in said receiving space in said fan housing, disposed adjacent to said air outlet in said top wall of said fan housing, and operable to rotate about a central axis that is transverse to said top and bottom walls of said fan housing, said fan impeller including a hub body disposed coaxially with the central axis, and a plurality of angularly spaced apart fan blades extending outwardly and radially from said hub body, an angular distance between each adjacent pair of said fan blades being different from that of any other adjacent pair of said fan blades.
2. The fan device as claimed in claim 1 , further comprising an air-guiding unit mounted fixedly in said receiving space in said fan housing and disposed adjacent to said air inlet in said bottom wall of said fan housing, said air-guiding unit including a center connecting member disposed coaxially with the central axis, and a plurality of air-guiding blades angularly spaced apart from each other and interconnecting said central connecting member and said surrounding side wall of said fan housing, an angular distance between each adjacent pair of said air-guiding blades being different from that of any other adjacent pair of said air-guiding blades.
3. The fan device as claimed in claim 2 , wherein said air-guiding unit further includes a plurality of auxiliary air-guiding blades extending inwardly and radially from said surrounding side wall of said fan housing toward said central connecting member, each of said auxiliary air-guiding blades being disposed between a corresponding adjacent pair of said air-guiding blades and being spaced apart from the corresponding adjacent pair of said air-guiding blades and said central connecting member.
4. The fan device as claimed in claim 3 , wherein said auxiliary air-guiding blades of said air-guiding unit have the same length.
5. The fan device as claimed in claim 3 , wherein each of said auxiliary air-guiding blades of said air-guiding unit has a length different from that of any other one of said auxiliary air-guiding blades.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW098143619A TWI398579B (en) | 2009-12-18 | 2009-12-18 | A cooling fan with reduced noise |
TW098143619 | 2009-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110150639A1 true US20110150639A1 (en) | 2011-06-23 |
Family
ID=42575795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/778,477 Abandoned US20110150639A1 (en) | 2009-12-18 | 2010-05-12 | Fan Device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20110150639A1 (en) |
EP (1) | EP2336569B1 (en) |
TW (1) | TWI398579B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103573717A (en) * | 2012-07-24 | 2014-02-12 | 德昌电机(深圳)有限公司 | Fan and impeller thereof |
USD732655S1 (en) * | 2013-11-21 | 2015-06-23 | Sanyo Denki Co., Ltd. | Fan |
US20190063464A1 (en) * | 2017-08-31 | 2019-02-28 | Ford Global Technologies, Llc | Engine cooling fans with uneven blade spacing |
JP2019105269A (en) * | 2017-11-15 | 2019-06-27 | ブローゼ・ファールツォイクタイレ・ゲーエムベーハー・ウント・コンパニ・コマンディットゲゼルシャフト・ヴュルツブルク | Cooling fan module |
US11236760B2 (en) * | 2015-12-11 | 2022-02-01 | Delta Electronics, Inc. | Impeller and fan |
US11585357B1 (en) * | 2021-12-27 | 2023-02-21 | Yen Sun Technology Corp. | Shock absorbing fan casing |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103133429B (en) * | 2011-12-05 | 2015-09-09 | 奇鋐科技股份有限公司 | blade-free fan structure |
CN204213047U (en) * | 2014-10-24 | 2015-03-18 | 常州格力博有限公司 | Axial-flow blower fan blade |
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US2950859A (en) * | 1956-12-03 | 1960-08-30 | Meier Electric And Machine Com | Fan housing and protective grill |
US6139275A (en) * | 1998-07-28 | 2000-10-31 | Kabushiki Kaisha Toshiba | Impeller for use in cooling dynamoelectric machine |
US7029227B2 (en) * | 2001-05-11 | 2006-04-18 | Snecma Moteurs | Structure comprising a rotor and fixed perturbation sources and method for reducing vibrations in said structure |
US20070048129A1 (en) * | 2005-08-24 | 2007-03-01 | Delta Electronics, Inc. | Fan and fan housing with airflow-guiding stationary blades |
US20070224045A1 (en) * | 2006-03-27 | 2007-09-27 | Valeo, Inc. | Vehicle cooling fan |
US20090081036A1 (en) * | 2007-04-12 | 2009-03-26 | Nidec Corporation | Axial flow fan |
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JPS4924005B1 (en) * | 1967-09-28 | 1974-06-20 | ||
DE7931621U1 (en) * | 1978-12-06 | 1980-06-19 | Ford-Werke Ag, 5000 Koeln | FAN WHEEL FOR COMBUSTION ENGINES |
JPS5685594A (en) * | 1979-12-17 | 1981-07-11 | Matsushita Seiko Co Ltd | Fan of unequal interval |
JP4075264B2 (en) * | 2000-01-28 | 2008-04-16 | セイコーエプソン株式会社 | Axial fan, centrifugal fan, and electronic equipment using them |
TW200639327A (en) * | 2005-05-13 | 2006-11-16 | Delta Electronics Inc | Heat-dissipating device and frame thereof |
DE102005023868C5 (en) * | 2005-05-24 | 2008-05-21 | Minebea Co., Ltd. | fan |
TWI307742B (en) * | 2006-05-02 | 2009-03-21 | Delta Electronics Inc | Fan and impeller thereof |
KR20080039599A (en) * | 2006-11-01 | 2008-05-07 | 현대자동차주식회사 | Fan structure for a vehicle |
JP2008303778A (en) * | 2007-06-07 | 2008-12-18 | Nippon Densan Corp | Fan device |
-
2009
- 2009-12-18 TW TW098143619A patent/TWI398579B/en not_active IP Right Cessation
-
2010
- 2010-05-12 US US12/778,477 patent/US20110150639A1/en not_active Abandoned
- 2010-05-25 EP EP10163729A patent/EP2336569B1/en not_active Not-in-force
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2950859A (en) * | 1956-12-03 | 1960-08-30 | Meier Electric And Machine Com | Fan housing and protective grill |
US6139275A (en) * | 1998-07-28 | 2000-10-31 | Kabushiki Kaisha Toshiba | Impeller for use in cooling dynamoelectric machine |
US7029227B2 (en) * | 2001-05-11 | 2006-04-18 | Snecma Moteurs | Structure comprising a rotor and fixed perturbation sources and method for reducing vibrations in said structure |
US20070048129A1 (en) * | 2005-08-24 | 2007-03-01 | Delta Electronics, Inc. | Fan and fan housing with airflow-guiding stationary blades |
US20070224045A1 (en) * | 2006-03-27 | 2007-09-27 | Valeo, Inc. | Vehicle cooling fan |
US20090081036A1 (en) * | 2007-04-12 | 2009-03-26 | Nidec Corporation | Axial flow fan |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103573717A (en) * | 2012-07-24 | 2014-02-12 | 德昌电机(深圳)有限公司 | Fan and impeller thereof |
USD732655S1 (en) * | 2013-11-21 | 2015-06-23 | Sanyo Denki Co., Ltd. | Fan |
US11236760B2 (en) * | 2015-12-11 | 2022-02-01 | Delta Electronics, Inc. | Impeller and fan |
US20190063464A1 (en) * | 2017-08-31 | 2019-02-28 | Ford Global Technologies, Llc | Engine cooling fans with uneven blade spacing |
JP2019105269A (en) * | 2017-11-15 | 2019-06-27 | ブローゼ・ファールツォイクタイレ・ゲーエムベーハー・ウント・コンパニ・コマンディットゲゼルシャフト・ヴュルツブルク | Cooling fan module |
US11585357B1 (en) * | 2021-12-27 | 2023-02-21 | Yen Sun Technology Corp. | Shock absorbing fan casing |
Also Published As
Publication number | Publication date |
---|---|
TWI398579B (en) | 2013-06-11 |
TW201122231A (en) | 2011-07-01 |
EP2336569A1 (en) | 2011-06-22 |
EP2336569B1 (en) | 2012-12-05 |
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Owner name: YEN SUN TECHNOLOGY CORP., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, CHIEN-JUNG;HSU, CHIH-TSUNG;WU, HSIN-HSIEN;REEL/FRAME:024374/0102 Effective date: 20100422 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |