US20080101933A1 - Airflow generating apparatus - Google Patents
Airflow generating apparatus Download PDFInfo
- Publication number
- US20080101933A1 US20080101933A1 US11/581,453 US58145306A US2008101933A1 US 20080101933 A1 US20080101933 A1 US 20080101933A1 US 58145306 A US58145306 A US 58145306A US 2008101933 A1 US2008101933 A1 US 2008101933A1
- Authority
- US
- United States
- Prior art keywords
- fixed portion
- airflow
- frame
- hub
- generating apparatus
- 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
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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
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- 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
- F04D29/382—Flexible blades
Definitions
- the present invention relates to an airflow generating apparatus, more particularly, t to an airflow generating apparatus having a blade with one end being a free portion swinging with airflow.
- a Fan is an equipment used to generate airflow, which mainly includes fan blades.
- the fan blades are used to generate a pressure difference to drive a fluid to flow. Therefore, the design of the fan blades is quite important.
- the design of the fan blades has been disclosed in the US Patent Publication No. 3,075,743, U.S. Pat. No. 7,025,569, and No. 20050095131, in which a multi-section fan blade structure is used to reduce the wind resistance and to generate smooth airflow.
- a multi-section fan blade structure is used to reduce the wind resistance and to generate smooth airflow.
- different shapes of fan blades are used to improve the efficiency of generating airflow.
- the above patents cannot generate a compensating mechanism capable of compensating in accordance with difference operating environment and flow fields.
- the present invention is directed to provide an airflow generating apparatus, in which a fan blade has a free portion swinging with the airflow.
- an airflow generating apparatus disclosed in the present invention comprises a hub, a motor, and a plurality of fan blades.
- the motor drives the hub to rotate.
- Each of the fan blades comprises a fixed portion and a free portion connected to the fixed portion.
- the fixed portion on the side facing the hub is fixed on the hub, so that when the hub rotates, the fixed portion generates an axial airflow, and the axial airflow pushes the free portion to swing.
- the fixed portion has a plurality of supporting ribs on one side surface thereof to reinforce the supporting strength of the fixed portion. Further, the fixed portion is made of a hard material, and the free portion is made of a flexible material.
- the airflow generating apparatus further comprises a frame and a plurality of baffles.
- the frame is used to accommodate the hub and the fan blades.
- Each of the baffles comprises a fixed portion and a free portion connected to the fixed portion.
- One side of the fixed portion is fixed on the peripheral side of the frame, and the free portion swings under the push of the axial airflow.
- the fixed portion has a plurality of supporting ribs on one side surface thereof to reinforce the supporting strength of the fixed portion. Further, the fixed portion is made of a hard material, and the free portion is made of a flexible material.
- the frame further comprises a connecting element disposed in the middle of the frame, so that one end of the baffles is connected to the frame, and the other end of the baffles is connected to the connecting element.
- baffles are also totally fixed on the peripheral side of the frame, and are used to guide the axial airflow and cannot swing.
- the present invention further discloses an airflow generating apparatus, which comprises a frame, a hub, a motor, a plurality of fan blades, and a plurality of baffles.
- the motor is disposed in the frame to drive the hub to rotate.
- the plurality of fan blades is connected to the peripheral side of the hub, so that when the hub rotates, the fan blades generate an axial airflow.
- Each of the baffles comprises a fixed portion and a free portion connected to the fixed portion. One side of the fixed portion is fixed on the peripheral side of the frame, and the free portion swings under the push of the axial airflow.
- the fixed portion has a plurality of supporting ribs on one side surface thereof to reinforce the supporting strength of the fixed portion.
- the fixed portion is made of a hard material, and the free portion is made of a flexible material.
- the frame further comprises a connecting element disposed in the middle of the frame, so that one end of the baffles is connected to the frame, and the other end of the baffles is connected to the connecting element.
- the fan blade structure can automatically adjust the swaying angle by the use of the free portion of the fan blade in accordance with the different operating environment, and can change the swaying angle in accordance with different flow fields to provide smooth flow field, thereby improving efficiency and reducing noises.
- the baffle of the fan is design to have a free portion that swings in accordance with different flow fields and to generate a compensating mechanism.
- FIGS. 1A and 1B are a combined schematic view and a top view of the fan blades of the present invention.
- FIG. 2 is a schematic view of the fan blades of the present invention
- FIGS. 3A and 3B are a combined schematic view and a top view of the fan blades according to another embodiment of the present invention.
- FIG. 4 is a combined schematic view of the airflow generating apparatus of the present invention.
- FIG. 5 is a schematic exploded view of the present invention.
- FIGS. 6A and 6B are schematic views of the baffles connected to the frame and the connecting element of the present invention.
- FIGS. 7 and 8 are schematic views of the baffles according to different embodiments of the present invention.
- the present invention is a fan blade structure of an airflow generating apparatus.
- the fan blades 100 are disposed around a hub 300 of an airflow generating apparatus (not shown).
- Each of the fan blades 100 includes a fixed portion 101 and a free portion 102 connected to the fixed portion 101 .
- One side of the fixed portion 101 is fixed on the peripheral side of the hub 300 , and the free portion 102 is not fixed on the peripheral side of the hub 300 .
- the free portion 102 swings with the airflow with respect to the fixed portion 101 .
- FIG. 2 a schematic view of the fan blades of the present invention is shown.
- the fixed portion 101 of a fan blade 100 has a plurality of supporting ribs 103 on one side surface thereof to reinforce the supporting strength of the fixed portion 101 of the fan blade 100 , so that the fan blade 100 can maintain a certain swaying angle.
- the fan blade 100 includes a hard material 105 and a flexible material 107 .
- the hard material 105 is fixed on the peripheral side of the hub 300 to form the fixed portion 101
- the flexible material 107 is connected to one side of the hard material 105 to form an entire fan blade 100 .
- the flexible material 107 at this side becomes the free portion 102 of the fan blade 100 , and swings with the airflow.
- the airflow generating apparatus includes a frame 500 , a motor 700 , a hub 300 , and a plurality of fan blades 100 .
- the motor 700 is fixed in the frame 500
- the hub 300 is connected to the motor 700 and is driven by the motor 700 to rotate.
- the fan blade 100 includes a fixed portion 101 and a free portion 102 connected to the fixed portion 101 .
- One side of the fixed portion is fixed on the peripheral side of the hub 300 , and the free portion 102 is not fixed on the peripheral side of the hub 300 .
- the hub 300 drives the fan blade 100 to rotate, so as to generate an axial airflow along the axial direction of the motor 700 .
- the free portion 102 in the fan blade 100 swings with the axial airflow to generate the smooth airflow.
- Other structures of the fan blade 100 have been described above, and the details will not be described herein again.
- a plurality of baffles 510 can be further added and fixed on one side of the frame 500 .
- Each of the baffles 510 includes a fixed portion 511 and a free portion 512 connected to the fixed portion 511 .
- the fixed portion 511 is fixed on the peripheral side of the frame 500
- the free portion 512 is not fixed on the peripheral side of the frame 500 .
- a connecting element 501 is provided in the middle of the frame 500 , so that one end of a baffle 510 is connected to the frame 500 , and the other end of the baffle 510 is connected to the connecting element 501 , so that the baffles 510 are opposite to the fan blades 100 .
- the baffles 510 are connected to the connecting element 501 in the same manner of being connected to the frame 500 .
- FIG. 6B a schematic view of the baffles according to another embodiment is shown.
- the baffles 510 are totally fixed on the frame 500 and the connecting element 501 , and the baffles 510 cannot swing with the airflow.
- the fixed portion 511 of a baffle 510 has a plurality of supporting ribs 513 on one side surface thereof.
- the supporting ribs 513 are used to reinforce the strength of the baffle 510 .
- the fixed portion 511 of the baffle 510 is made of a hard material 515
- the free portion is made of a flexible material 517 .
- the hard material 515 is fixed on the peripheral side of the frame 500 and the connecting element 501 to form the fixed portion 511
- the flexible material 517 is connected to one side of the hard material 515 but is not fixed on the peripheral side of the frame 500 and the connecting element 501 , such that the flexible material 517 becomes the free portion 512 .
- the flexible material 517 swings with respect to the hard material 515 .
- the free portion 511 swings with the airflow, so as to stabilize the airflow.
- the swaying angle may be automatically adjusted in accordance with the change of the operating environment and the external airflow, thereby improving the efficiency.
- the application fields may include the common radiating fan, the turbo apparatus and the airflow generating equipment having the fan blade.
Abstract
An airflow generating apparatus is provided. Fan blades are disposed around a hub, and one side of a fan blade is partially fixed on the peripheral of the hub, and another portion not fixed on the peripheral side of the hub is a free portion swinging with airflow. Therefore, the airflow generating apparatus employing the fan blades can adjust the swaying angle in accordance with the variation of different flow fields, so as to maintain a smooth airflow.
Description
- 1. Field of Invention
- The present invention relates to an airflow generating apparatus, more particularly, t to an airflow generating apparatus having a blade with one end being a free portion swinging with airflow.
- 2. Related Art
- A Fan is an equipment used to generate airflow, which mainly includes fan blades. The fan blades are used to generate a pressure difference to drive a fluid to flow. Therefore, the design of the fan blades is quite important. The design of the fan blades has been disclosed in the US Patent Publication No. 3,075,743, U.S. Pat. No. 7,025,569, and No. 20050095131, in which a multi-section fan blade structure is used to reduce the wind resistance and to generate smooth airflow. In the US Patent Publication No. 6,948,912 and No. 6,206,641, different shapes of fan blades are used to improve the efficiency of generating airflow. However, the above patents cannot generate a compensating mechanism capable of compensating in accordance with difference operating environment and flow fields.
- In view of the above problems, the present invention is directed to provide an airflow generating apparatus, in which a fan blade has a free portion swinging with the airflow.
- Therefore, in order to achieve the above objective, an airflow generating apparatus disclosed in the present invention comprises a hub, a motor, and a plurality of fan blades. The motor drives the hub to rotate. Each of the fan blades comprises a fixed portion and a free portion connected to the fixed portion. The fixed portion on the side facing the hub is fixed on the hub, so that when the hub rotates, the fixed portion generates an axial airflow, and the axial airflow pushes the free portion to swing.
- The fixed portion has a plurality of supporting ribs on one side surface thereof to reinforce the supporting strength of the fixed portion. Further, the fixed portion is made of a hard material, and the free portion is made of a flexible material.
- The airflow generating apparatus further comprises a frame and a plurality of baffles. The frame is used to accommodate the hub and the fan blades. Each of the baffles comprises a fixed portion and a free portion connected to the fixed portion. One side of the fixed portion is fixed on the peripheral side of the frame, and the free portion swings under the push of the axial airflow.
- The fixed portion has a plurality of supporting ribs on one side surface thereof to reinforce the supporting strength of the fixed portion. Further, the fixed portion is made of a hard material, and the free portion is made of a flexible material.
- The frame further comprises a connecting element disposed in the middle of the frame, so that one end of the baffles is connected to the frame, and the other end of the baffles is connected to the connecting element.
- In addition, the baffles are also totally fixed on the peripheral side of the frame, and are used to guide the axial airflow and cannot swing.
- The present invention further discloses an airflow generating apparatus, which comprises a frame, a hub, a motor, a plurality of fan blades, and a plurality of baffles. The motor is disposed in the frame to drive the hub to rotate. The plurality of fan blades is connected to the peripheral side of the hub, so that when the hub rotates, the fan blades generate an axial airflow. Each of the baffles comprises a fixed portion and a free portion connected to the fixed portion. One side of the fixed portion is fixed on the peripheral side of the frame, and the free portion swings under the push of the axial airflow.
- The fixed portion has a plurality of supporting ribs on one side surface thereof to reinforce the supporting strength of the fixed portion. The fixed portion is made of a hard material, and the free portion is made of a flexible material.
- The frame further comprises a connecting element disposed in the middle of the frame, so that one end of the baffles is connected to the frame, and the other end of the baffles is connected to the connecting element.
- Therefore, according to the airflow generating apparatus of the present invention, the fan blade structure can automatically adjust the swaying angle by the use of the free portion of the fan blade in accordance with the different operating environment, and can change the swaying angle in accordance with different flow fields to provide smooth flow field, thereby improving efficiency and reducing noises. Similarly, the baffle of the fan is design to have a free portion that swings in accordance with different flow fields and to generate a compensating mechanism.
- Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
- The present invention will become more fully understood from the detailed description given herein below for illustration only, and thus are not limitative of the present invention, and wherein:
-
FIGS. 1A and 1B are a combined schematic view and a top view of the fan blades of the present invention; -
FIG. 2 is a schematic view of the fan blades of the present invention; -
FIGS. 3A and 3B are a combined schematic view and a top view of the fan blades according to another embodiment of the present invention; -
FIG. 4 is a combined schematic view of the airflow generating apparatus of the present invention; -
FIG. 5 is a schematic exploded view of the present invention; -
FIGS. 6A and 6B are schematic views of the baffles connected to the frame and the connecting element of the present invention; and -
FIGS. 7 and 8 are schematic views of the baffles according to different embodiments of the present invention. - Referring to
FIGS. 1A and 1B , a combined schematic view and a top view of the fan blades of the present invention are shown. As shown inFIGS. 1A and 1B , the present invention is a fan blade structure of an airflow generating apparatus. Thefan blades 100 are disposed around ahub 300 of an airflow generating apparatus (not shown). Each of thefan blades 100 includes afixed portion 101 and afree portion 102 connected to thefixed portion 101. One side of thefixed portion 101 is fixed on the peripheral side of thehub 300, and thefree portion 102 is not fixed on the peripheral side of thehub 300. Thefree portion 102 swings with the airflow with respect to the fixedportion 101. - Referring to
FIG. 2 , a schematic view of the fan blades of the present invention is shown. As shown inFIG. 2 , thefixed portion 101 of afan blade 100 has a plurality of supportingribs 103 on one side surface thereof to reinforce the supporting strength of the fixedportion 101 of thefan blade 100, so that thefan blade 100 can maintain a certain swaying angle. - Referring to
FIGS. 3A and 3B , a combined schematic view and a top view of the fan blades according to another embodiment are shown. As shown inFIGS. 3A and 3B , thefan blade 100 includes ahard material 105 and aflexible material 107. Thehard material 105 is fixed on the peripheral side of thehub 300 to form the fixedportion 101, and theflexible material 107 is connected to one side of thehard material 105 to form anentire fan blade 100. Theflexible material 107 at this side becomes thefree portion 102 of thefan blade 100, and swings with the airflow. - Referring to
FIGS. 4 , 5 and 6A, a combined schematic view and a schematic exploded view of the airflow generating apparatus of the present invention, and a schematic view of the baffles connected to the frame and the connecting element. As shown inFIG. 4 , the present invention is an airflow generating apparatus are shown. The airflow generating apparatus includes aframe 500, amotor 700, ahub 300, and a plurality offan blades 100. Themotor 700 is fixed in theframe 500, and thehub 300 is connected to themotor 700 and is driven by themotor 700 to rotate. Thefan blade 100 includes a fixedportion 101 and afree portion 102 connected to the fixedportion 101. One side of the fixed portion is fixed on the peripheral side of thehub 300, and thefree portion 102 is not fixed on the peripheral side of thehub 300. When themotor 700 drives thehub 300 to rotate, thehub 300 drives thefan blade 100 to rotate, so as to generate an axial airflow along the axial direction of themotor 700. Thefree portion 102 in thefan blade 100 swings with the axial airflow to generate the smooth airflow. Other structures of thefan blade 100 have been described above, and the details will not be described herein again. As shown inFIGS. 5 and 6A , a plurality ofbaffles 510 can be further added and fixed on one side of theframe 500. Each of thebaffles 510 includes a fixedportion 511 and afree portion 512 connected to the fixedportion 511. The fixedportion 511 is fixed on the peripheral side of theframe 500, and thefree portion 512 is not fixed on the peripheral side of theframe 500. A connectingelement 501 is provided in the middle of theframe 500, so that one end of abaffle 510 is connected to theframe 500, and the other end of thebaffle 510 is connected to the connectingelement 501, so that thebaffles 510 are opposite to thefan blades 100. Thebaffles 510 are connected to the connectingelement 501 in the same manner of being connected to theframe 500. When thehub 300 rotates, thefan blades 100 are driven to rotate to generate the axial airflow, and thefree portion 512 of thebaffle 510 swings with the axial airflow, so as to improve the efficiency of generating airflow and stabilize the airflow. - Referring to
FIG. 6B , a schematic view of the baffles according to another embodiment is shown. As shown inFIG. 6B , thebaffles 510 are totally fixed on theframe 500 and the connectingelement 501, and thebaffles 510 cannot swing with the airflow. - Referring to
FIGS. 7 and 8 , the schematic views of the baffles according to different embodiments of the present invention are shown. As shown inFIG. 6 , the fixedportion 511 of abaffle 510 has a plurality of supportingribs 513 on one side surface thereof. The supportingribs 513 are used to reinforce the strength of thebaffle 510. As shown inFIG. 7 , the fixedportion 511 of thebaffle 510 is made of ahard material 515, and the free portion is made of aflexible material 517. Thehard material 515 is fixed on the peripheral side of theframe 500 and the connectingelement 501 to form the fixedportion 511, and theflexible material 517 is connected to one side of thehard material 515 but is not fixed on the peripheral side of theframe 500 and the connectingelement 501, such that theflexible material 517 becomes thefree portion 512. Theflexible material 517 swings with respect to thehard material 515. Thefree portion 511 swings with the airflow, so as to stabilize the airflow. The swaying angle may be automatically adjusted in accordance with the change of the operating environment and the external airflow, thereby improving the efficiency. - Therefore, for the airflow generating apparatus of the present invention, the application fields may include the common radiating fan, the turbo apparatus and the airflow generating equipment having the fan blade.
- The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims (12)
1. An airflow generating apparatus, comprising:
a hub;
a motor, driving the hub to rotate; and
a plurality of fan blades, wherein each of the fan blades comprises a fixed portion and a free portion connected to the fixed portion, the fixed portion on a side facing the hub is fixed on the hub, so that when the hub rotates, the fixed portion generates an axial airflow, and the axial airflow pushes the free portion to swing.
2. The airflow generating apparatus as claimed in claim 1 , wherein the fixed portion of each fan blade has a plurality of supporting ribs to reinforce the strength of the fixed portion.
3. The airflow generating apparatus as claimed in claim 1 , wherein the fixed portion is made of a hard material and the free portion is made of a flexible material.
4. The airflow generating apparatus as claimed in claim 1 , further comprising:
a frame, for accommodating the hub and the fan blade; and
a plurality of baffles, wherein each of the baffles comprises a fixed portion and a free portion connected to the fixed portion, one side of the fixed portion is fixed on the peripheral side of the frame, and the free portion swings under the push of the axial airflow.
5. The airflow generating apparatus as claimed in claim 4 , wherein the fixed portion has a plurality of supporting ribs on one side surface thereof to reinforce the strength of the fixed portion.
6. The airflow generating apparatus as claimed in claim 4 , wherein the fixed portion is made of a hard material, and the free portion is made of a flexible material.
7. The airflow generating apparatus as claimed in claim 4 , wherein the frame further comprises a connecting element disposed in the middle of the frame, so that one end of the baffles is connected to the frame, and the other end of the baffles is connected to the connecting element.
8. The airflow generating apparatus as claimed in claim 1 , further comprising:
a frame, for accommodating the hub and the fan blade; and
a plurality of baffles, wherein each of the baffles is fixed on the peripheral side of the frame and guides the axial airflow.
9. An airflow generating apparatus, comprising:
a frame;
a hub;
a motor, disposed in the frame, for driving the hub to rotate;
a plurality of fan blades, connected to the peripheral side of the hub, so that when the hub rotates, the fan blades generate an axial airflow; and
a plurality of baffles, wherein each of the baffles comprises a fixed portion and a free portion connected to the fixed portion, one side of the fixed portion is fixed on the peripheral side of the frame, and the free portion swings under the pushed of the axial airflow.
10. The airflow generating apparatus as claimed in claim 9 , wherein the fixed portion has a plurality of supporting ribs on one side surface thereof to reinforce the strength of the fixed portion.
11. The airflow generating apparatus as claimed in claim 9 , wherein the fixed portion is made of a hard material, and the free portion is made of a flexible material.
12. The airflow generating apparatus as claimed in claim 9 , wherein the frame further comprises a connecting element disposed in the middle of the frame, so that one end of the baffles is connected to the frame, and the other end of the baffles is connected to the connecting element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/581,453 US20080101933A1 (en) | 2006-10-17 | 2006-10-17 | Airflow generating apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/581,453 US20080101933A1 (en) | 2006-10-17 | 2006-10-17 | Airflow generating apparatus |
Publications (1)
Publication Number | Publication Date |
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US20080101933A1 true US20080101933A1 (en) | 2008-05-01 |
Family
ID=39330386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/581,453 Abandoned US20080101933A1 (en) | 2006-10-17 | 2006-10-17 | Airflow generating apparatus |
Country Status (1)
Country | Link |
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US (1) | US20080101933A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014216266A1 (en) * | 2014-07-23 | 2016-01-28 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Shovel for a wheel |
USD910834S1 (en) * | 2018-12-05 | 2021-02-16 | Asia Vital Components Co., Ltd. | Impeller for a fan |
CN114526252A (en) * | 2022-02-22 | 2022-05-24 | 宁波公牛生活电器有限公司 | Fan blade, fan and invisible fan lamp |
Citations (13)
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US2033345A (en) * | 1931-03-04 | 1936-03-10 | Roger K Lee | Fan blade |
US2251887A (en) * | 1938-06-13 | 1941-08-05 | Master Electric Co | Flexible fan unit |
US3075743A (en) * | 1958-10-20 | 1963-01-29 | Gen Dynamics Corp | Turbo-machine with slotted blades |
US3728043A (en) * | 1972-01-12 | 1973-04-17 | Fram Corp | Flexible blade fan with ribbed blades |
US3782853A (en) * | 1970-10-09 | 1974-01-01 | Bosch Gmbh Robert | Fan blade assembly |
US3850545A (en) * | 1972-09-07 | 1974-11-26 | Hayes Albion Corp | Flex fan |
US4105366A (en) * | 1975-05-12 | 1978-08-08 | Wallace Murray Corporation | Twisted flex fan |
US4571156A (en) * | 1984-03-05 | 1986-02-18 | D. C. Research, Inc. | Air foil with trailing spoiler |
USRE34551E (en) * | 1989-01-09 | 1994-02-22 | Vornado Air Circulation Systems, Inc. | Ducted fan |
US6206641B1 (en) * | 1998-06-29 | 2001-03-27 | Samsung Electro-Mechanics Co., Ltd. | Micro fan |
US20050095131A1 (en) * | 2002-09-27 | 2005-05-05 | Delta Electronics, Inc. | Axial flow fan with multiple segment blades |
US6948912B2 (en) * | 2002-11-18 | 2005-09-27 | Delta Electronics, Inc. | Heat dissipation device and its impeller thereof |
US20070036651A1 (en) * | 2005-08-12 | 2007-02-15 | Delta Electronics, Inc. | Fan and blade thereof |
-
2006
- 2006-10-17 US US11/581,453 patent/US20080101933A1/en not_active Abandoned
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2033345A (en) * | 1931-03-04 | 1936-03-10 | Roger K Lee | Fan blade |
US2251887A (en) * | 1938-06-13 | 1941-08-05 | Master Electric Co | Flexible fan unit |
US3075743A (en) * | 1958-10-20 | 1963-01-29 | Gen Dynamics Corp | Turbo-machine with slotted blades |
US3782853A (en) * | 1970-10-09 | 1974-01-01 | Bosch Gmbh Robert | Fan blade assembly |
US3728043A (en) * | 1972-01-12 | 1973-04-17 | Fram Corp | Flexible blade fan with ribbed blades |
US3850545A (en) * | 1972-09-07 | 1974-11-26 | Hayes Albion Corp | Flex fan |
US4105366A (en) * | 1975-05-12 | 1978-08-08 | Wallace Murray Corporation | Twisted flex fan |
US4571156A (en) * | 1984-03-05 | 1986-02-18 | D. C. Research, Inc. | Air foil with trailing spoiler |
USRE34551E (en) * | 1989-01-09 | 1994-02-22 | Vornado Air Circulation Systems, Inc. | Ducted fan |
US6206641B1 (en) * | 1998-06-29 | 2001-03-27 | Samsung Electro-Mechanics Co., Ltd. | Micro fan |
US20050095131A1 (en) * | 2002-09-27 | 2005-05-05 | Delta Electronics, Inc. | Axial flow fan with multiple segment blades |
US7025569B2 (en) * | 2002-09-27 | 2006-04-11 | Delta Electronics, Inc. | Axial flow fan with multiple segment blades |
US6948912B2 (en) * | 2002-11-18 | 2005-09-27 | Delta Electronics, Inc. | Heat dissipation device and its impeller thereof |
US20070036651A1 (en) * | 2005-08-12 | 2007-02-15 | Delta Electronics, Inc. | Fan and blade thereof |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014216266A1 (en) * | 2014-07-23 | 2016-01-28 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Shovel for a wheel |
USD910834S1 (en) * | 2018-12-05 | 2021-02-16 | Asia Vital Components Co., Ltd. | Impeller for a fan |
CN114526252A (en) * | 2022-02-22 | 2022-05-24 | 宁波公牛生活电器有限公司 | Fan blade, fan and invisible fan lamp |
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Owner name: INVENTEC CORPORATION, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CHEN, WIN-HAW;CHANG, CHEN-YUEH;REEL/FRAME:018426/0529 Effective date: 20060804 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |