US20180298911A1 - Shaft structures of fan - Google Patents
Shaft structures of fan Download PDFInfo
- Publication number
- US20180298911A1 US20180298911A1 US15/488,568 US201715488568A US2018298911A1 US 20180298911 A1 US20180298911 A1 US 20180298911A1 US 201715488568 A US201715488568 A US 201715488568A US 2018298911 A1 US2018298911 A1 US 2018298911A1
- Authority
- US
- United States
- Prior art keywords
- shaft
- bearing
- oil
- fan
- shaft structures
- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
-
- 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
- F04D29/06—Lubrication
- F04D29/063—Lubrication specially 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
- 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
- F04D25/062—Details of the bearings
-
- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- 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
- F04D29/329—Details of 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
Definitions
- the present invention generally relates to shaft structures and, more particular to, shaft structures of a fan.
- a conventional shaft structure of a fan usually provides lubricant between the bearing and the shaft.
- the lubricant covers the shaft with a distribution of oil film formed by a driving of the shaft so that the shaft will not contact with the bearing in a radial direction during rotation; thus wear and noise can be avoided, and the life of the bearing can be extended.
- the lubricant flows out the bearing due to gravity; as a result, the surface of the shaft will be not protected by the oil film. Therefore, when the shaft is rotated again, wear between the shaft and the bearing will be increased, and the shaft can be protected again only after the oil film is reformed after the shaft start rotating. This causes a serious wear on the shaft, and the life of the shaft and the bearing will be reduced.
- a conventional shaft structure of a fan is assembled between the shaft and the fan blades, and it is implemented by cutting an annular groove at an end of the shaft radially.
- the annular groove is rolled with knurl; the shaft and the fan blades are coupled by an insert molding process. In this way, plastic material will flow into the annular groove and the knurling for binding.
- the center of the fan blades covers an end of the shaft, and the combination of the shaft and the blades of the fan will be completed.
- an object of the present invention is to provide a shaft structure of a fan, wherein lubricant can be remained on a surface of the bearing for reducing wear between the shaft and the bearing; thus the life of the shaft and the bearing will be improved.
- the present invention provides a shaft and a bearing.
- the shaft is a rod and has an outer surface, a fix end and a free end located opposite to the free end.
- the outer surface of the shaft is formed with a concave annular area and a plurality of first oil grooves, and the first oil grooves are extend helically along the outer surface.
- the fix end has a plurality of toothed portions, and the toothed portions are disposed at interval along the fixed end radially.
- the bearing is a hollow cylinder; the bearing is sleeved on the shaft, and the bearing has an outer surface and an oil-keeping structure located on the outer surface.
- the shaft structure of a fan has a concave annular area and a plurality of first oil grooves, and a plurality of toothed portions provided at the fix end.
- an outer surface of the bearing has an oil-keeping structure. Therefore, when lubricant flows into a space between the shaft and the bearing, parts of the lubricant will be remained in the concave annular area of the shaft, the first oil grooves, and the oil-keeping structure of the bearing. Thus, lubricant can be prevented from flowing out the shaft and the bearing, and the surfaces of the shaft and the bearing will be protected by the oil film. Hence the service life of the shaft and the bearing will be improved.
- FIG. 1 is an application schematic view of the shaft structures of a fan of the present invention.
- FIG. 2 is a perspective schematic view of the shaft of the present invention.
- FIG. 3 is a perspective schematic view of the bearing of the present invention.
- FIG. 4 is an operation schematic view of the shaft structures of a fan of the present invention.
- FIG. 5 is another embodiment of the shaft structures of a fan of the present invention.
- FIG. 1 it depicts an application schematic view of the shaft structures of a fan of the present invention.
- the shaft structures of a fan of the present invention is provided for combining with a fan blade assembly 2 and a housing 3 .
- the shaft structures of a fan 1 include a shaft 10 and a bearing 20 .
- One end of the shaft 10 is embedded in the fan blade assembly 2 .
- the bearing 20 is sleeved on the shaft 10 and is inserted in the housing 3 .
- the fan blade assembly 2 can be rotated through the shaft structures of a fan 1 .
- the fan blade assembly 2 includes a hub 4 and a plurality of blades 5 located at a periphery of the hub 4 .
- the hub 4 has an accommodating space 6 and a slot 7 formed therein.
- FIG. 2 it depicts a perspective schematic view of the shaft of the present invention.
- the shaft 10 is a rod, and it has an outer surface 11 , a fix end 12 and a free end 13 located oppositely.
- the outer surface 11 of the shaft 10 is formed with a concave annular area 110 and a plurality of first oil grooves 111 .
- the first oil grooves 111 are extend helically along the outer surface 11 .
- the fix end 12 has a plurality of toothed portions 121 and is embedded in the fan blade assembly 2 by an insert molding process.
- the toothed portions 121 are disposed at interval along the fixed end 12 radially.
- the shaft 10 is made of ceramic.
- the fix end 12 is embedded in the slot 7 of the hub 4 (refer to FIG. 1 ).
- the fix end 12 has an end face 122 , and the toothed portions 121 are located on the end face 122 .
- the fix end 12 has an annular groove 120 , and the annular groove 120 is located in a side of the toothed portions 121 and cut along the fix end 12 radially.
- the concave annular area 110 is a concave surface and located at a middle of the axis 10 approximately.
- the first oil grooves 111 are located at the concave annular area 110 , and the first oil grooves 111 are extended from a middle of the concave annular area 110 to the fix end 12 and the free end 13 separately.
- FIG. 3 it depicts a perspective schematic view of the bearing.
- the bearing 20 is hollow cylinder.
- the bearing 20 is sleeved on the shaft 10 , and the bearing 20 has an outer surface 21 and an oil-keeping structure 22 located on the outer surface 21 .
- the oil-keeping structure 22 includes a plurality of second oil grooves 221 , and the second oil grooves 221 are extend helically along an outer surface 21 of the bearing 20 .
- the second oil grooves 221 are located at two sides of the bearing 20 and extend helically in opposite directions.
- FIG. 4 it depicts an operation schematic view of the shaft structures of a fan of the present invention.
- the shaft structures of a fan 1 of the present invention are assembled between the fan blade assembly 2 and the housing 3 .
- lubricant 8 filled between the bearing 10 and the bearing 20 of the shaft structures of a fan 1 of the present invention.
- the lubricant 8 provided below the shaft 10 and the bearing 20 will flow upwardly between the shaft 10 and the bearing 20 , and an outer periphery of the bearing 2 for lubricating the shaft structures of a fan 1 .
- FIG. 5 it depicts another embodiment of the shaft structures of a fan of the present invention.
- a bearing 20 a is a hollow cylinder.
- the bearing 20 a has an outer surface 21 a and an oil-keeping structure 22 a located on the outer surface 21 a.
- the present embodiment differs from the previous embodiment in the deposition of the oil-keeping structure 22 a.
- the oil-keeping structure 22 a includes a plurality of second oil grooves 221 and an oil slot 222 a.
- the oil slot 222 a is located on an outer periphery of a middle section of the bearing 20 a.
- the oil slot 222 a is, but not limited to, a semi-circular slot.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A shaft structure having a high service life is disclosed. An outer surface of the shaft is provided with a concave annular area and a plurality of first oil grooves. The first oil grooves extend helically along the outer surface; the fix end has a plurality of toothed portions disposed at interval and along the fixed end radially. A bearing is sleeved on the shaft and has an oil-keeping structure located on the outer surface. Thereby, lubricant can be remained on the surface of the shaft for reducing wear between the shaft and the bearing.
Description
- The present invention generally relates to shaft structures and, more particular to, shaft structures of a fan.
- A conventional shaft structure of a fan usually provides lubricant between the bearing and the shaft. The lubricant covers the shaft with a distribution of oil film formed by a driving of the shaft so that the shaft will not contact with the bearing in a radial direction during rotation; thus wear and noise can be avoided, and the life of the bearing can be extended. However, when the shaft is stopped from rotating, the lubricant flows out the bearing due to gravity; as a result, the surface of the shaft will be not protected by the oil film. Therefore, when the shaft is rotated again, wear between the shaft and the bearing will be increased, and the shaft can be protected again only after the oil film is reformed after the shaft start rotating. This causes a serious wear on the shaft, and the life of the shaft and the bearing will be reduced.
- Moreover, a conventional shaft structure of a fan is assembled between the shaft and the fan blades, and it is implemented by cutting an annular groove at an end of the shaft radially. The annular groove is rolled with knurl; the shaft and the fan blades are coupled by an insert molding process. In this way, plastic material will flow into the annular groove and the knurling for binding. Besides, the center of the fan blades covers an end of the shaft, and the combination of the shaft and the blades of the fan will be completed.
- However, the binding structure of the shaft and the blades is only applicable to a metal shaft of the fan. As for a shaft made of ceramic, the above processing is difficult to be applied. Additionally, because the depth of twill configured by the knurl is shallow, the binding force is low and will be easy to fall off. Thus the life of the fan is reduced.
- Accordingly, an object of the present invention is to provide a shaft structure of a fan, wherein lubricant can be remained on a surface of the bearing for reducing wear between the shaft and the bearing; thus the life of the shaft and the bearing will be improved. In order to achieve the object mentioned above, the present invention provides a shaft and a bearing. The shaft is a rod and has an outer surface, a fix end and a free end located opposite to the free end. The outer surface of the shaft is formed with a concave annular area and a plurality of first oil grooves, and the first oil grooves are extend helically along the outer surface. The fix end has a plurality of toothed portions, and the toothed portions are disposed at interval along the fixed end radially. The bearing is a hollow cylinder; the bearing is sleeved on the shaft, and the bearing has an outer surface and an oil-keeping structure located on the outer surface.
- Comparing to the prior art, the shaft structure of a fan has a concave annular area and a plurality of first oil grooves, and a plurality of toothed portions provided at the fix end. Besides, an outer surface of the bearing has an oil-keeping structure. Therefore, when lubricant flows into a space between the shaft and the bearing, parts of the lubricant will be remained in the concave annular area of the shaft, the first oil grooves, and the oil-keeping structure of the bearing. Thus, lubricant can be prevented from flowing out the shaft and the bearing, and the surfaces of the shaft and the bearing will be protected by the oil film. Hence the service life of the shaft and the bearing will be improved.
- The features of the invention believed to be novel are set forth with particularity in the appended claims. The invention itself, however, may be best understood by reference to the following detailed description of the invention, which describes a number of exemplary embodiments of the invention, taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is an application schematic view of the shaft structures of a fan of the present invention. -
FIG. 2 is a perspective schematic view of the shaft of the present invention. -
FIG. 3 is a perspective schematic view of the bearing of the present invention. -
FIG. 4 is an operation schematic view of the shaft structures of a fan of the present invention. -
FIG. 5 is another embodiment of the shaft structures of a fan of the present invention. - In cooperation with attached drawings, the technical contents and detailed description of the invention are described thereinafter according to a number of preferable embodiments, being not used to limit its executing scope. Any equivalent variation and modification made according to appended claims is all covered by the claims claimed by the present invention.
- Please refer to
FIG. 1 , it depicts an application schematic view of the shaft structures of a fan of the present invention. As shown inFIG. 1 , the shaft structures of a fan of the present invention is provided for combining with afan blade assembly 2 and ahousing 3. The shaft structures of afan 1 include ashaft 10 and a bearing 20. One end of theshaft 10 is embedded in thefan blade assembly 2. Moreover, thebearing 20 is sleeved on theshaft 10 and is inserted in thehousing 3. Thus, thefan blade assembly 2 can be rotated through the shaft structures of afan 1. - In the present embodiment, the
fan blade assembly 2 includes ahub 4 and a plurality ofblades 5 located at a periphery of thehub 4. Thehub 4 has anaccommodating space 6 and aslot 7 formed therein. - Please further refer to
FIG. 2 , it depicts a perspective schematic view of the shaft of the present invention. Theshaft 10 is a rod, and it has anouter surface 11, afix end 12 and afree end 13 located oppositely. Theouter surface 11 of theshaft 10 is formed with a concaveannular area 110 and a plurality offirst oil grooves 111. Thefirst oil grooves 111 are extend helically along theouter surface 11. In addition, thefix end 12 has a plurality oftoothed portions 121 and is embedded in thefan blade assembly 2 by an insert molding process. Thetoothed portions 121 are disposed at interval along the fixedend 12 radially. Preferably, theshaft 10 is made of ceramic. - In more detail, the
fix end 12 is embedded in theslot 7 of the hub 4 (refer toFIG. 1 ). Besides, thefix end 12 has anend face 122, and thetoothed portions 121 are located on theend face 122. Preferably, thefix end 12 has anannular groove 120, and theannular groove 120 is located in a side of thetoothed portions 121 and cut along thefix end 12 radially. Moreover, the concaveannular area 110 is a concave surface and located at a middle of theaxis 10 approximately. Furthermore, thefirst oil grooves 111 are located at the concaveannular area 110, and thefirst oil grooves 111 are extended from a middle of the concaveannular area 110 to thefix end 12 and thefree end 13 separately. - With referring to
FIG. 3 , it depicts a perspective schematic view of the bearing. Thebearing 20 is hollow cylinder. Thebearing 20 is sleeved on theshaft 10, and thebearing 20 has anouter surface 21 and an oil-keeping structure 22 located on theouter surface 21. - More specifically, the oil-
keeping structure 22 includes a plurality ofsecond oil grooves 221, and thesecond oil grooves 221 are extend helically along anouter surface 21 of thebearing 20. Preferably, thesecond oil grooves 221 are located at two sides of thebearing 20 and extend helically in opposite directions. - Please refer to
FIG. 4 , it depicts an operation schematic view of the shaft structures of a fan of the present invention. The shaft structures of afan 1 of the present invention are assembled between thefan blade assembly 2 and thehousing 3. Moreover, there islubricant 8 filled between the bearing 10 and the bearing 20 of the shaft structures of afan 1 of the present invention. When theshaft 10 is driven and rotated, thelubricant 8 provided below theshaft 10 and thebearing 20 will flow upwardly between theshaft 10 and thebearing 20, and an outer periphery of thebearing 2 for lubricating the shaft structures of afan 1. - As shown in the figure, when the
lubricant 8 flows into theshaft 10 and thebearing 20 therebetween, parts of thelubricant 8 will be remained in the concaveannular area 110 of theshaft 10 and thefirst oil grooves 111. Moreover, when thelubricant 8 flows upwardly along the outer periphery of thebearing 20, parts of thelubricant 8 will be remained in the oil-keeping structure 22 (second oil grooves 221). Therefore, thelubricant 8 can be prevented from flowing out of theshaft 10; therefore, theshaft 10 and the surface of thebearing 20 can be protected by the oil film. - Please refer to
FIG. 5 , it depicts another embodiment of the shaft structures of a fan of the present invention. In the present embodiment, a bearing 20 a is a hollow cylinder. The bearing 20 a has anouter surface 21 a and an oil-keepingstructure 22 a located on theouter surface 21 a. The present embodiment differs from the previous embodiment in the deposition of the oil-keepingstructure 22 a. - In the present embodiment, the oil-keeping
structure 22 a includes a plurality ofsecond oil grooves 221 and anoil slot 222 a. Preferably, theoil slot 222 a is located on an outer periphery of a middle section of the bearing 20 a. Besides, theoil slot 222 a is, but not limited to, a semi-circular slot. - Although the present invention has been described with reference to the preferred embodiment thereof, it will be understood that the invention is not limited to the details thereof. Various substitutions and improvements have been suggested in the foregoing description, and others will occur to those of ordinary skill in the art. Therefore, all such substitutions and improvements are intended to be embraced within the scope of the invention as defined in the appended claims.
Claims (10)
1. Shaft structures of a fan for combining with a fan blade assembly, including:
a shaft being a rod and having an outer surface, a fix end and a free end located opposite to the free end; the outer surface of the shaft being formed with a concave annular area and a plurality of first oil grooves, and the first oil grooves extend helically along the outer surface; the fix end embedded in the fan blade assembly and having a plurality of toothed portions, and the toothed portions disposed at interval along the fixed end radially; and
a bearing being a hollow cylinder, the bearing sleeved on the shaft, and the bearing having an outer surface and an oil-keeping structure located on the outer surface.
2. The shaft structures of a fan according to claim 1 , wherein the fan blade assembly includes a hub and a plurality of blades located at a periphery of the hub; the hub has an accommodating space and a slot, and the fix end is embedded in the slot.
3. The shaft structures of a fan according to claim 1 , wherein the fix end has an annular groove, and the annular groove is located at a side of the toothed portions and cut along the fix end radially.
4. The shaft structures of a fan according to claim 1 , wherein the first oil grooves are located at the concave annular area.
5. The shaft structures of a fan according to claim 1 , wherein the first oil grooves are extended from a middle of the concave annular area to the fix end and the free end.
6. The shaft structures of a fan according to claim 1 , wherein the fix end has an end face, and the toothed portions are provided on the end face.
7. The shaft structures of a fan according to claim 1 , wherein the oil-keeping structure includes a plurality of second oil grooves, and the second oil grooves are extend helically along an outer surface of the bearing.
8. The shaft structures of a fan according to claim 7 , wherein the second oil grooves are located at two sides of the bearing and extend helically in opposite directions.
9. The shaft structures of a fan according to claim 7 , wherein the oil-keeping structure further includes an oil slot, and the oil slot is located on an outer periphery of a middle section of the bearing.
10. The shaft structures of a fan according to claim 9 , wherein the oil slot is a semi-circular slot.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/488,568 US20180298911A1 (en) | 2017-04-17 | 2017-04-17 | Shaft structures of fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/488,568 US20180298911A1 (en) | 2017-04-17 | 2017-04-17 | Shaft structures of fan |
Publications (1)
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US20180298911A1 true US20180298911A1 (en) | 2018-10-18 |
Family
ID=63791647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US15/488,568 Abandoned US20180298911A1 (en) | 2017-04-17 | 2017-04-17 | Shaft structures of fan |
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US (1) | US20180298911A1 (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050025643A1 (en) * | 2003-07-29 | 2005-02-03 | Nien-Lun Li | Oil-retaining structure for fan |
US20050147336A1 (en) * | 2003-01-10 | 2005-07-07 | Sony Corp. | Bearing unit and rotary drive apparatus including the bearing unit |
US20060171826A1 (en) * | 2005-01-28 | 2006-08-03 | Foxconn Technology Co., Ltd. | Electric fan with oil-retaining structure |
US20090155080A1 (en) * | 2007-12-12 | 2009-06-18 | Taiwei Fan Technology Co., Ltd. | Combination axial-flow fan |
US20130164128A1 (en) * | 2011-12-02 | 2013-06-27 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Charging device |
US20160115992A1 (en) * | 2014-10-23 | 2016-04-28 | Borgwarner Inc. | Flexure pivot tilting pad journal bearing assembly |
US20160230769A1 (en) * | 2013-09-24 | 2016-08-11 | Shinji Komatsubara | Sintered metal bearing, fluid-dynamic bearing device provided with said bearing, and fan motor provided with said bearing device |
US20160258485A1 (en) * | 2015-03-06 | 2016-09-08 | Minebea Co., Ltd. | Bearing structure and air blower |
US20170108035A1 (en) * | 2014-04-30 | 2017-04-20 | Borgwarner Inc. | Reversible spiral groove journal bearing for use on standard and reverse rotation turbochargers |
-
2017
- 2017-04-17 US US15/488,568 patent/US20180298911A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050147336A1 (en) * | 2003-01-10 | 2005-07-07 | Sony Corp. | Bearing unit and rotary drive apparatus including the bearing unit |
US20050025643A1 (en) * | 2003-07-29 | 2005-02-03 | Nien-Lun Li | Oil-retaining structure for fan |
US20060171826A1 (en) * | 2005-01-28 | 2006-08-03 | Foxconn Technology Co., Ltd. | Electric fan with oil-retaining structure |
US20090155080A1 (en) * | 2007-12-12 | 2009-06-18 | Taiwei Fan Technology Co., Ltd. | Combination axial-flow fan |
US20130164128A1 (en) * | 2011-12-02 | 2013-06-27 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Charging device |
US20160230769A1 (en) * | 2013-09-24 | 2016-08-11 | Shinji Komatsubara | Sintered metal bearing, fluid-dynamic bearing device provided with said bearing, and fan motor provided with said bearing device |
US20170108035A1 (en) * | 2014-04-30 | 2017-04-20 | Borgwarner Inc. | Reversible spiral groove journal bearing for use on standard and reverse rotation turbochargers |
US20160115992A1 (en) * | 2014-10-23 | 2016-04-28 | Borgwarner Inc. | Flexure pivot tilting pad journal bearing assembly |
US20160258485A1 (en) * | 2015-03-06 | 2016-09-08 | Minebea Co., Ltd. | Bearing structure and air blower |
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