US20120093650A1 - Fan wheel for a blower module - Google Patents
Fan wheel for a blower module Download PDFInfo
- Publication number
- US20120093650A1 US20120093650A1 US13/264,791 US201013264791A US2012093650A1 US 20120093650 A1 US20120093650 A1 US 20120093650A1 US 201013264791 A US201013264791 A US 201013264791A US 2012093650 A1 US2012093650 A1 US 2012093650A1
- Authority
- US
- United States
- Prior art keywords
- fan
- fan wheel
- fan blades
- grooves
- balancing
- 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
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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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal 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
- F04D29/66—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
- F04D29/662—Balancing of rotors
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for 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
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
Definitions
- the present invention proceeds from a fan wheel for a blower module.
- blower modules are known from a wide variety of different industrial applications, for example they are used for ventilating various technical appliances or for channeling the air stream when used in air-conditioning systems of motor vehicles.
- the fans of the blower modules are balanced following installation.
- balancing weights e.g. in the form of (balancing) clips
- the balancing weights are fixed in the selected position by resilience and frictional fitting.
- the balancing weights are usually fastened exclusively on the (axial) inside of the fan blades, this side being directed toward the fan center point, and they are secured here by form fitting against the radially acting centrifugal forces.
- the disadvantage here is that the fan has to be configured such that an edge, on which the balancing weights can be fastened, is provided on the inside of the fan blades. Furthermore, this fastening edge also has to be freely accessible once the fan has been installed on the motor. In many cases, these requirements are not met.
- a further disadvantage is that, in the case of such fastening, with balancing of moments and/or dynamic balancing, the quality of balancing is dependent on whether the measuring plane and the balancing plane are positioned correctly in relation to one another. The operator or installer, however, can install the balancing weights axially at any desired height or in any desired plane, as a result of which the balancing quality realized is dependent on the skill of the installer.
- the balancing weights are at the end of the radially oriented fan blades.
- the balancing weight or weights is/are thus positioned at the maximum fan diameter, and therefore the balancing weight is relatively distant from the axis of rotation, or center axis, of the fan wheel. It is thus possible to select a lower weight for the balancing elements.
- This positioning also makes it possible for the region in which the balancing weights have to be fitted for balancing purposes still to be very easily accessible even once the fan has been installed. Handling for the operator is more straightforward and the risk of the balancing weight accidentally passing into the blower module during installation, and causing malfunctioning as a result, is lower.
- the balancing weights are advantageously designed as (balancing) clips and are fastened in a form-fitting and/or force-fitting manner at the ends of the fan blades.
- the (balancing) clips here usually consist of steel. However, it is basically also possible to use, for this balancing method, other resilient materials, which should have the highest density possible in order that the volume can be kept appropriately small.
- the (balancing) clips differ in size, in order for it to be possible to provide the operator with a selection of different balancing masses. It is also possible to use different shapes. On the one hand, the (balancing) clip is adapted to the shape of the fan blade and, on the other hand, the attempt is made, by configuring the (balancing) clips in a suitable manner, to improve the form fitting or frictional fitting.
- the inside and outside of the radially oriented fan blades contain grooves, in which the (balancing) clips engage in a form-fitting manner by way of their clamping edges.
- these grooves it is advantageously the case that the (balancing) clips are secured against being slung off axially not only by frictional fitting, but also by corresponding form fitting.
- the grooves ensure always the same axial positioning of the (balancing) clips, which helps to achieve a uniform quality for the balancing of moments, since the balancing plane is clearly defined.
- the radially oriented fan blades form a fan ring, which is made up alternately of short and long fan blades, wherein the (balancing) clips and the grooves for the (balancing) clips are provided at the radial end of the fan blades.
- the balancing clips are arranged preferably on the long fan blades, since these are designed to be stiffer than the short fan blades and are thus less likely to vibrate.
- the fan wheel is produced preferably by injection molding, wherein the grooves can advantageously be demolded from the mold without any additional outlay.
- the fan wheel is a constituent part of a blower module, which is connected to a drive unit comprising an electric motor.
- the fan wheel here is connected in a rotationally fixed manner to the drive shaft of the electric motor.
- FIG. 1 shows a first perspective view of a blower module
- FIG. 2 shows a second view (of part) of the blower module
- FIG. 3 shows a first perspective view of a fan wheel
- FIG. 4 shows a second perspective view of the fan wheel
- FIG. 5 shows an enlarged detail of the fan wheel with a balancing element fastened on a fan blade
- FIG. 6 shows an enlarged illustration of the balancing weight fastened on a fan blade.
- the blower module 2 illustrated in FIG. 1 comprises a basic housing 4 , on which a fan wheel 6 is mounted such that it can be rotated on a drive shaft 7 .
- the fan wheel 6 is fastened on the drive shaft 7 by way of its hub 5 .
- the (radial) fan wheel 6 has, on its outer end side, an axial fan ring 8 , which is made up of curved fan blades 9 .
- the (radial) fan wheel 6 also has a radial fan ring 10 , which is likewise made up of curved fan blades, referred to hereinbelow as radial fan blades 12 .
- the radial fan ring 10 has two different types of fan blade 12 .
- a first group comprises long fan blades which extend as far as the hub 5 , and will be referred to hereinbelow as long fan blades 14
- a second group comprises short fan blades 16 which, as seen from the external diameter of the radial fan ring 10 , extend only some way in the direction of the axis of rotation.
- the two groups of fan blades 14 , 16 are formed alternately on the (radial) fan wheel 6 .
- the functioning of such a radial blower is known and will therefore not be explained in any more detail.
- the essential factor is that the air is taken in via the axial fan ring 8 , deflected through 90°, compressed and then blown out via the radial fan ring 10 .
- a clip element which serves as a balancing weight and will be referred to hereinbelow as a balancing clip 18 , is plugged and fastened if required, following installation of the blower module 2 , on an outer radial end of a long fan blade 14 .
- the inside and outside of the long fan blades 14 contain grooves 20 and 22 , which run parallel to the axis of rotation of the fan wheel 6 and in which—as can be seen, for example, from FIG. 6 —the clamping edges of the balancing clip 18 can engage in a form-fitting manner. This ensures that, despite high blower speeds, the balancing clip 18 is fastened securely on the fan blade 14 .
- the length of grooves 20 , 22 here corresponds substantially with the width of the balancing clips 18 , and therefore the balancing clips 18 are prevented from slipping laterally.
- Balancing takes place as follows.
- the blower module 2 is mounted, in the ready-installed state, in a measuring apparatus.
- the rotor i.e. the armature of the motor and the fan wheel 6 , is set in rotation by virtue of the motor being switched on.
- Suitable measuring sensors pick up the dynamic forces in the predetermined measuring planes and the respective imbalance is displayed to the operator in terms of magnitude and angle.
- the measuring apparatus uses this to calculate the necessary balancing mass and the balancing angle, and indicates this correspondingly to the operator.
- the operator uses the display information (and his experience) to fit the balancing clips 18 on the corresponding fan blade 14 , and then starts a monitoring-measurement operation.
- the blower module 2 here is balanced in two planes which are positioned as far apart from one another as possible. It is only this which ensures that both the static equilibrium and the balancing of moments are improved, wherein the second plane in this fan is located in the region which is designated 9 in FIG. 1 .
- the number of balancing clips 18 which are necessary depends on the magnitude and angular position of the imbalance measured. Balancing is ideally achieved with a maximum of two balancing clips, i.e. one balancing clip for each plane. In practice, it is quite possible for two or three balancing clips to be placed in different positions along each plane, in order for an adequate result to be achieved.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a fan wheel (6) for a blower module (2), comprising a hub (5) and a radial fan ring (8) composed of a plurality of fan blades (12) and further comprising means for resolving imbalances in the fan wheel (6). According to the invention, balancing weights (18) can be fastened to the radial ends of the fan blades (12).
Description
- The present invention proceeds from a fan wheel for a blower module.
- Such blower modules are known from a wide variety of different industrial applications, for example they are used for ventilating various technical appliances or for channeling the air stream when used in air-conditioning systems of motor vehicles.
- In many applications, for example when used in air-conditioning systems of motor vehicles, the fans of the blower modules are balanced following installation. Usually, added or positive balancing is carried out here with balancing weights, e.g. in the form of (balancing) clips, being fitted on the fan wheel. The balancing weights here are fixed in the selected position by resilience and frictional fitting. The balancing weights are usually fastened exclusively on the (axial) inside of the fan blades, this side being directed toward the fan center point, and they are secured here by form fitting against the radially acting centrifugal forces.
- The disadvantage here, inter alia, is that the fan has to be configured such that an edge, on which the balancing weights can be fastened, is provided on the inside of the fan blades. Furthermore, this fastening edge also has to be freely accessible once the fan has been installed on the motor. In many cases, these requirements are not met. A further disadvantage is that, in the case of such fastening, with balancing of moments and/or dynamic balancing, the quality of balancing is dependent on whether the measuring plane and the balancing plane are positioned correctly in relation to one another. The operator or installer, however, can install the balancing weights axially at any desired height or in any desired plane, as a result of which the balancing quality realized is dependent on the skill of the installer.
- It is an object of the invention to design a fan wheel and/or the balancing weights so as to ensure permanent and externally easily accessible fastening of the balancing weights and, at the same time, good balancing quality.
- According to the invention, it is proposed to arrange the balancing weights at the end of the radially oriented fan blades. The balancing weight or weights is/are thus positioned at the maximum fan diameter, and therefore the balancing weight is relatively distant from the axis of rotation, or center axis, of the fan wheel. It is thus possible to select a lower weight for the balancing elements. This positioning also makes it possible for the region in which the balancing weights have to be fitted for balancing purposes still to be very easily accessible even once the fan has been installed. Handling for the operator is more straightforward and the risk of the balancing weight accidentally passing into the blower module during installation, and causing malfunctioning as a result, is lower.
- The balancing weights are advantageously designed as (balancing) clips and are fastened in a form-fitting and/or force-fitting manner at the ends of the fan blades. The (balancing) clips here usually consist of steel. However, it is basically also possible to use, for this balancing method, other resilient materials, which should have the highest density possible in order that the volume can be kept appropriately small.
- The (balancing) clips differ in size, in order for it to be possible to provide the operator with a selection of different balancing masses. It is also possible to use different shapes. On the one hand, the (balancing) clip is adapted to the shape of the fan blade and, on the other hand, the attempt is made, by configuring the (balancing) clips in a suitable manner, to improve the form fitting or frictional fitting.
- The inside and outside of the radially oriented fan blades contain grooves, in which the (balancing) clips engage in a form-fitting manner by way of their clamping edges. As a result of these grooves, it is advantageously the case that the (balancing) clips are secured against being slung off axially not only by frictional fitting, but also by corresponding form fitting. Furthermore, the grooves ensure always the same axial positioning of the (balancing) clips, which helps to achieve a uniform quality for the balancing of moments, since the balancing plane is clearly defined.
- The radially oriented fan blades form a fan ring, which is made up alternately of short and long fan blades, wherein the (balancing) clips and the grooves for the (balancing) clips are provided at the radial end of the fan blades. The balancing clips are arranged preferably on the long fan blades, since these are designed to be stiffer than the short fan blades and are thus less likely to vibrate.
- The fan wheel is produced preferably by injection molding, wherein the grooves can advantageously be demolded from the mold without any additional outlay.
- The fan wheel is a constituent part of a blower module, which is connected to a drive unit comprising an electric motor. The fan wheel here is connected in a rotationally fixed manner to the drive shaft of the electric motor.
- An exemplary embodiment of the invention will be explained in more detail in the following description and in the drawing, in which:
-
FIG. 1 shows a first perspective view of a blower module, -
FIG. 2 shows a second view (of part) of the blower module, -
FIG. 3 shows a first perspective view of a fan wheel, -
FIG. 4 shows a second perspective view of the fan wheel, -
FIG. 5 shows an enlarged detail of the fan wheel with a balancing element fastened on a fan blade, and -
FIG. 6 shows an enlarged illustration of the balancing weight fastened on a fan blade. - The
blower module 2 illustrated inFIG. 1 comprises a basic housing 4, on which afan wheel 6 is mounted such that it can be rotated on a drive shaft 7. Thefan wheel 6, in turn, is fastened on the drive shaft 7 by way of itshub 5. The (radial)fan wheel 6 has, on its outer end side, anaxial fan ring 8, which is made up ofcurved fan blades 9. The (radial)fan wheel 6 also has aradial fan ring 10, which is likewise made up of curved fan blades, referred to hereinbelow asradial fan blades 12. As can be seen fromFIG. 4 , theradial fan ring 10 has two different types offan blade 12. A first group comprises long fan blades which extend as far as thehub 5, and will be referred to hereinbelow aslong fan blades 14, whereas a second group comprisesshort fan blades 16 which, as seen from the external diameter of theradial fan ring 10, extend only some way in the direction of the axis of rotation. The two groups offan blades fan wheel 6. The functioning of such a radial blower is known and will therefore not be explained in any more detail. The essential factor is that the air is taken in via theaxial fan ring 8, deflected through 90°, compressed and then blown out via theradial fan ring 10. - For the purpose of balancing dynamic imbalances in the (radial)
fan wheel 6, a clip element, which serves as a balancing weight and will be referred to hereinbelow as abalancing clip 18, is plugged and fastened if required, following installation of theblower module 2, on an outer radial end of along fan blade 14. - In order to ensure permanent fastening, the inside and outside of the
long fan blades 14 containgrooves fan wheel 6 and in which—as can be seen, for example, from FIG. 6—the clamping edges of the balancingclip 18 can engage in a form-fitting manner. This ensures that, despite high blower speeds, the balancingclip 18 is fastened securely on thefan blade 14. The length ofgrooves balancing clips 18, and therefore thebalancing clips 18 are prevented from slipping laterally. - Balancing takes place as follows. The
blower module 2 is mounted, in the ready-installed state, in a measuring apparatus. The rotor, i.e. the armature of the motor and thefan wheel 6, is set in rotation by virtue of the motor being switched on. Suitable measuring sensors pick up the dynamic forces in the predetermined measuring planes and the respective imbalance is displayed to the operator in terms of magnitude and angle. The measuring apparatus uses this to calculate the necessary balancing mass and the balancing angle, and indicates this correspondingly to the operator. The operator uses the display information (and his experience) to fit thebalancing clips 18 on thecorresponding fan blade 14, and then starts a monitoring-measurement operation. Theblower module 2 here is balanced in two planes which are positioned as far apart from one another as possible. It is only this which ensures that both the static equilibrium and the balancing of moments are improved, wherein the second plane in this fan is located in the region which is designated 9 inFIG. 1 . - The number of
balancing clips 18 which are necessary depends on the magnitude and angular position of the imbalance measured. Balancing is ideally achieved with a maximum of two balancing clips, i.e. one balancing clip for each plane. In practice, it is quite possible for two or three balancing clips to be placed in different positions along each plane, in order for an adequate result to be achieved. - However, a maximum of just one
balancing clip 18 should be fastened on eachfan blade 14. Therefore—as is illustrated in FIG. 6—the length of thegroove clip 18. - The abovedescribed practice of fastening the balancing weights is not restricted either to the number or to the shape of the fan blades. It is thus the case that the practice according to the invention of fastening the balancing weights can also be used for other types of fan wheel, for example for those which have just one group of fan blades.
Claims (20)
1. A fan wheel (6) for a blower module (2), having a hub (5) and having a radial fan ring (10), which is made up of a multiplicity of fan blades (12), and having means for eliminating imbalances in the fan wheel (6), characterized in that balancing weights (18) are arranged at radial ends of the fan blades (12).
2. The fan wheel as claimed in claim 1 , characterized in that the balancing weights are clip elements (18) plugged in a force-fitting manner onto the ends of the fan blades (12).
3. The fan wheel as claimed in claim 2 , characterized in that an inside and an outside of the fan blades (12) contain grooves (20, 22), in which the clip elements (18) engage in a form-fitting manner by way of clamping edges.
4. The fan wheel as claimed in claim 3 , characterized in that the radial fan ring (10) comprises short and long fan blades (14, 16), wherein the grooves (20, 22) are formed at the end of the long fan blades (14).
5. The fan wheel as claimed in claim 3 , characterized in that the fan wheel (6) is produced by injection molding, wherein the grooves (20, 22) are demolded from the mold without any additional outlay.
6. A blower module with a drive unit comprising an electric motor, on a drive shaft of which a fan wheel (6) according to claim 1 is arranged in a rotationally fixed manner.
7. The fan wheel as claimed in claim 1 , characterized in that the balancing weights are designed as clip elements (18) which can be plugged in a form-fitting manner onto the ends of the fan blades (12).
8. The fan wheel as claimed in claim 7 , characterized in that the balancing weights are designed as clip elements (18) which can be plugged in a force-fitting manner onto the ends of the fan blades (12).
9. The fan wheel as claimed in claim 7 , characterized in that an inside and an outside of the fan blades (12) contain grooves (20, 22), in which the clip elements (18) engage in a form-fitting manner by way of clamping edges.
10. The fan wheel as claimed in claim 8 , characterized in that an inside and an outside of the fan blades (12) contain grooves (20, 22), in which the clip elements (18) engage in a form-fitting manner by way of clamping edges.
11. The fan wheel as claimed in claim 9 , characterized in that the radial fan ring (10) comprises short and long fan blades (14, 16), wherein the grooves (20, 22) are formed at the end of the long fan blades (14).
12. The fan wheel as claimed in claim 10 , characterized in that the radial fan ring (10) comprises short and long fan blades (14, 16), wherein the grooves (20, 22) are formed at the end of the long fan blades (14).
13. The fan wheel as claimed in claim 4 , characterized in that the fan wheel (6) is produced by injection molding, wherein the grooves (20, 22) are demolded from the mold without any additional outlay.
14. The fan wheel as claimed in claim 11 , characterized in that the fan wheel (6) is produced by injection molding, wherein the grooves (20, 22) are demolded from the mold without any additional outlay.
15. The fan wheel as claimed in claim 12 , characterized in that the fan wheel (6) is produced by injection molding, wherein the grooves (20, 22) are demolded from the mold without any additional outlay.
16. A blower module as claimed in claim 6 , characterized in that the balancing weights are clip elements (18) plugged in a force-fitting manner onto the ends of the fan blades (12).
17. A blower module as claimed in claim 16 , characterized in that an inside and an outside of the fan blades (12) contain grooves (20, 22), in which the clip elements (18) engage in a form-fitting manner by way of clamping edges.
18. A blower module as claimed in claim 17 , characterized in that the radial fan ring (10) comprises short and long fan blades (14, 16), wherein the grooves (20, 22) are formed at the end of the long fan blades (14).
19. A blower module as claimed in claim 17 , characterized in that the fan wheel (6) is produced by injection molding, wherein the grooves (20, 22) are demolded from the mold without any additional outlay.
20. A blower module as claimed in claim 6 , characterized in that the balancing weights are designed as clip elements (18) which can be plugged in a form-fitting manner onto the ends of the fan blades (12).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009002418.2 | 2009-04-16 | ||
DE102009002418A DE102009002418A1 (en) | 2009-04-16 | 2009-04-16 | Fan wheel for a fan module |
PCT/EP2010/053926 WO2010118942A1 (en) | 2009-04-16 | 2010-03-25 | Fan wheel for a blower module |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120093650A1 true US20120093650A1 (en) | 2012-04-19 |
Family
ID=42224800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/264,791 Abandoned US20120093650A1 (en) | 2009-04-16 | 2010-03-25 | Fan wheel for a blower module |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120093650A1 (en) |
EP (1) | EP2419645A1 (en) |
KR (1) | KR20120012794A (en) |
CN (1) | CN102395796A (en) |
DE (1) | DE102009002418A1 (en) |
WO (1) | WO2010118942A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103728111A (en) * | 2013-12-13 | 2014-04-16 | 中国燃气涡轮研究院 | Balancing weight connection structure capable of reducing blade high-cycle fatigue test article frequency |
US20140356168A1 (en) * | 2013-03-15 | 2014-12-04 | Regal Beloit America, Inc. | Centrifugal fan impeller with variable shape fan blades and method of assembly |
WO2016157471A1 (en) * | 2015-04-01 | 2016-10-06 | 三菱電機株式会社 | Blower and air conditioner |
US9970309B2 (en) | 2014-08-05 | 2018-05-15 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Method for producing a rotor of a charging apparatus |
US11041502B2 (en) | 2018-01-30 | 2021-06-22 | Carrier Corporation | Double inlet backward curved blower |
US11242864B2 (en) | 2016-10-18 | 2022-02-08 | Carrier Corporation | Asymmetric double inlet backward curved blower |
US20220381508A1 (en) * | 2021-05-28 | 2022-12-01 | Grad Aps | Apparatus for beverage container temperature control |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023200065A1 (en) | 2023-01-04 | 2024-07-04 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Fan wheel and fan device with such a fan wheel |
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US4025231A (en) * | 1975-11-26 | 1977-05-24 | Revcor, Inc. | Propeller fan construction |
US5800127A (en) * | 1995-12-28 | 1998-09-01 | Industrie Magneti Marelli S.P.A. | Method of balancing fan rotors, particularly electric fans for use in motor vehicles |
US7305905B2 (en) * | 2004-01-09 | 2007-12-11 | The Bergquist Torrington Company | Rotatable member with an annular groove for dynamic balancing during rotation |
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US3315750A (en) * | 1966-04-18 | 1967-04-25 | Vincent N Delaney | Fan balancing means |
JP3111738B2 (en) * | 1993-04-02 | 2000-11-27 | 松下電器産業株式会社 | Blower impeller and its balance weight |
DE29615144U1 (en) * | 1996-08-30 | 1998-01-02 | Robert Bosch Gmbh, 70469 Stuttgart | Radial fan |
CN1074098C (en) * | 1997-08-18 | 2001-10-31 | 台达电子工业股份有限公司 | Fluid-guiding means for air-blower |
DE19957030A1 (en) * | 1999-11-26 | 2001-05-31 | Bosch Gmbh Robert | Weighting clip for balancing rotation of rotary body e.g. fan wheel, has pointed tongues at ends of its arms for penetrating surface of rotary body |
FI20011135A0 (en) * | 2001-05-31 | 2001-05-31 | Flaekt Oy | Fan impeller balancing |
ES2297657T3 (en) * | 2005-05-04 | 2008-05-01 | Denso Thermal Systems S.P.A. | EQUIPMENT FOR AUTOMATICALLY BALANCING VEHICLE VENTILATION UNITS. |
-
2009
- 2009-04-16 DE DE102009002418A patent/DE102009002418A1/en not_active Withdrawn
-
2010
- 2010-03-25 KR KR1020117024161A patent/KR20120012794A/en not_active Application Discontinuation
- 2010-03-25 CN CN2010800167283A patent/CN102395796A/en active Pending
- 2010-03-25 WO PCT/EP2010/053926 patent/WO2010118942A1/en active Application Filing
- 2010-03-25 US US13/264,791 patent/US20120093650A1/en not_active Abandoned
- 2010-03-25 EP EP10712398A patent/EP2419645A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025231A (en) * | 1975-11-26 | 1977-05-24 | Revcor, Inc. | Propeller fan construction |
US5800127A (en) * | 1995-12-28 | 1998-09-01 | Industrie Magneti Marelli S.P.A. | Method of balancing fan rotors, particularly electric fans for use in motor vehicles |
US7305905B2 (en) * | 2004-01-09 | 2007-12-11 | The Bergquist Torrington Company | Rotatable member with an annular groove for dynamic balancing during rotation |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140356168A1 (en) * | 2013-03-15 | 2014-12-04 | Regal Beloit America, Inc. | Centrifugal fan impeller with variable shape fan blades and method of assembly |
US9689264B2 (en) * | 2013-03-15 | 2017-06-27 | Regal Beloit America, Inc. | Centrifugal fan impeller with variable shape fan blades and method of assembly |
CN103728111A (en) * | 2013-12-13 | 2014-04-16 | 中国燃气涡轮研究院 | Balancing weight connection structure capable of reducing blade high-cycle fatigue test article frequency |
US9970309B2 (en) | 2014-08-05 | 2018-05-15 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Method for producing a rotor of a charging apparatus |
WO2016157471A1 (en) * | 2015-04-01 | 2016-10-06 | 三菱電機株式会社 | Blower and air conditioner |
CN106050734A (en) * | 2015-04-01 | 2016-10-26 | 三菱电机株式会社 | Blower and air conditioner |
JPWO2016157471A1 (en) * | 2015-04-01 | 2017-11-16 | 三菱電機株式会社 | Blower and air conditioner |
US11242864B2 (en) | 2016-10-18 | 2022-02-08 | Carrier Corporation | Asymmetric double inlet backward curved blower |
US11041502B2 (en) | 2018-01-30 | 2021-06-22 | Carrier Corporation | Double inlet backward curved blower |
US11873831B2 (en) | 2018-01-30 | 2024-01-16 | Carrier Corporation | Double inlet backward curved blower |
US20220381508A1 (en) * | 2021-05-28 | 2022-12-01 | Grad Aps | Apparatus for beverage container temperature control |
Also Published As
Publication number | Publication date |
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WO2010118942A1 (en) | 2010-10-21 |
EP2419645A1 (en) | 2012-02-22 |
CN102395796A (en) | 2012-03-28 |
DE102009002418A1 (en) | 2010-10-21 |
KR20120012794A (en) | 2012-02-10 |
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