WO2011012351A1 - Führungsgeometrie für halbaxiale lüfterräder - Google Patents
Führungsgeometrie für halbaxiale lüfterräder Download PDFInfo
- Publication number
- WO2011012351A1 WO2011012351A1 PCT/EP2010/057623 EP2010057623W WO2011012351A1 WO 2011012351 A1 WO2011012351 A1 WO 2011012351A1 EP 2010057623 W EP2010057623 W EP 2010057623W WO 2011012351 A1 WO2011012351 A1 WO 2011012351A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fan
- vanes
- suction
- outflow
- wheel
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—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
- 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
- F04D29/26—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
- F04D29/30—Vanes
Definitions
- the invention relates to a fan.
- the invention relates to a fan in a fan for use in a motor vehicle.
- a semi-axial fan wheel represents a combination of an axial and a radial fan.
- An axial section of the fan wheel sucks the air to be conveyed in the manner of a propeller from a direction parallel to the axis of rotation.
- a radial section of the fan wheel sucks the air to be conveyed in the manner of a propeller from a direction parallel to the axis of rotation.
- Fan wheel flows from the already sucked air in the manner of a centrifuge in the radial direction.
- a deflection element In order to redirect air which has passed through the axial section of a semi-axial fan wheel to the radial section, a deflection element is provided in the area between the two sections.
- the deflector is usually attached to a fan motor and may, for example, have a tapered shape.
- the radially extending outflow vanes of the axial portion of the semi-axial impeller do not abut against the fixed deflector to minimize frictional losses and noise. Due to the consequent gap between the ends of the discharge vanes and the deflector escapes a certain proportion of the sucked air, instead of leaving only between Abströmschaufeln through the fan in the radial direction. The efficiency of such a semi-axial fan wheel therefore remains below a maximum possible. Disclosure of the invention
- the invention is therefore based on the object to provide a fan that overcomes this disadvantage and beyond is easy to manufacture.
- a fan of a fan includes suction vanes having an entrance edge facing an axial inlet direction of the fan and exit vanes having a trailing edge facing a radial outlet direction of the fan and a deflector for deflecting air from an effective area of the suction vanes to an effective region of the outflow vanes, wherein the deflecting element is positively and / or non-positively connected to at least one outflow vane.
- the deflection element follows the rotational movement of the fan wheel with respect to a fan motor.
- the connection of the baffle with at least one outflow vane makes it possible to eliminate a gap between the outflow vane and the baffle, and thus to ensure that the outflowed air receives the desired direction and velocity when it flows off.
- several or all outflow blades may be connected to the deflecting element, so that all of the outflowed air must flow between the outflows.
- At least one of the suction vanes may be integrally formed with a discharge vane.
- a combined suction and exhaust scoop may have a suction section and an outflow section.
- One of the boundary surfaces of the combined combined suction and discharge vane may partially or fully abut the deflector.
- the number of exhaust vanes may also be larger or smaller than the number of suction vanes.
- additional discrete exhaust vanes may be formed in the fan in addition to combined suction and exhaust vanes.
- the fan wheel comprises twice as many outflow blades like combined air blades. In a corresponding manner, the number of suction vanes can exceed the number of outflow vanes.
- the deflector may be connected by a mating connection with the discharge vane. This is especially true in a production of fan wheels in large
- the mating connection can have, for example, pins and corresponding recesses.
- the deflecting element may have a peripheral edge into which a plurality of outflow blades engage.
- positive or non-positive connections between the deflector and the discharge vanes possible, for example, latching, gluing, riveting, screwing, welding, soldering, wedging or caulking.
- the suction vanes and the discharge vanes may form an integral part of the fan wheel.
- a one-piece element may additionally have a hub and / or stiffening elements which follow a circumference or a circumferential contour of the fan wheel.
- the stiffening element comprises a hollow cylindrical portion which defines the suction vanes in a radially outward direction.
- the one-piece element may be free of undercuts with respect to a rotationally symmetrical to the axis of rotation partition surface.
- the one-piece element can be produced by casting or injection molding in a permanent mold which is divisible along the dividing surface, so that the one-piece element can be demolded from the permanent mold.
- the division surface may be a portion of a plane perpendicular to the axis of rotation.
- the fan may further include a fan motor with an axis supporting the fan, wherein a drive torque is transmitted by means of the deflector from the fan motor to the fan.
- the fan may be sprayed, for example, to the axis or a hub-side recording of the axis.
- the axis may be connected to a stator or a rotor of the fan motor, wherein the axis may be rotatably mounted on one side or on two sides.
- the axle can be set up to transmit shear, bending, tensile and / or shear forces between the fan wheel and the stator or rotor of the fan motor, without transmitting transmission torque to the fan motor
- the fan motor may comprise a non-positively connected to the deflection outer rotor (external rotor). Due to the design of the external rotor, the drive torque can be introduced in a relatively large radial distance from the axis of rotation in the deflection, where the leverage forces are low, whereby a structural load on the deflection is kept low.
- a stator enclosed by the outer rotor of the fan motor optimally fill a space on the side facing away from the fan of the deflector, so that the fan can be constructed very compact.
- the outer rotor may comprise one or more permanent magnets. Due to the relatively large mass of the permanent magnet at a relatively large distance from the axis of rotation of the impeller, the rotational inertia of the impeller is high, whereby the rotation of the impeller is damped when driven by the fan motor and thus more uniform. So noise developments in the drive of the fan wheel can be minimized by alternately activated windings of the stator.
- a motor vehicle includes a fan with the fan wheel described above.
- Figure 1 is a schematic representation of a fan system in a motor vehicle
- Figure 2 is a side sectional view through a fan with fan for use in the fan system of Figure 1, and
- FIG. 3 is an isometric view of part of the fan wheel of FIG. 2.
- FIG. 1 shows a schematic illustration of a motor vehicle fan system 100.
- a motor vehicle 110 includes an intake tract 120, a fan 130 and a distribution tract 140.
- the fan 130 comprises a fan wheel 150 and a fan motor 160.
- FIG. 1 is not included optional elements of the motor vehicle fan system 100, such as filters, flaps, valves, heat exchangers, condensers and other elements that are of no further importance here.
- the fan motor 160 rotates the fan wheel 150 so that
- Air is sucked from an outside of the motor vehicle 1 10 through the intake tract 120 into the fan wheel 150 and then conveyed through the distribution wing 140 to the inside of the motor vehicle 140.
- the intake tract 120 and the distribution tract 140 are in one common
- the fan 130 may be insertable into the intake tract 120, the distribution tract 140 or the common tract in the manner of a cartridge.
- the tract may comprise an element which converts a radial flow direction of air discharged from the fan wheel 150 in a linear flow direction, for example a pressure-increasing spiral, which also compresses the streamed air.
- FIG. 2 shows the fan 130 from FIG. 1 in a lateral sectional view.
- the fan 130 comprises the fan wheel 150 and the fan motor 160, which are connected to each other by means of an axis 300.
- the fan wheel 150 includes suction vanes 210 having entry edges 220 and discharge vanes 230 having trailing edges 240.
- the suction vanes 210 extend radially outward from a hub 250 of the fan wheel to a stiffening surface 260 of the fan wheel 150 that follows a portion of the circumferential contour of the fan wheel 150.
- the suction vanes 210 are formed such that upon rotation of the
- Fan wheel 150 air is sucked in from the bottom in the axial direction.
- the suction vanes 210 merge into outflow vanes 230 which are arranged along the stiffening surface 260 in the direction of rotation.
- the exhaust vanes 230 when the fan 150 is rotated, accelerate air that has passed the suction vanes 210 in the axial direction in the circumferential direction, so that the accelerated air due to a centrifugal effect in the radial direction at the trailing edge 240 is discharged.
- the outflow blades 230 may be bent in a crescent shape for improved outflow.
- the integrally formed suction / discharge vanes 210, 230 border on top of a deflection element 270.
- the deflection element 270 is annular in the region of the hub 250 and is connected by means of a fit connection to the blades 210, 230 or to the hub 250.
- the two outflow blades 230 visible in this view, carry in the area of their trailing edges 240
- the fan motor 160 includes a stator 310 and an outer rotor 320 having a permanent magnet 330.
- the outer rotor 320 is integrally formed with the deflector 270 and receives the permanent magnet 330.
- the permanent magnet 330 may be fitted, pressed and / or glued into the outer rotor 320. A torque existing between the stator 310 and the permanent magnet 330 is applied directly to the shaft by means of the outer rotor 320
- the stator 310 can be connected in a rotationally stable manner to a surrounding structure in order to fasten the fan 130, for example in the intake tract 120 and / or in the distribution tract 140.
- the axis 300 is rotatably connected to the hub 250 and the deflector 270. This connection can be made for example by welding, gluing, pressing, locking or by a mating connection; the hub 250 may also be injection-molded or cast on the axle 300. On its upper side, the axis 300 is rotatably mounted on the stator 310 of the fan motor 160.
- the axis 300 ensures a fixation of the fan motor 160 with respect to the fan wheel 150 in the axial direction.
- the axle 300 transmits tilting, bending, and shearing forces between the fan 150 and the stator 310 of the fan motor 160.
- the axle 300 does not transmit torque, and particularly no drive torque, from the fan motor 160 to the fan 150.
- FIG. 3 shows a one-piece element 340 as part of the fan wheel 150 of FIG. 2.
- the element 340 comprises the hub 250, the stiffening surface 260, as well as a number of exhaust vanes 230 and a number of suction vanes 210, of which only one in the selected illustration Section is visible.
- the suction vanes 210 merge into a part of the outflow vanes 230; the integrated suction / outflow vanes 210/230 extend between the hub 250 and the stiffening surface 260. Between each two outflow vanes 230 integrated with suction vanes 210, a further outflow vanes 230 is formed which does not extend to the hub 250 in the radial direction.
- Those outflow vanes 230 formed integrally with suction vanes 210 carry elongated holes 290 for receiving pegs 280 formed on the deflector 270 of FIG. 2 for establishing a mating connection between the deflector 270 and the outflow vanes 230
- the one-piece element 340 is constructed in such a way that it can easily be produced in a casting or injection molding process and then unproblematically removed from the mold or injection mold.
- a permanent mold for making the integrated molding 240 may include upper and lower portions, wherein a separation surface between the portions may extend in a radial plane of the member 340 or at least partially follow the upper contour of the blades 210/230.
- the deflection element 270 from FIG. 2 can be connected to the one-piece element 340 in a simple operation. the. By the fit connection in the region of the pins 280 and slots 290 or in the region of the hub 250, the deflector 270 can be connected to the one-piece element 340 quickly and permanently.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10721026.2A EP2459883B1 (de) | 2009-07-30 | 2010-06-01 | Führungsgeometrie für halbaxiale lüfterräder |
JP2012522049A JP5709866B2 (ja) | 2009-07-30 | 2010-06-01 | 混流式ファンホイールのためのガイド構造部 |
US13/387,820 US20120189456A1 (en) | 2009-07-30 | 2010-06-01 | Guide geometry for half-axial fan wheels |
CN201080033332XA CN102472289A (zh) | 2009-07-30 | 2010-06-01 | 用于半轴向风扇轮的导向几何结构 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009028130.4 | 2009-07-30 | ||
DE102009028130A DE102009028130A1 (de) | 2009-07-30 | 2009-07-30 | Führungsgeometrie für halbaxiale Lüfterräder |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011012351A1 true WO2011012351A1 (de) | 2011-02-03 |
Family
ID=42334036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/057623 WO2011012351A1 (de) | 2009-07-30 | 2010-06-01 | Führungsgeometrie für halbaxiale lüfterräder |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120189456A1 (de) |
EP (1) | EP2459883B1 (de) |
JP (1) | JP5709866B2 (de) |
CN (1) | CN102472289A (de) |
DE (1) | DE102009028130A1 (de) |
WO (1) | WO2011012351A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10137418B2 (en) | 2013-01-14 | 2018-11-27 | Dow Global Technologies Llc | Composite polyamide membrane made via interfacial polymerization using a blend of non-polar solvents |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3358196B1 (de) * | 2015-10-02 | 2022-02-23 | IHI Corporation | Laufrad und auflader |
CN109209993B (zh) * | 2018-11-09 | 2020-08-11 | 嵊州市法帝电器有限公司 | 一种用于集成灶具的风轮及其制造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1328082A (en) * | 1970-08-24 | 1973-08-30 | Airscrew Weyroc Ltd | Fans |
DE2742962A1 (de) * | 1977-09-23 | 1979-04-05 | Siemens Ag | Geblaeseanordnung |
DE10035404A1 (de) * | 2000-07-19 | 2002-01-31 | Map Gmbh | Vorrichtung zur Zufuhr eines Atemgases |
US20050095126A1 (en) * | 2003-10-31 | 2005-05-05 | Shun-Chen Chang | Centrifugal fan and housing thereof |
DE102006057087B3 (de) * | 2006-12-04 | 2008-06-19 | Minebea Co., Ltd. | Laufrad für ein Gebläse |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6508627B2 (en) * | 2001-05-30 | 2003-01-21 | Lau Industries, Inc. | Airfoil blade and method for its manufacture |
AU2003220845B2 (en) * | 2002-04-03 | 2007-08-09 | Daikin Industries, Ltd. | Centrifugal fan rotor and manufacturing method thereof. |
US7108482B2 (en) * | 2004-01-23 | 2006-09-19 | Robert Bosch Gmbh | Centrifugal blower |
TWI267583B (en) * | 2004-06-18 | 2006-12-01 | Delta Electronics Inc | Heat-dissipating device |
DE202004012015U1 (de) * | 2004-07-31 | 2005-12-22 | Ebm-Papst Landshut Gmbh | Radialgebläserad |
US7351031B2 (en) * | 2004-11-01 | 2008-04-01 | Sunonwealth Electric Machine Industry Co., Ltd. | Centrifugal blower |
-
2009
- 2009-07-30 DE DE102009028130A patent/DE102009028130A1/de not_active Ceased
-
2010
- 2010-06-01 US US13/387,820 patent/US20120189456A1/en not_active Abandoned
- 2010-06-01 WO PCT/EP2010/057623 patent/WO2011012351A1/de active Application Filing
- 2010-06-01 EP EP10721026.2A patent/EP2459883B1/de active Active
- 2010-06-01 JP JP2012522049A patent/JP5709866B2/ja not_active Expired - Fee Related
- 2010-06-01 CN CN201080033332XA patent/CN102472289A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1328082A (en) * | 1970-08-24 | 1973-08-30 | Airscrew Weyroc Ltd | Fans |
DE2742962A1 (de) * | 1977-09-23 | 1979-04-05 | Siemens Ag | Geblaeseanordnung |
DE10035404A1 (de) * | 2000-07-19 | 2002-01-31 | Map Gmbh | Vorrichtung zur Zufuhr eines Atemgases |
US20050095126A1 (en) * | 2003-10-31 | 2005-05-05 | Shun-Chen Chang | Centrifugal fan and housing thereof |
DE102006057087B3 (de) * | 2006-12-04 | 2008-06-19 | Minebea Co., Ltd. | Laufrad für ein Gebläse |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10137418B2 (en) | 2013-01-14 | 2018-11-27 | Dow Global Technologies Llc | Composite polyamide membrane made via interfacial polymerization using a blend of non-polar solvents |
Also Published As
Publication number | Publication date |
---|---|
EP2459883B1 (de) | 2017-01-25 |
US20120189456A1 (en) | 2012-07-26 |
EP2459883A1 (de) | 2012-06-06 |
DE102009028130A1 (de) | 2011-02-03 |
CN102472289A (zh) | 2012-05-23 |
JP5709866B2 (ja) | 2015-04-30 |
JP2013500426A (ja) | 2013-01-07 |
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