CN115559938A - Fan impeller - Google Patents

Fan impeller Download PDF

Info

Publication number
CN115559938A
CN115559938A CN202210767907.5A CN202210767907A CN115559938A CN 115559938 A CN115559938 A CN 115559938A CN 202210767907 A CN202210767907 A CN 202210767907A CN 115559938 A CN115559938 A CN 115559938A
Authority
CN
China
Prior art keywords
fan
wheel
fan wheel
motor vehicle
blades
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.)
Pending
Application number
CN202210767907.5A
Other languages
Chinese (zh)
Inventor
舒布哈姆·卡布拉
普拉萨德·坎姆卡尔
约尔格·基利恩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of CN115559938A publication Critical patent/CN115559938A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • 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
    • F04D29/327—Rotors specially for elastic fluids for axial flow pumps for axial flow fans with non identical 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially 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
    • 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
    • F04D29/384—Blades characterised by form
    • F04D29/386—Skewed 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
    • 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
    • F04D29/388—Blades characterised by construction
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Abstract

The invention relates to a fan wheel (1), in particular for a motor vehicle (3), which rotates about a rotational axis (4) during operation and which has a plurality of fan blades (6) which follow one another in a circumferential direction (7) extending about the rotational axis (4), wherein each fan blade (6) has a leading edge (9) and a trailing edge (10) facing away from the leading edge (9) in the circumferential direction (7). Reduction of noise generation of the fan impeller (1) is achieved by: the trailing edges (10) of at least two of the fan blades (6) are formed in different ways. The invention also relates to a fan arrangement (2) having such a fan wheel (1) and to a motor vehicle (3) having such a fan arrangement (2).

Description

Fan impeller
Technical Field
The invention relates to a fan wheel, in particular for a motor vehicle, having a plurality of fan blades which follow one another in the circumferential direction and each have a leading edge and a trailing edge. The invention also relates to a fan arrangement having such a fan wheel and to a motor vehicle having such a fan arrangement.
Background
In operation, the fan wheel rotates about an axis of rotation, thereby delivering air. For this purpose, the fan wheel has a plurality of fan blades following one another in a circumferential direction running around the axis of rotation. Each fan blade has a leading edge and a trailing edge facing away from the leading edge in the circumferential direction. Prior art fan wheels typically have leading and trailing edges that are formed in a flat manner. As a result, undesirable acoustic effects occur during operation of the fan wheel and result in the generation of higher sounds.
In order to reduce the sound generation of the fan wheel and the associated fan arrangement in a motor vehicle, it is known from DE 10 2015 014 332A1: the leading edge or the trailing edge of each fan wheel is provided with the same concave and convex portions, and the edge is configured as the outer edge of a bird wing.
Disclosure of Invention
The invention aims to: an improved or at least different embodiment is proposed for a fan wheel of the type mentioned at the outset as well as for a fan arrangement with such a fan wheel and for a motor vehicle with such a fan arrangement, which embodiment is characterized by a reduced noise generation.
According to the invention, this object is achieved by the subject matter of the independent claims. Advantageous embodiments are the subject of the dependent claims.
The invention is based on the following general idea: in a fan wheel having a plurality of fan blades following one another in the circumferential direction, each of the fan blades having a leading edge and a trailing edge facing away from the leading edge in the circumferential direction, the trailing edges of at least two of the fan blades are formed in different ways. The turbulence generated in operation by the differently formed trailing edge is therefore different. Thus, adjacent fan blades encounter different turbulence during operation. This results in different aerodynamic and thus acoustic disturbances for the fan blades during operation. As a result, the sound produced by the fan wheel has a wider bandwidth and/or includes fewer tones. As a result, the fan wheel or associated fan device reduces perceptible sound when in operation.
According to the inventive concept, the fan wheel has a plurality of fan blades following one another in the circumferential direction. The circumferential direction extends about a rotational axis of the fan wheel, about which the fan wheel rotates during operation. Each fan blade has a leading edge in a circumferential direction and a trailing edge facing away from the leading edge in the circumferential direction. According to the invention, the trailing edges of at least two of the fan blades are formed in different ways.
In a preferred embodiment, the leading edge of each fan blade is an edge which, during operation of the fan wheel, follows in the direction of rotation or direction of rotation of the fan wheel the trailing edge of the fan blade which is arranged in front in the direction of rotation or runs in front of it. This means that, in operation, each leading edge encounters turbulence generated by the trailing edge of the fan blade travelling ahead. As a result, at least two of the leading edges are subject to different turbulences due to the different shape of at least two of the trailing edges. This produces different aerodynamic disturbances by means of the trailing edge, which in turn produces a simple and effective reduction of the perceptible sound of the fan wheel.
In principle, the leading edge of the fan wheel can be formed in different ways.
Preferably, the leading edge of the fan wheel is formed in the same or identical manner. In particular, the leading edge of the fan wheel has a flat course. This leads to an improvement in the conveying capacity and thus to an increase in the efficiency of the fan wheel.
It is preferable that: at least three, particularly preferably all, of the fan blades have trailing edges which are formed in a different manner. This results in a particularly effective reduction of the perceived sound of the fan wheel.
In principle, different shapes of the trailing edge can be designed arbitrarily.
Embodiments are considered advantageous in which at least one of the fan blades, particularly preferably the trailing edge of each fan blade, has a recess and/or a projection in the circumferential direction. The perceived sound of the fan wheel is further reduced. It is advantageous here that: each trailing edge has a recess and/or a projection, wherein the trailing edges are formed in different ways.
In the present invention, the recesses and protrusions can be understood as shapes that protrude from the fan blades at the trailing edge in the circumferential direction or shapes that enter into the trailing edge of the fan wheel.
An embodiment is considered advantageous in which the trailing edge of at least one of the fan blades is formed in the manner of the outer edge of a bird wing, in particular a owl wing. This means that the trailing edge runs curved in the manner of an outer edge of the bird wing and has recesses and/or protrusions. It has been shown that: a particularly effective reduction of the perceptible sound can thereby be achieved. It is particularly preferred that all trailing edges are formed in the manner of the outer edge of a bird wing, in particular a owl wing, wherein all trailing edges are formed in a different manner.
In practice, the fan wheel has a hub at which the fan blades are mounted and from which they project outwards.
The fan blades of the fan wheel, in particular the entire fan wheel, can be made of any material and material.
In particular, it is conceivable: the fan blades are made of hard plastic. The fan wheel is therefore implemented in a cost-effective and weight-saving manner.
It is conceivable that: the fan blades are jointly produced by injection molding, in particular injection molding. In particular, it is conceivable: the entire fan wheel is produced by this injection method. This results in: the fan wheel is simple and inexpensive to produce.
In practice, fan impellers are used in fan units for conveying air. The fan device has a corresponding drive (e.g., an electric drive) for driving the fan wheel and thus for rotating the fan wheel about the axis of rotation.
In principle, the fan wheel can convey air in any manner. In particular, the fan wheel is an axial fan wheel.
In principle, a fan wheel or a fan device can be used in any application.
In particular, it is conceivable: fan devices are used in motor vehicles in order to convey air in the motor vehicle, in particular to ventilate the motor vehicle. The motor vehicle or a component of the motor vehicle is advantageously cooled by ventilation.
Preferably, the fan device is used for ventilating, preferably cooling, the drive assembly of the motor vehicle. This means that the motor vehicle has a drive assembly, wherein the fan device, when operating, ventilates the drive assembly, preferably cools it.
It is preferable that: the drive assembly is at least partially electrically powered. In particular, the drive assembly has an electric motor and/or a battery, preferably a rechargeable battery. In this case, the electric motor and/or the battery are ventilated, preferably in order to cool them, when the fan device is in operation. In such a drive assembly, noise generated by the drive assembly during operation is reduced. Thus, the sound produced by the fan unit or fan wheel can be perceived more strongly than with a drive assembly having an operating internal combustion engine. Such perceptible noise of the fan device or of the fan wheel is reduced by the fan wheel and/or the fan device according to the invention.
Further important features and advantages of the invention emerge from the dependent claims, the figures and the associated description of the figures with reference to the figures.
It goes without saying that the features mentioned above and those yet to be explained below can be used not only in the respectively given combination but also in other combinations or individually without departing from the scope of the invention.
Drawings
Preferred embodiments of the present invention are illustrated in the accompanying drawings and explained in more detail in the following description, wherein like reference numbers indicate identical or similar or functionally identical elements.
Schematically showing:
figure 1 shows a perspective view of a fan wheel,
figure 2 shows a perspective view of the area marked II in figure 1,
figure 3 shows a perspective view of the area marked III in figure 1,
fig. 4 shows a highly simplified, circuit-diagram-like representation of a motor vehicle having a fan wheel.
Detailed Description
For example, as shown in fig. 1 to 4, the fan wheel 1 is a component of the fan device 2 shown in fig. 4. As shown in fig. 4, the fan apparatus 2 can be used in a motor vehicle 3.
The fan wheel 1 rotates during operation about a rotational axis 4, which at the same time defines an axial direction 5. The fan wheel 1 has a plurality of fan blades 6 (also referred to as fan blades 6) which follow one another in the circumferential direction 7 and which convey air during operation. The circumferential direction 7 extends about the axis of rotation 4 or about the axial direction 5. In the exemplary embodiment shown, the fan wheel 1 conveys air axially (see fig. 4) during operation and is designed as an axial fan wheel 11.
As can be gathered from fig. 1 to 3, the fan wheel 1 of the illustrated embodiment has a central hub 8 (also referred to as hub 8) from which the fan blades 6 project. Each fan blade 6 has a leading edge 9 in the circumferential direction 7 and a trailing edge 10 facing away from the leading edge 9 in the circumferential direction 7.
In the embodiment shown in fig. 1 to 3, each fan blade 6 has a curved shape such that the leading edge 9 and the trailing edge 10 of each fan blade 6 are formed in a curved manner. In the exemplary embodiment shown, the fan wheel 1 has, by way of example only, nine fan blades 6. As can be gathered from fig. 1 to 3, the trailing edges 10 of at least two of the fan blades 6 are formed in a different manner. The leading edge 9 of each fan blade 6 is the edge of the fan blade 6 which, when the fan wheel 1 is operated in the direction of rotation 12 of the fan wheel 1, follows the trailing edge 10 of the preceding fan blade 6 in the direction of rotation 12 in the circumferential direction 7. In the embodiment shown, all trailing edges 10 have different shapes. In contrast, in the embodiment shown, the leading edge 9 is constructed in the same way.
The fan blades 6, in particular the fan impeller 1, are made of plastic, in particular by injection molding, for example.
From fig. 1 to 3 it can be gathered that: in the embodiment shown, each trailing edge 10 has a recess 13 and a projection 14. Here, the concave portion and the convex portion are such that each trailing edge is formed in the form of an outer edge of the bird wing 15, particularly the owl wing 15 a.
In operation, each trailing edge 10 generates turbulence (not shown) that the fan blades 6 traveling behind encounter with the leading edge 9. As a result, at least two of the fan blades 6 (in the illustrated embodiment, all of the fan blades 6) experience different turbulence during operation. This results in: the aerodynamic interference is different for at least two of the fan blades 6 (in the embodiment shown, for all fan blades 6). Correspondingly, the sound and thus the noise generated by the operation of the fan wheel 1 has a wider bandwidth and comprises fewer tones. This means that the fan wheel 1 generates less perceptible noise during operation.
As described above, the fan impeller 1 is used in the fan apparatus 2. The fan arrangement 2 has a drive 16 (for example an electric drive 16 a) for driving the fan wheel 1 and thus for rotating the fan wheel 1 about the axis of rotation 4. The drive 16 is connected to the hub 8 via a shaft 17, so that when the fan wheel 1 is operated, the drive 16 rotates about the axis of rotation 4 to convey air.
As shown in fig. 4, the fan device 2 and thus the fan impeller 1 can be used in a motor vehicle 3. In the exemplary embodiment shown, the fan device 2 serves for ventilating and thus cooling the drive assembly 18 of the motor vehicle 1. The motor vehicle 3 is driven by a drive assembly 18. Here, the drive assembly 18 is in driving connection with at least one wheel 19 of the motor vehicle 3, as indicated by the dashed line.
In the illustrated embodiment, the drive assembly 18 is at least partially, and preferably fully, electrically powered. In the illustrated embodiment, the drive assembly 18 includes an electric motor 20 and a rechargeable battery 21. In this case, the fan device 2 is used to ventilate and thus cool the drive assembly 18, in particular the electric motor 20 and/or the battery 21. In particular, when charging the battery 21, the following advantages are obtained: the noise perceptible from the outside, which is usually generated by the motor vehicle 3 stationary for this purpose, is reduced.

Claims (10)

1. A fan wheel (1), in particular for a motor vehicle (3),
-wherein the fan wheel (1) rotates about a rotation axis (4) when in operation,
-the fan wheel has a plurality of fan blades (6) following one another in a circumferential direction (7) running around the axis of rotation (4),
-wherein each fan blade (6) has a leading edge (9) in the circumferential direction (7) and a trailing edge (10) facing away from the leading edge (9) in the circumferential direction (7),
it is characterized in that the preparation method is characterized in that,
the trailing edges (10) of at least two of the fan blades (6) are formed in different ways.
2. The fan wheel according to claim 1,
it is characterized in that the preparation method is characterized in that,
during operation of the fan wheel (1), the leading edges (9) follow the trailing edges (10) of the preceding fan blades (6) in the direction of rotation (12) of the fan wheel (1) in the direction of rotation (12).
3. Fan impeller according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the trailing edges (10) of all the fan blades (6) are formed in different ways.
4. Fan impeller according to one of claims 1 to 3,
it is characterized in that the preparation method is characterized in that,
the trailing edge (10) of at least one of the fan blades (6) has a recess (13) and/or a projection (14) in the circumferential direction (7).
5. Fan impeller according to one of claims 1 to 4,
it is characterized in that the preparation method is characterized in that,
the trailing edge (10) of at least one of the fan blades (6) is formed as the outer edge of a bird wing (15), in particular a owl wing (15 a).
6. Fan impeller according to one of claims 1 to 5,
it is characterized in that the preparation method is characterized in that,
the fan blades (6) are made of plastic.
7. Fan impeller according to one of claims 1 to 6,
it is characterized in that the preparation method is characterized in that,
the fan blades (6) are jointly manufactured by means of an injection method.
8. Fan device (2), in particular fan device (2) for a motor vehicle (3), having a fan wheel (1) according to one of claims 1 to 7 and a drive (16), which, in operation, rotates the fan wheel (1) about an axis of rotation (4).
9. A motor vehicle (3) having a drive assembly (18) and a fan device (2) according to claim 8, which, in operation, ventilates the drive assembly (18).
10. A motor vehicle in accordance with claim 9,
it is characterized in that the preparation method is characterized in that,
the fan device (3) ventilates an electric motor (20) and/or a battery (21) of the drive assembly (18) during operation.
CN202210767907.5A 2021-07-01 2022-06-30 Fan impeller Pending CN115559938A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021206929.0A DE102021206929A1 (en) 2021-07-01 2021-07-01 fan wheel
DE102021206929.0 2021-07-01

Publications (1)

Publication Number Publication Date
CN115559938A true CN115559938A (en) 2023-01-03

Family

ID=84492429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210767907.5A Pending CN115559938A (en) 2021-07-01 2022-06-30 Fan impeller

Country Status (2)

Country Link
CN (1) CN115559938A (en)
DE (1) DE102021206929A1 (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5603607A (en) * 1994-11-08 1997-02-18 Mitsubishi Jukogyo Kabushiki Kaisha Propeller fan
JP2002054596A (en) * 2000-08-10 2002-02-20 Japan Servo Co Ltd Axial-flow fan
CN1756909A (en) * 2003-03-05 2006-04-05 汉拏空调株式会社 Axial-flow fan
CN203516197U (en) * 2012-09-19 2014-04-02 东芝开利株式会社 Propeller fan and outdoor unit of air conditioner
CN104364532A (en) * 2012-05-31 2015-02-18 株式会社电装 Air blower
CN205101289U (en) * 2015-10-28 2016-03-23 广东顺威精密塑料股份有限公司 Novel axial flow wind wheel
CN106766046A (en) * 2016-11-15 2017-05-31 广东美的制冷设备有限公司 Air-supply assembly and air-conditioner
CN107489650A (en) * 2017-09-20 2017-12-19 江苏富丽华通用设备股份有限公司 A kind of axial flow blower
CN108980107A (en) * 2018-08-09 2018-12-11 浙江大学 A kind of bionical fan vane
US20190226492A1 (en) * 2016-07-05 2019-07-25 Nidec Corporation Serrated fan blade, axial fan, and centrifugal fan
CN111425454A (en) * 2020-03-31 2020-07-17 Tcl空调器(中山)有限公司 Axial flow fan blade and air conditioner outdoor unit
CN112012960A (en) * 2020-08-03 2020-12-01 珠海格力电器股份有限公司 Fan blade assembly, fan assembly and air conditioner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015014332A1 (en) 2015-11-05 2016-05-12 Daimler Ag Functional element for a motor vehicle
CN212563778U (en) 2019-12-31 2021-02-19 佛山市云米电器科技有限公司 Double-blade cluster blade structure and axial flow fan

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5603607A (en) * 1994-11-08 1997-02-18 Mitsubishi Jukogyo Kabushiki Kaisha Propeller fan
JP2002054596A (en) * 2000-08-10 2002-02-20 Japan Servo Co Ltd Axial-flow fan
CN1756909A (en) * 2003-03-05 2006-04-05 汉拏空调株式会社 Axial-flow fan
CN104364532A (en) * 2012-05-31 2015-02-18 株式会社电装 Air blower
CN203516197U (en) * 2012-09-19 2014-04-02 东芝开利株式会社 Propeller fan and outdoor unit of air conditioner
JP2014077437A (en) * 2012-09-19 2014-05-01 Toshiba Carrier Corp Propeller fan and outdoor air conditioner unit
CN205101289U (en) * 2015-10-28 2016-03-23 广东顺威精密塑料股份有限公司 Novel axial flow wind wheel
US20190226492A1 (en) * 2016-07-05 2019-07-25 Nidec Corporation Serrated fan blade, axial fan, and centrifugal fan
CN106766046A (en) * 2016-11-15 2017-05-31 广东美的制冷设备有限公司 Air-supply assembly and air-conditioner
CN107489650A (en) * 2017-09-20 2017-12-19 江苏富丽华通用设备股份有限公司 A kind of axial flow blower
CN108980107A (en) * 2018-08-09 2018-12-11 浙江大学 A kind of bionical fan vane
CN111425454A (en) * 2020-03-31 2020-07-17 Tcl空调器(中山)有限公司 Axial flow fan blade and air conditioner outdoor unit
CN112012960A (en) * 2020-08-03 2020-12-01 珠海格力电器股份有限公司 Fan blade assembly, fan assembly and air conditioner

Also Published As

Publication number Publication date
DE102021206929A1 (en) 2023-01-05

Similar Documents

Publication Publication Date Title
EP0834022B1 (en) Axial fan assembly
KR101019832B1 (en) Centrifugal blower
US7244110B2 (en) Fan hub assembly for effective motor cooling
KR100978594B1 (en) Automotive fan assembly with flared shroud and fan with conforming blade tips
EP0921318A2 (en) Fan assembly having motor cooling enhancement
MXPA98000703A (en) High efficiency axial fan assembly and under ru
US7309935B2 (en) Fan impeller for electrical machines
WO2011048884A1 (en) Heat exchange module for vehicle
US8167562B2 (en) Centrifugal fan and blower having the same
US9140270B2 (en) Centrifugal fan assembly
US9716420B2 (en) Fan and electric machine assembly and methods therefor
CN1076447C (en) Radial impeller
KR101528919B1 (en) Double axial flow fan for motor vehicle
JP2004060447A (en) Multiblade blower
JPH02275098A (en) Mounting device for fan
CN115559938A (en) Fan impeller
CN207510213U (en) A kind of wheel hub of vehicle radiator fan
EP0074068B1 (en) Cooling device of automotive alternator
JP2022523037A (en) Car fan wheel
US11261871B2 (en) Dual stage blower assembly
KR101654741B1 (en) Cooling fan for automotive vehicles
CN109026765A (en) Impeller, centrifugal blower and range hood for centrifugal blower
JPH0431697A (en) Vane structure of axial flow blower
KR20120025267A (en) Cooling fan device for automotive vehicles
CN205565959U (en) A generator for motor vehicle and front end housing thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination