WO2006084674A1 - Ventilateur axial - Google Patents

Ventilateur axial Download PDF

Info

Publication number
WO2006084674A1
WO2006084674A1 PCT/EP2006/001095 EP2006001095W WO2006084674A1 WO 2006084674 A1 WO2006084674 A1 WO 2006084674A1 EP 2006001095 W EP2006001095 W EP 2006001095W WO 2006084674 A1 WO2006084674 A1 WO 2006084674A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
axial
axial fan
hub
combustion engine
Prior art date
Application number
PCT/EP2006/001095
Other languages
German (de)
English (en)
Inventor
Uwe Aschermann
Original Assignee
Behr Gmbh & Co. Kg
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 Behr Gmbh & Co. Kg filed Critical Behr Gmbh & Co. Kg
Priority to US11/815,577 priority Critical patent/US20080156282A1/en
Priority to AT06706737T priority patent/ATE466196T1/de
Priority to DE502006006847T priority patent/DE502006006847D1/de
Priority to EP06706737A priority patent/EP1851443B1/fr
Priority to JP2007553569A priority patent/JP2008530414A/ja
Publication of WO2006084674A1 publication Critical patent/WO2006084674A1/fr

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
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/16—Geometry two-dimensional parabolic

Definitions

  • the invention relates to an axial fan for a radiator of an internal combustion engine, in particular of a motor vehicle, with a rotatably driven hub, are fixed to the fan blades, which are bounded radially inwardly by an inner diameter and radially outside of an outer diameter.
  • Such a fan has the task of providing a sufficient amount of cooling air when the wind is insufficient, for example, when driving slowly or when the vehicle is stationary.
  • the required delivery volume of the fan is very different.
  • the pressure build-up required to deliver the cooling air flow is provided by the fan.
  • the fan obstructs the flow of air, increasing the dynamic pressure.
  • the object of the invention is to provide an axial fan for a radiator of an internal combustion engine, in particular of a motor vehicle, with a rotatably driven hub on which fan blades are fixed, which are bounded radially inward by an inside diameter and radially outside by an outside diameter.
  • the compact design and is designed so that it generates a large mass flow at high pressure during operation.
  • the object is achieved in an axial fan for a radiator of an internal combustion engine, in particular of a motor vehicle, with a rotatably driven hub, are fixed to the fan blades, the radially inside of an inner diameter and radially outward of an outer diameter are limited, achieved that the Ratio between the inner diameter and the outer diameter is greater than 40 percent.
  • the dimensions of the enclosed between the inner and outer diameter fan passage area are adapted in conventional fans for the cooling of an internal combustion engine to the size of the radiator to ensure a sufficiently large air passage area even when driving fast and with the fan off.
  • a fan is provided which is as small as possible, so that a venetian blind, which releases an additional air passage area during high-speed travel, can be as large as possible.
  • the ratio between the inner diameter and the outer diameter of the fan passage area is referred to as hub ratio.
  • the hub ratio according to the invention creates an axial fan with a high power density.
  • a preferred embodiment of the axial fan is characterized in that the ratio of the projecting from the fan blades on the fan passage surface fan blade surfaces to the annular fan passage area is greater than 60 percent.
  • the ratio of the fan blade areas projected from the fan blades to the fan passage area to the annular fan passage area is also referred to as the coverage ratio.
  • the covering ratio according to the invention ensures that the fan generates sufficient airflow at normal speeds.
  • a further preferred exemplary embodiment of the axial fan is characterized in that the fan blades are sown in a direction opposite to the air flow direction.
  • the crescent-shaped design of the fan blades has proved to be particularly advantageous in the context of the present invention.
  • a further preferred exemplary embodiment of the axial fan is characterized in that the leading edge of the fan blades has a parabolic shape. gene course has.
  • the parabolic formation of the leading edges of the fan blades has proven to be particularly advantageous in the context of the present invention.
  • a further preferred exemplary embodiment of the axial fan is characterized in that the origin or apex of the parabola coincides with the intersection of the outer diameter of the fan passage area with the front edge of the associated fan blade.
  • a further preferred embodiment of the axial fan is characterized in that the angle of attack at the front edge of the fan blades over the radius of the fan passage surface is greater than 20 degrees.
  • An angle of attack is the angle enclosed between a radius and a tangent to the leading edge of a fan blade.
  • Another preferred embodiment of the axial fan is characterized in that the profile length of the fan blades over the radius of the fan passage area is almost constant.
  • the profile length is the extent of the fan blades in the air flow direction or in the axial direction.
  • Another preferred exemplary embodiment of the axial fan is characterized in that the deviations of the profile length from a mean profile length are less than +/- 6 percent.
  • a cooler for an internal combustion engine in particular a motor vehicle, which is flowed through by a medium, in particular of coolant, which serves for example for cooling the internal combustion engine, and which has an air passage surface
  • the drive in a so-called Stauffybe- from an air flow flows through a first air flow path, which is closed by a shutter, and is flowed through in a so-called fan operation of an air flow along a second air flow path
  • the above-stated object is achieved in that the second air flow path through a previously written fan runs, which is arranged between the radiator and the internal combustion engine.
  • Figure 1 is a schematic representation of an axial fan according to the invention in plan view
  • Figure 2 shows the axial fan of Figure 1, wherein the projecting from the fan blades on the fan passage surface fan blade surfaces are hatched.
  • Figure 1 shows an axial fan 1, which comprises a hub 2, are attached to the nine fan blades 11 to 19.
  • the hub is driven in a clockwise direction by, for example, a fluid friction clutch or electric motor (not shown).
  • the unit consisting of the axial fan 1 and the fluid friction clutch serves to convey cooling air through the radiator of a motor vehicle.
  • the structure and function of a motor vehicle radiator are assumed to be known and not further explained here.
  • the fan blades 11 to 19 have a common inner diameter Di and a common outer diameter Da on. Between the inner diameter Di and the outer diameter Da, the axial fan 1 has an annular passage area for air. When the hub 2 is rotated, then the fan blades 11 to 19 rotate in a clockwise direction, as indicated by an arrow 26. Each fan blade 11 to 19 has a front edge which is parabolic. The leading edge of the fan blade 11 is denoted by 28. The leading edge of the fan blade 12 is designated 29. At the front edge 28 of the fan blade 11 is a part of a Parabola 30 drawn whose vertex or origin 31 coincides with the intersection of the leading edge 28 and the outer diameter Da.
  • the leading edge 29 of the fan blade 12 has an angle of attack ⁇ , which is connected between a tangent to the front edge and the associated radius. Between a tangent T1 and a radius R1 an angle of attack ⁇ 1 is included. Between a tangent T2 and a radius R2 an angle of attack ⁇ 2 is included. Between a tangent T3 and a radius R3 an angle of attack ⁇ 3 is included.
  • the angles of attack ⁇ 1 to ⁇ 3 are each about 40 degrees.
  • the axial fan 1 from FIG. 1 is shown in the same view as in FIG. 1, wherein the fan blade surfaces projected by the fan blades 11 to 19 are hatched into the annular surface projected between the outer diameter Da and the inner diameter Di.
  • the ratio of the projected leaf areas to the annular area of the axial fan 1 is referred to as the coverage ratio.
  • the blade width of the fan blades 11 to 19 is selected so that a coverage ratio of more than 60 percent results.
  • the ratio of the inner diameter Di to the outer diameter Da is referred to as a hub ratio and is more than 40 percent in the axial fan 1 according to the invention.
  • the fan blades 11 to 19 of the axial fan 1 are sown backwards.
  • the angles ⁇ 1 to ⁇ 3 (see FIG. 1) between the front edge 29 and the associated radius R1, R2, R3 are always greater than 20 degrees.
  • the flat front edges all follow a parabolic course, as illustrated by the front edge 28 of the fan blade 11.
  • the origin of the parabola is at the junction between the leading edge of the blade 28 and the outer diameter Da, which is also called a jacket.
  • the profile lengths are almost constant over the radius. The deviations from the average profile length are less than + / 6 percent.
  • the inventive design allows a very compact fan design. Due to the very compact axial fan 1, the shutter area of the radiator can be correspondingly large.
  • hub ramps may be provided in the axial fan according to the invention, which may be provided on the hub of the fan.
  • each case opposite to the direction of rotation rising hub ramps can be provided, which are limited in each case to the outside by an outer surface.
  • DE 41 17 342 C1 the disclosure of which hereby expressly belongs to the disclosure of the present application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne un ventilateur axial destiné à un dispositif de refroidissement d'un moteur à combustion interne en particulier d'un véhicule automobile, le ventilateur axial comprenant un moyeu (2) entraîné en rotation, auquel sont fixées des ailettes (11-19) qui sont délimitées radialement vers l'intérieur par un diamètre intérieur (Di) et radialement vers l'extérieur par un diamètre extérieur (Da). Afin d'obtenir un ventilateur axial compact, le rapport entre le diamètre intérieur (Di) et le diamètre extérieur (Da) est supérieur à 40 %.
PCT/EP2006/001095 2005-02-09 2006-02-08 Ventilateur axial WO2006084674A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US11/815,577 US20080156282A1 (en) 2005-02-09 2006-02-08 Axial Ventilator
AT06706737T ATE466196T1 (de) 2005-02-09 2006-02-08 Axiallüfter
DE502006006847T DE502006006847D1 (de) 2005-02-09 2006-02-08 Axiallüfter
EP06706737A EP1851443B1 (fr) 2005-02-09 2006-02-08 Ventilateur axial
JP2007553569A JP2008530414A (ja) 2005-02-09 2006-02-08 アキシャルベンチレータ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005005977A DE102005005977A1 (de) 2005-02-09 2005-02-09 Axiallüfter
DE102005005977.5 2005-02-09

Publications (1)

Publication Number Publication Date
WO2006084674A1 true WO2006084674A1 (fr) 2006-08-17

Family

ID=36291948

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/001095 WO2006084674A1 (fr) 2005-02-09 2006-02-08 Ventilateur axial

Country Status (6)

Country Link
US (1) US20080156282A1 (fr)
EP (1) EP1851443B1 (fr)
JP (1) JP2008530414A (fr)
AT (1) ATE466196T1 (fr)
DE (2) DE102005005977A1 (fr)
WO (1) WO2006084674A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010033051A1 (fr) * 2008-09-17 2010-03-25 Балакирев Евгений Борисович Roue de travail axiale

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012011594B4 (de) * 2012-06-13 2016-09-22 Decoma (Germany) Gmbh Steuerbarer Lufteinlass für ein Kraftfahrzeug mit Zylinderlamellen
TWD160897S (zh) * 2013-10-09 2014-06-01 訊凱國際股份有限公司 散熱風扇(一)
TWD160896S (zh) * 2013-10-09 2014-06-01 訊凱國際股份有限公司 散熱風扇(二)
US10093152B2 (en) 2014-06-09 2018-10-09 Dometic Sweden Ab Shrouded roof vent for a vehicle
CN107407290B (zh) 2015-04-08 2019-07-26 雷顿股份公司 风扇叶片及相关方法
USD765188S1 (en) * 2015-04-20 2016-08-30 Calogero A. LaRussa Flying propeller
US10400783B1 (en) * 2015-07-01 2019-09-03 Dometic Sweden Ab Compact fan for a recreational vehicle
USD787037S1 (en) * 2015-07-01 2017-05-16 Dometic Sweden Ab Fan
US11027595B2 (en) 2016-10-13 2021-06-08 Dometic Sweden Ab Roof fan assembly
USD832987S1 (en) 2016-10-13 2018-11-06 Dometic Sweden Ab Roof fan shroud
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
WO2020028010A1 (fr) 2018-08-02 2020-02-06 Horton, Inc. Ventilateur de refroidissement de véhicule à faible plénitude
US11536279B1 (en) * 2022-03-07 2022-12-27 Stokes Technology Development Ltd. Thin type counter-rotating axial air moving device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117342C1 (fr) * 1991-05-27 1992-09-10 Behr Gmbh & Co, 7000 Stuttgart, De
EP0913584A1 (fr) * 1992-05-15 1999-05-06 Siemens Canada Limited Ventilateur axial
DE19963411A1 (de) * 1998-12-30 2000-08-17 Valeo Thermique Moteur Sa Axialventilator
US20030026699A1 (en) * 2000-11-08 2003-02-06 Stairs Robert W. High efficiency, inflow-adapted, axial-flow fan
US20030194327A1 (en) * 1998-07-20 2003-10-16 Nmb (Usa), Inc. Impeller blade for axial flow fan having counter-rotating impellers

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DE3335648A1 (de) * 1983-09-30 1985-04-18 Siemens AG, 1000 Berlin und 8000 München Leitradloser axialventilator, insbesondere zur belueftung von waermetauschern
US4569632A (en) * 1983-11-08 1986-02-11 Airflow Research And Manufacturing Corp. Back-skewed fan
US4971520A (en) * 1989-08-11 1990-11-20 Airflow Research And Manufacturing Corporation High efficiency fan
US5513951A (en) * 1993-03-29 1996-05-07 Nippondenso Co., Ltd. Blower device
US5996685A (en) * 1995-08-03 1999-12-07 Valeo Thermique Moteur Axial flow fan
US6106228A (en) * 1996-09-06 2000-08-22 Siemens Electric Limited Fan shroud air door assembly
DE19652398A1 (de) * 1996-12-17 1998-06-18 Behr Gmbh & Co Kühler für ein Kraftfahrzeug
DE19710608B4 (de) * 1997-03-14 2007-10-31 Behr Gmbh & Co. Kg Axiallüfter für den Kühler eines Verbrennungsmotors
US6544010B1 (en) * 2000-06-09 2003-04-08 Lg Electronics Co., Ltd. Axial flow fan with brushless direct current motor
US20060211364A1 (en) * 2001-08-01 2006-09-21 Friedrich Brotz Cooling system for motor vehicles and method for controlling at least one air mass flow through a radiator
JP2003120588A (ja) * 2001-10-18 2003-04-23 Denso Corp 送風装置
KR100484828B1 (ko) * 2002-11-27 2005-04-22 엘지전자 주식회사 냉장고의 냉기순환용 축류팬
KR100550529B1 (ko) * 2003-12-30 2006-02-10 엘지전자 주식회사 냉장고용 원심팬
JP4679074B2 (ja) * 2004-05-19 2011-04-27 アイシン化工株式会社 冷却ファン

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117342C1 (fr) * 1991-05-27 1992-09-10 Behr Gmbh & Co, 7000 Stuttgart, De
EP0913584A1 (fr) * 1992-05-15 1999-05-06 Siemens Canada Limited Ventilateur axial
US20030194327A1 (en) * 1998-07-20 2003-10-16 Nmb (Usa), Inc. Impeller blade for axial flow fan having counter-rotating impellers
DE19963411A1 (de) * 1998-12-30 2000-08-17 Valeo Thermique Moteur Sa Axialventilator
US20030026699A1 (en) * 2000-11-08 2003-02-06 Stairs Robert W. High efficiency, inflow-adapted, axial-flow fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010033051A1 (fr) * 2008-09-17 2010-03-25 Балакирев Евгений Борисович Roue de travail axiale

Also Published As

Publication number Publication date
DE102005005977A1 (de) 2006-08-10
US20080156282A1 (en) 2008-07-03
DE502006006847D1 (de) 2010-06-10
JP2008530414A (ja) 2008-08-07
ATE466196T1 (de) 2010-05-15
EP1851443B1 (fr) 2010-04-28
EP1851443A1 (fr) 2007-11-07

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