EP1008761A2 - Lüfterstator - Google Patents

Lüfterstator Download PDF

Info

Publication number
EP1008761A2
EP1008761A2 EP99124390A EP99124390A EP1008761A2 EP 1008761 A2 EP1008761 A2 EP 1008761A2 EP 99124390 A EP99124390 A EP 99124390A EP 99124390 A EP99124390 A EP 99124390A EP 1008761 A2 EP1008761 A2 EP 1008761A2
Authority
EP
European Patent Office
Prior art keywords
stator
fan
elements
arm elements
arm
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.)
Withdrawn
Application number
EP99124390A
Other languages
English (en)
French (fr)
Other versions
EP1008761A3 (de
Inventor
Norman Golm
Stéphane MOREAU
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.)
Valeo Inc
Original Assignee
Valeo Inc
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 Valeo Inc filed Critical Valeo Inc
Publication of EP1008761A2 publication Critical patent/EP1008761A2/de
Publication of EP1008761A3 publication Critical patent/EP1008761A3/de
Withdrawn legal-status Critical Current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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes

Definitions

  • the present invention relates to axial flow fans and in particular at a stator device to modify the air flow coming of the fan.
  • stator devices in association with such axial flow fans, which stator are intended to straighten the air flow coming from the fan.
  • Such stator devices are static arrangements of blades or other elements which "break” the rotation components of the movement of the air and which deflect the air towards a path of more axial flow.
  • Axial flow fans are available in engine cooling systems inside of what is called a nozzle which guides the air from or towards a vehicle heat exchanger such as a radiator and which can also guide air towards or from a condenser of a system of vehicle air conditioning.
  • the movement of the vehicle causes the air to pass to through the radiator and / or the condenser of the air conditioning but under certain circumstances it is necessary to cause air movement extra and it's the movement of the fan that do that. It is desirable to use a fan high efficiency because of the need to reduce fuel consumption as much as possible and also because of the lack of fan efficiency tend to increase noise ambient, which is not desirable in vehicles modern.
  • Modern motor fans are driven by electric motors, and these motors themselves are supported inside an opening the nozzle by a number of arms, usually three, which come from the peripheral wall of the nozzle up to a support ring which is used to support engine.
  • such supports include a number of elements additional radially extending which are of curved cross section, or otherwise configured as axial direction so as to straighten in a way general movement of air from the fan.
  • a first object of the present invention is at least partially remedy the disadvantages of the prior art.
  • Another object of the present invention is increase the total efficiency of a ventilator using a stator device improved, thereby allowing the use of a smaller motor to provide the same level of cooling from the fan system.
  • Another object of the present invention is to reduce the weight of the fan assembly.
  • a stator device for an axial flow fan comprising a plurality of stator arms from a peripheral wall defining an opening for the air flow from the fan, said arms extending radially inward to a fan motor support member, wherein the stator device has one end axially rear as well as one end axially front, the rear end, in use, being disposed further from the fan, and the front end being closer to the fan, the plurality of arms stator comprising a plurality of first elements of stator arms and a corresponding plurality of second stator arm elements, the first stator arm elements being arranged axially towards the rear of the second stator arm elements, a front edge region of the first arm elements stator and a rear edge region of the second stator arm elements thereby defining a slot between these.
  • the first and second stator arm elements have a cross section curve.
  • the first and the second stator arm elements exhibit greater thickness in their respective front regions than in their respective back regions.
  • a flow fan device comprising an axial flow fan arranged in a fan nozzle in spaced relationship with a vehicle heat exchanger, the nozzle having a internal peripheral wall defining an opening for the air flow from the fan and the motor fan being attached to a support portion of fan, the system further comprising a stator device from said wall and extending up to said support portion, the stator comprising a plurality of first elements of stator arm and a corresponding plurality of second stator arm elements, the first stator arm elements being arranged axially in rear of the second stator arm elements, one front edge region of the first arm elements of stator and a rear edge region of the second stator arm elements thereby defining a slot between these.
  • the first and second stator arm elements have a cross section curve.
  • the first and the second stator arm elements exhibit greater thickness in their respective front regions than in their respective back regions.
  • a stator device for an axial flow fan having one end axially rear as well as one end axially front, the rear end, in use, being disposed further from the fan and the front end being closer to the fan, the stator comprising a plurality of first elements of stator arm, a plurality of second elements of stator arm, and a plurality of third elements of stator arms, the first arms of stator being arranged axially behind the second stator arm elements and the third stator arm elements being arranged axially in front of the second stator arm elements, slots being thereby defined so much between the first and the second than between the second and the third stator arm elements.
  • an outer ring 1 of a fan support device has an inner peripheral wall 2 which defines an opening 3 for an air flow coming from a fan axial flow (see Figure 2).
  • the support ring 1 can be part of a fan nozzle or can be a separate structure attached to a nozzle. Rings of supports of this type are well known in the art and are usually made of plastic molded.
  • the support ring is generally circular.
  • a fan motor support ring 5 is found inside the ring.
  • the support ring of fan motor is attached to the support ring exterior 1 via a plurality (7 here) spacers 6 which fulfill the function additional to form stator arm elements used to straighten the air flow from the fan.
  • the air flow is further rectified by rectifying elements of the air flow 8 interposed between the arm elements of stator 6.
  • rectifying elements are good known in the art.
  • the fan motor support ring 5 is represented as C-shaped, but it could form a complete circle. It is used to hire and supporting a fan motor (not shown) on the shaft from which the hub of a fan is fixed - see Figure 2.
  • a fan 100 consists of a hub portion generally circular 110 having an outer wall on which is fixed a plurality of blades 120. Counter-clockwise rotation of the hub (shown by arrow B) forces the air to move in the general direction indicated by arrow A. However, the movement of the fan blades causes the air and also forces him to adopt a movement going generally counterclockwise.
  • a stator 50 is made up of a plurality of stator arm elements 10.11.
  • each of the stator arm elements 10, 11 is generally of curved cross-section and that each of the stator arm elements 10, 11 tapers to from a respective front edge region 13, 14 to a respective axially rear edge region 15, 16.
  • the first stator arm element 10 is arranged axially behind the second element of stator arm 11 so that the edge region front 13 of the first stator arm element defines a slot in cooperation with the axially rear edge of the second stator element 11.
  • the slot has a substantial circumferential extent B, but, as this is shown to have little or no axial extent C.
  • each pair of stator arm elements 10.11 forms a substantial lift plan configuration
  • the slots 12, which are located near the edge of leak (in the last 50% of the rope length of the stator) create a space in the cross section of the lift plan so as to inject some air flow from the pressure side D of the stator to the suction side E.
  • the slot could have a width of at most 20% of the length of the rope.
  • the overall direction of the slot should form an angle between 0 and 90 ° relative to the inclination profile section local.
  • the total effect of injecting an air flow at from the pressure side to the suction side is to reduce drag by preventing flow to separate too soon from the profiled surface. This therefore allows a more pronounced curvature, and therefore a better re-direction of the air flow. Energy kinetics of the rotating fan acting on the air that is moved by the fan is so more efficiently transformed into static pressure.
  • FIG. 5 a second variant of the stator is shown, in which three stator arm elements 21,22,23 are provided for each stator arm.
  • Each of the elements of stator arm defines a respective slot 24, 25 with the element which precedes it axially in order to create an effect similar to that shown in Figure 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP99124390A 1998-12-07 1999-12-07 Lüfterstator Withdrawn EP1008761A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US206623 1998-12-07
US09/206,623 US6206635B1 (en) 1998-12-07 1998-12-07 Fan stator

Publications (2)

Publication Number Publication Date
EP1008761A2 true EP1008761A2 (de) 2000-06-14
EP1008761A3 EP1008761A3 (de) 2001-01-31

Family

ID=22767209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124390A Withdrawn EP1008761A3 (de) 1998-12-07 1999-12-07 Lüfterstator

Country Status (2)

Country Link
US (1) US6206635B1 (de)
EP (1) EP1008761A3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12612919B2 (en) * 2022-09-16 2026-04-28 Asia Vital Components (China) Co., Ltd. Fan frame electrical connection structure

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4697501B2 (ja) * 2000-07-25 2011-06-08 ミネベア株式会社 整流翼
US6896095B2 (en) 2002-03-26 2005-05-24 Ford Motor Company Fan shroud with built in noise reduction
TW546443B (en) * 2002-09-27 2003-08-11 Delta Electronics Inc Axial flow fan with a plurality of segment blades
US6827547B2 (en) 2003-01-29 2004-12-07 Borgwarner Inc. Engine cooling fan having improved airflow characteristics
US20040150632A1 (en) * 2003-01-31 2004-08-05 Clapper Edward O. Ballpoint stylus
TWM246685U (en) * 2003-09-17 2004-10-11 Hon Hai Prec Ind Co Ltd Heat sink assembly
US20060093476A1 (en) * 2004-10-29 2006-05-04 Stanley Gavin D Fan stator
TWI298092B (en) * 2005-08-12 2008-06-21 Delta Electronics Inc Fan and blade thereof
TWI280324B (en) * 2005-12-23 2007-05-01 Delta Electronics Inc Fan and fan housing thereof
CN101571147B (zh) * 2008-04-28 2012-07-25 富准精密工业(深圳)有限公司 散热风扇
US8591170B1 (en) * 2010-05-26 2013-11-26 James D. Rawls Directed force turbine device
DE102010053798A1 (de) * 2010-12-08 2012-06-14 Rolls-Royce Deutschland Ltd & Co Kg Strömungsmaschine - Schaufel mit hybrider Profilgestaltung
US10309236B2 (en) * 2013-03-14 2019-06-04 Rolls-Royce Corporation Subsonic shock strut
ITMI20130791A1 (it) * 2013-05-14 2014-11-15 Cofimco Srl Ventilatore assiale
USD805107S1 (en) 2016-12-02 2017-12-12 U.S. Farathane Corporation Engine fan shroud
FR3081383B1 (fr) * 2018-05-22 2023-10-20 Valeo Systemes Thermiques Dispositif de ventilation d’un vehicule automobile
IT201900004059A1 (it) * 2019-03-20 2020-09-20 R E M Holding S R L Pala con flap
FR3108147B1 (fr) * 2020-03-13 2022-02-25 Valeo Systemes Thermiques Bras de maintien pour armature de support

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE573799C (de) * 1930-12-05 1933-04-05 Johanna Langhans Geb Ulrich Beschaufelung fuer Gas- und Dampfturbinen
US2313413A (en) * 1940-07-02 1943-03-09 John R Weske Axial flow fan
FR982027A (fr) * 1943-06-01 1951-06-04 Perfectionnement aux compresseurs axiaux
US3173604A (en) * 1962-02-15 1965-03-16 Gen Dynamics Corp Mixed flow turbo machine
FR1346934A (fr) * 1963-02-14 1963-12-20 Gen Dynamics Corp Turbo-machine à écoulement mixte
FR2083742A5 (de) * 1970-03-23 1971-12-17 Cit Alcatel
US4548548A (en) * 1984-05-23 1985-10-22 Airflow Research And Manufacturing Corp. Fan and housing
US4946348A (en) * 1989-02-14 1990-08-07 Airflow Research & Manufacturing Corporation Centrifugal fan with airfoil vanes in annular volute envelope
US5342167A (en) * 1992-10-09 1994-08-30 Airflow Research And Manufacturing Corporation Low noise fan

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12612919B2 (en) * 2022-09-16 2026-04-28 Asia Vital Components (China) Co., Ltd. Fan frame electrical connection structure

Also Published As

Publication number Publication date
US6206635B1 (en) 2001-03-27
EP1008761A3 (de) 2001-01-31

Similar Documents

Publication Publication Date Title
EP1008761A2 (de) Lüfterstator
EP0543694B1 (de) Lüfterzarge und Anwendung in einem Kraftfahrzeugmotorkühler
FR2965314A1 (fr) Helice pour ventilateur dont la longueur de corde varie
WO2012041564A1 (fr) Hélice pour ventilateur dont l'angle de calage varie
EP1996818B1 (de) Lüfterpropeller, insbesondere für kraftfahrzeuge
WO2015162389A1 (fr) Aube pour turbine de turbomachine comprenant un circuit de refroidissement à homogénéité améliorée
FR2836186A1 (fr) Ventilateur a flux axial
FR3073580A1 (fr) Systeme de mise en mouvement d’air
FR2628154A1 (fr) Stator de ventilateur
FR2673248A1 (fr) Ventilateur axial, notamment pour vehicule automobile.
FR2669687A1 (fr) Compresseur a flux axial.
EP2839165B1 (de) Kraftfahrzeuggebläse mit reduzierter achsengrösse
EP3271588B1 (de) Aerodynamisch und akustisch verbesserter fahrzeuglüfter
FR2498838A1 (fr) Procede de refroidissement d'un moteur a rotor exterieur et moteur a rotor exterieur refroidi par le procede en question
EP1813820B1 (de) Kraftfahrzeuglüfter und mit diesem versehen Kraftfahrzeugfrontteil
FR2724205A1 (fr) Ventilateur destine au systeme de refroidissement d'un vehicule automobile
FR2841705A1 (fr) Systeme de ventilation interne d'une machine electrique tournante telle qu'un alternateur notamment de vehicule automobile
FR3064540B1 (fr) Support pour dispositif de ventilation, dispositif de ventilation et module de refroidissement correspondants
EP0771060B1 (de) Mit verbesserter, interner Lüftungsvorrichtung versehene Lichtmaschine
FR2859251A1 (fr) Pulseur a haut rendement aeraulique pour appareil de ventilation, de chauffage et/ou de climatisation d'habitacle de vehicule automobile
FR2811156A1 (fr) Ventilateur pour machine electrique tournante, notamment pour alternateur de vehicule automobile
WO2017187093A1 (fr) Ensemble de redressement de flux d'air et turbomachine comprenant un tel ensemble
FR2780572A1 (fr) Alternateur pour vehicule avec circuit de refroidissement du carter par liquide
FR3101116A1 (fr) ventilateur de rotor amélioré
FR3077344A1 (fr) Helice de ventilateur pour vehicule automobile

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010516

AKX Designation fees paid

Free format text: DE FR IT

17Q First examination report despatched

Effective date: 20040204

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040615