EP1369595B1 - Stator pour ventilateurs en particulier pour refroidisseurs d' air - Google Patents

Stator pour ventilateurs en particulier pour refroidisseurs d' air Download PDF

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Publication number
EP1369595B1
EP1369595B1 EP03008969A EP03008969A EP1369595B1 EP 1369595 B1 EP1369595 B1 EP 1369595B1 EP 03008969 A EP03008969 A EP 03008969A EP 03008969 A EP03008969 A EP 03008969A EP 1369595 B1 EP1369595 B1 EP 1369595B1
Authority
EP
European Patent Office
Prior art keywords
stator
vane
fans according
leg
vanes
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.)
Expired - Lifetime
Application number
EP03008969A
Other languages
German (de)
English (en)
Other versions
EP1369595A3 (fr
EP1369595A2 (fr
Inventor
Peter Nuspl
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.)
Hans Guentner GmbH
Original Assignee
Hans Guentner 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 Hans Guentner GmbH filed Critical Hans Guentner GmbH
Publication of EP1369595A2 publication Critical patent/EP1369595A2/fr
Publication of EP1369595A3 publication Critical patent/EP1369595A3/fr
Application granted granted Critical
Publication of EP1369595B1 publication Critical patent/EP1369595B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/40—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
    • 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
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/54—Building or constructing in particular ways by sheet metal manufacturing

Definitions

  • the invention relates to a stator for fans, in particular of Luftkühlem, the downstream of the fan impeller at a short distance has a radially aligned with the fan impeller, stationary vane ring, the blades are curved so that they focus emerging from the impeller air jet.
  • Such guide wheels are known in particular from (US-A-6309178) DE-GM 94 22 006, DE-GM 88 16 827, DE-GM 90 02 321 and EP 477 612.
  • the known guide wheels are one-piece, in particular made of plastic or metal structures, which are usually cast or pressed and thus associated with home specific fan or fan housing dimensions. In the case of damage to one or more wings or a desired throw changes in the passing air, they must be replaced as a whole. This requires a considerable cost.
  • the object of the invention is to develop a stator, which is made much cheaper and readily adaptable to changing flow conditions or air flow rate ratios.
  • each segment has at least one vane, which usually consists of a spatially bent sheet metal part.
  • each sheet metal part on two legs which include an obtuse angle, of which the first leg forms the vane and the second leg a Arm, which is connectable together with the arm of the adjacent other vanes to a wheel axis enclosing ring body.
  • the impeller 2 of the fan not shown in detail in Fig. 1 schematically indicated air cooler 15 is seated with its hub 1 on the axis of rotation 5 of the impeller driving electric motor 6.
  • a stationary vane ring 3 is arranged, of the fan impeller 2 a has small distance and axially aligned with the impeller and its blades 8, as shown in Figures 3-5 can be seen, are curved so that they bundle the emerging from the impeller air jets S.
  • a contact protection 4 in the form of a wire mesh fabric is arranged behind the vane ring 3, ie on its outlet side, which covers at least the blade channels to prevent reaching through and thus contact the rotating impeller 2.
  • the star-shaped vane ring 3 as can be seen in particular in FIG. 2, is composed of interconnected segments 7, as shown in FIGS. 3 and 4 can be seen, each of which segment has a guide blade 8, which consists of a spatially bent sheet metal part 9.
  • the sheet metal part 9 has two legs 10, 11, which enclose an obtuse angle ⁇ of 112.5 °, of which the first leg 10 forms the guide vane 8 and the second, angled leg 11 an arm 12, which together with the arm 12 of the adjacent other vanes 8 is connected to an impeller hub 1 enclosing annular body 13, as shown in FIG. 2.
  • the annular body shown by way of example consists of eight segments 7 of the type described, which are identical components.
  • the leg 8 of the sheet metal part 9 which forms the guide blade 8 forms in the assembled state of the guide blade rim 3 with the other sheet metal parts 9 a flat, vertical or nearly vertical surface 14 extending in the direction of air flow, as can be seen in FIG. 4, which is in the region of its lower edge 15 an angled portion 16, which gives the air flow entering the vane ring from the impeller 2 a desired twist, which determines the throw of the air jet.
  • This bend is visible in Fig. 4 at 16 and indicated in Fig. 3 as parallel to the peripheral edge 15 extending line. It has at the Leitradaußenit 17 a recut edge 18, which serves to receive a protective grid 4.
  • the second leg 11 of the sheet metal part 9 at its outer end a Befest Trentsabwinkelung 19, by means of which the individual segments 7 and their sheet metal parts 9 to the closed ring, which forms the vane ring, can be assembled.
  • the mutual attachment of the sheet metal parts 9 is then carried out by means provided in the legs 11 holes 20 which are congruent in the assembled state in the successive legs 11 of the vanes 8 and are penetrated by screws. Instead of screwing these legs and their Vemietung or welding is possible.
  • the Befest onlysabwinkelung 19 on the leg 11 includes, as shown in Fig. 4, with the remaining surface of the leg 11 an obtuse angle of 135 °, the size of which, however, depends on the number of interconnected to a closed ring sheet metal parts 9, in the present embodiment is eight.
  • the throw of the stator leaving air jet vary in that the deflection of the individual vanes 8 is changed from home by the bending angle, if the segments 7 are made of sheet metal, is changed for the bending.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (9)

  1. Diffuseur pour ventilateurs, en particulier pour refroidisseurs à air, qui comprend, en aval du rotor du ventilateur, à petite distance de celui-ci, une couronne à aubes directrices (3) stationnaire et axialement alignée avec le rotor de ventilateur (12), couronne dont les aubes sont coudées de manière à focaliser les jets d'air sortant du rotor (2), caractérisé en ce que la couronne à aubes directrices (3) est composée par des segments (7) reliés les uns aux autres et est donc variable.
  2. Diffuseur pour ventilateurs selon la revendication 1, caractérisé en ce que chaque segment (7) comprend au moins une aube directrice (8).
  3. Diffuseur pour ventilateurs selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que l'aube directrice (8) est constituée par une pièce en tôle (9) cintrée dans l'espace.
  4. Diffuseur pour ventilateurs selon la revendication 3, caractérisé en ce que la pièce en tôle (9) comprend deux branches (10, 11) qui définissent un angle obtus (α), dont la première branche (10) constitue l'aube directrice (8) et dont la seconde branche (11) constitue un bras (12) susceptible d'être relié au bras (12) des autres aubes directrices voisines (8) pour former un corps annulaire (13) entourant le moyeu de rotor (1).
  5. Diffuseur pour ventilateurs selon l'une des revendications 1 à 4, caractérisé en ce que, dans l'état assemblé de la couronne à aubes directrices (3) avec les autres pièces en tôle (9), la branche (10) constituant l'aube directrice (8) forme une surface (14) plane, verticale ou approximativement verticale qui s'étend dans la direction d'écoulement d'air et qui présente un coudage (16) contre l'axe de diffuseur dans la zone de son arête de bord inférieure (15) qui est tournée vers l'axe de diffuseur (5).
  6. Diffuseur pour ventilateurs selon l'une des revendications précédentes, caractérisé en ce que le coudage (16) de la surface de l'aube présente, à la périphérie extérieure (17) du diffuseur, une arête (18) en retrait qui sert à recevoir une grille protectrice (4).
  7. Diffuseur pour ventilateurs selon l'une des revendications précédentes, caractérisé en ce que la seconde branche (11) de la pièce en tôle (9) présente, à son extrémité extérieure, un coudage de fixation (19) sur lequel peut venir se fixer l'aube directrice suivante (8).
  8. Diffuseur pour ventilateurs selon l'une des revendications précédentes, caractérisé en ce que le coudage de fixation (19) définit, conjointement avec le reste de la surface de la seconde branche (11), un angle obtus dont la taille dépend du nombre des pièces en tôle (9) reliées entre elles pour former un anneau fermé.
  9. Diffuseur pour ventilateurs selon l'une des revendications précédentes, caractérisé en ce que les pièces en tôle individuelles (9) des aubes directrices (8) sont assemblées par vissage, rivetage ou soudage pour former la couronne à aubes directrices (3).
EP03008969A 2002-06-03 2003-04-17 Stator pour ventilateurs en particulier pour refroidisseurs d' air Expired - Lifetime EP1369595B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20208554U DE20208554U1 (de) 2002-06-03 2002-06-03 Leitrad für Ventilatoren, insbesondere von Luftkühlern
DE20208554U 2002-06-03

Publications (3)

Publication Number Publication Date
EP1369595A2 EP1369595A2 (fr) 2003-12-10
EP1369595A3 EP1369595A3 (fr) 2004-09-08
EP1369595B1 true EP1369595B1 (fr) 2006-07-12

Family

ID=29265481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03008969A Expired - Lifetime EP1369595B1 (fr) 2002-06-03 2003-04-17 Stator pour ventilateurs en particulier pour refroidisseurs d' air

Country Status (5)

Country Link
EP (1) EP1369595B1 (fr)
AT (1) ATE333051T1 (fr)
DE (2) DE20208554U1 (fr)
DK (1) DK1369595T3 (fr)
ES (1) ES2266675T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2989999B1 (fr) 2012-04-26 2016-01-01 Sdmo Ind Dispositif de refroidissement comprenant un ventilateur axial a redressement de flux centripete et groupe electrogene correspondant.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH225221A (de) * 1941-02-06 1943-01-15 Bmw Flugmotorenbau Gmbh Leitrad für Achsialverdichter oder Achsialturbinen.
GB631231A (en) * 1947-12-10 1949-10-28 Aerex Ltd Improvements relating to cased screw fans
GB792369A (en) * 1955-01-24 1958-03-26 Airscrew Company & Jicwood Ltd Improvements in axial flow fans
DE8816827U1 (de) 1988-08-04 1990-10-18 KÜBA Kühlerfabrik Heinrich W. Schmitz GmbH, 8021 Baierbrunn Luftkühler mit Leitgitter
DE9002321U1 (de) 1989-03-02 1990-05-03 Süd-Electric GmbH, 8011 Kirchseeon Ventilator
DE4030452A1 (de) 1990-09-26 1992-04-02 Schmitz Kuehler Baierbrunn Luftkuehler
DE9422006U1 (de) 1994-02-10 1997-07-31 Hans Güntner GmbH, 82256 Fürstenfeldbruck Schutzgittervorrichtung für Ventilatoren, insbesondere von Luftkühlern
US6309178B1 (en) * 1999-09-22 2001-10-30 Young S. Kim Downstream guiding device for fan-radiator cooling system

Also Published As

Publication number Publication date
ATE333051T1 (de) 2006-08-15
ES2266675T3 (es) 2007-03-01
EP1369595A3 (fr) 2004-09-08
DE20208554U1 (de) 2003-10-16
EP1369595A2 (fr) 2003-12-10
DE50304187D1 (de) 2006-08-24
DK1369595T3 (da) 2006-11-13

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