EP0828082B1 - Roue ventilateur radial - Google Patents

Roue ventilateur radial Download PDF

Info

Publication number
EP0828082B1
EP0828082B1 EP97110008A EP97110008A EP0828082B1 EP 0828082 B1 EP0828082 B1 EP 0828082B1 EP 97110008 A EP97110008 A EP 97110008A EP 97110008 A EP97110008 A EP 97110008A EP 0828082 B1 EP0828082 B1 EP 0828082B1
Authority
EP
European Patent Office
Prior art keywords
blades
radial fan
groove
fan
blade
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
EP97110008A
Other languages
German (de)
English (en)
Other versions
EP0828082A1 (fr
Inventor
Ralf-Michael Schneider
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0828082A1 publication Critical patent/EP0828082A1/fr
Application granted granted Critical
Publication of EP0828082B1 publication Critical patent/EP0828082B1/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
    • F04D29/66—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
    • F04D29/662—Balancing of rotors
    • 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
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • 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 is based on a radial fan according to the Genus of the main claim.
  • a radial fan according to the Genus of the main claim.
  • the balancing elements are U-shaped designed with their opposite the U-base Leg side towards each other, at the ends mutually facing surfaces under tension pressed claws are formed.
  • the balancing clamps can only be shaped if the blade ends have a thickening, that prevent the clips from slipping.
  • the radial fan according to the invention with the features of The main claim has the advantage that the balancing elements can be shaped very easily, in particular without claws. Furthermore, these balancing elements can be independent of the Cross-sectional shape of the blade of the fan wheel attached become. The balancing elements then engage in the groove and are thus positively attached to the shovel, too when the blade tapers towards this end.
  • FIG. 1 shows a longitudinal section through a a fan wheel belonging to a radial fan along the line I-I in Figure 2
  • Figure 2 is a view in the direction of arrow II the fan wheel shown in Figure 1
  • Figure 3 a Partial section along the line III-III in Figure 1, by a Fan wheel blade provided with a balancing element, in enlarged view.
  • a fan wheel 10 shown in FIG Radial fan has a fan wheel hub 12 to which a fan wheel body 14 connects in the radial direction.
  • a fan wheel body 14 connects in the radial direction.
  • a ring of im arranged substantially radially extending blades 16 which are parallel in their longitudinal direction to the axis of rotation of the Fan wheel 10 extend so that there is a drum or roller-like fan wheel results.
  • the fan blades 16 extend from an outer end 18 to an inner one End 20, which is spaced from the fan wheel hub 12. This arrangement results in a wreath of Paddle wheels 16.
  • Balancing element 22 applied is a previously determined Compensate the unbalance of the fan wheel.
  • the balancing element 22 is essentially U-shaped formed and has a U-base 26 and two itself adjoining opposite U-legs 28. The free ends 30 of the U-legs 28 are against each other directed and press with a preload Surface of the blades 16. Different for compensation large imbalance is the width 38 ( Figure 1) Balancing elements 22 of different sizes, so that depending on Need a balancing element with the right mass can be provided.
  • the edge of the Blades introduced with spaced adjacent grooves 32 are the edge of the Blades introduced with spaced adjacent grooves 32 (FIG 3).
  • the grooves are not for clarity located.
  • the distance of the grooves 32 from the outer end of the Blade 16 corresponds approximately to the length of the U-leg 28, so that the leg ends 30 of the U-leg 28 in the Engage grooves 32.
  • the width of the grooves 32 is preferably greater than the thickness of the U-legs 28, so that Variations in the leg length of the U-legs 28 can be compensated.
  • the grooves 32 run ( Figure 1) parallel to those facing the axis of rotation of the fan wheel 10 Buckets 16.
  • a plurality of compensating elements 22 can thus be used can be attached at different height positions.
  • Figure 3 shows a groove in the direction of rotation leading surface 34 and the other groove 32 in the in Introduced surface 36 lagging direction of rotation.
  • the grooves 32 are directly opposite each other.
  • the balancing element 22 is in the direction of Longitudinal extension of the blades 16 - that is in the direction of Fan axis of rotation - attached to the blades.
  • the U-legs 28 of the balancing elements are somewhat pushed apart because of the original distance between the leg ends is smaller than the thickness of the Fan blades 16.
  • the made of a plastic or a Metal balancing elements 22 are thus with their Ends 30 biased on the surfaces facing away from each other of the grooves 32.
  • the balancing elements 22 by the Centrifugal force is pushed outwards so that it can with its U base 26 at the edges of the inner ends 20 of the Fan blades 16 get to the system. This will make one additional protection against being thrown off Balancing elements 22 during the operation of the radial fan superfluous. Since the leg ends 30 of the U-leg 28 in the grooves 32 engage, the balancing elements are also protected against stripping inside the fan wheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Testing Of Balance (AREA)
  • Massaging Devices (AREA)
  • Toys (AREA)

Claims (5)

  1. Ventilateur radial comprenant un rotor dont la couronne qui entoure l'axe de rotation présente des aubes essentiellement radiales et à une extrémité des aubes on peut fixer par pincement des éléments d'équilibrage en forme de pinces essentiellement en forme de U,
    caractérisé en ce que
    les aubes (16) ont au moins une rainure (32) dans laquelle pénètrent les éléments d'équilibrage (22).
  2. Ventilateur radial selon la revendication 1,
    caractérisé en ce que
    la rainure (32) est parallèle à l'arête de l'aube dont elle est voisine.
  3. Ventilateur radial selon la revendication 2,
    caractérisé en ce que
    l'arête de l'aube est tournée vers l'axe de rotation du rotor de ventilateur (10).
  4. Ventilateur radial selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    les aubes (16) ont deux rainures (32) parallèles.
  5. Ventilateur radial selon la revendication 4,
    caractérisé en ce qu'
    une rainure (32) est réalisée dans la surface de l'aube (34) en amont dans le sens de rotation et l'autre rainure (32) dans la surface de l'aube (36) en aval dans le sens de rotation.
EP97110008A 1996-08-30 1997-06-19 Roue ventilateur radial Expired - Lifetime EP0828082B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29615144U DE29615144U1 (de) 1996-08-30 1996-08-30 Radiallüfter
DE29615144U 1996-08-30

Publications (2)

Publication Number Publication Date
EP0828082A1 EP0828082A1 (fr) 1998-03-11
EP0828082B1 true EP0828082B1 (fr) 2002-10-09

Family

ID=8028590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110008A Expired - Lifetime EP0828082B1 (fr) 1996-08-30 1997-06-19 Roue ventilateur radial

Country Status (3)

Country Link
EP (1) EP0828082B1 (fr)
DE (2) DE29615144U1 (fr)
ES (1) ES2184926T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044484A1 (de) * 2000-09-08 2002-03-21 Bosch Gmbh Robert Gebläse
DE202005010000U1 (de) * 2005-06-23 2006-11-09 Ebm-Papst Mulfingen Gmbh & Co. Kg Rotor mit Lüfterrad für einen elektronisch kommutierten Elektromotor
DE102009002418A1 (de) * 2009-04-16 2010-10-21 Robert Bosch Gmbh Lüfterrad für ein Gebläsemodul

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027845A (en) * 1959-11-16 1962-04-03 Worthington Corp Impeller tip pocket
DE1628276A1 (de) * 1966-05-28 1971-02-04 Karl Heinkel Appbau Kg Verfahren zum Ankleben von Ausgleichsgewichten beim Auswuchten von Luefterraedern
FR2655400B1 (fr) * 1989-12-05 1992-04-03 Rapid Sa Masse d'equilibrage, en particulier pour ventilateur.
DE4143383C2 (de) * 1991-07-03 1995-03-30 Licentia Gmbh Axialgebläse, insbesondere zur Kühlung eines dem Kühler eines Fahrzeugs vorgeordneten Kondensators einer Klimaanlage
DE9303469U1 (de) * 1993-03-10 1994-07-14 Robert Bosch Gmbh, 70469 Stuttgart Radiallüfter

Also Published As

Publication number Publication date
ES2184926T3 (es) 2003-04-16
EP0828082A1 (fr) 1998-03-11
DE59708426D1 (de) 2002-11-14
DE29615144U1 (de) 1998-01-02

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