EP0899463A1 - Roue à aubes - Google Patents

Roue à aubes Download PDF

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Publication number
EP0899463A1
EP0899463A1 EP98890218A EP98890218A EP0899463A1 EP 0899463 A1 EP0899463 A1 EP 0899463A1 EP 98890218 A EP98890218 A EP 98890218A EP 98890218 A EP98890218 A EP 98890218A EP 0899463 A1 EP0899463 A1 EP 0899463A1
Authority
EP
European Patent Office
Prior art keywords
base body
impeller
plate
partial
impeller according
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Withdrawn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
EP98890218A
Other languages
German (de)
English (en)
Inventor
Robert Ing. Pollmann
Stefan Dipl.-Ing. Bruckmüller
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.)
Ernst Pollmann Uhren- Uapparatebau oHG
Original Assignee
Ernst Pollmann Uhren- Uapparatebau oHG
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 Ernst Pollmann Uhren- Uapparatebau oHG filed Critical Ernst Pollmann Uhren- Uapparatebau oHG
Publication of EP0899463A1 publication Critical patent/EP0899463A1/fr
Withdrawn legal-status Critical Current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
    • F04D29/26—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
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F04D29/2233—Construction and assembly entirely open or stamped from one sheet

Definitions

  • the invention relates to an impeller consisting of a base body made of sheet metal transverse, preferably perpendicular, to the wheel axis extending side surfaces and from at least one of these side surfaces protruding, preferably curved Wings, the partial surfaces of this bent out of the base body Base body are formed and starting from this circumference of the base body in Extend in the direction of the wheel axle, with the sub-areas extending from the base body partial cuts preferably produced by stamping are separated, on the one hand, the circumference of the base body adjacent end with this and at the other, the Wheel axis adjacent end are connected to the base body.
  • Such impellers are used, for example, to convey liquid or gaseous substances, in particular in motor vehicles.
  • connection is made between the blades and the base body by welding, in particular Laser welding or hump pressure welding or soldering.
  • welding in particular Laser welding or hump pressure welding or soldering.
  • the present invention has for its object to provide an impeller, its manufacture is simple and inexpensive, with no reworking of the wings need to achieve the required accuracy of fit.
  • the invention proposes that the connection of the sub-areas with the base body Riveting or caulking takes place.
  • This riveting or caulking can be done within the framework the separation, in particular punching process and the bending process for the production of the wing-forming sub-areas, thus within the manufacturing cycle, with a so-called progressive composite cutting tool, that is, in a continuous Work process, which simplifies the manufacture considerably. Still is one ensures secure anchoring of the wings in the area of the wheel axle without the Quality of the impeller, especially with regard to its accuracy of fit, including suffers.
  • the invention also makes it possible to pass a hub of the base body out of it Form extrusion, i.e. by displacing and utilizing sheet metal volume to shape. This creates a hub whose effective bearing length is longer than that of a common drawing process in which the diameter of the pre-punched hole defines the bearing length, and a reliable press fit is guaranteed.
  • the base body can have a circular circumference Plate connected, which preferably from the partial surfaces forming the wings is permeated.
  • This plate is suitably made of plastic and can in this case be sprayed onto the base body and preferably surround it on all sides, whereby a simple and secure connection to the base body is guaranteed.
  • the plate can also be made as a separate part and then with the base body get connected.
  • Fig. 1 shows the basic body together with those forming the wings Partial surfaces, but these partial surfaces are still in the plane of the base body are located.
  • Fig. 2 shows the base body from the plane of the base body bent out, the wing-forming partial areas.
  • Fig. 3 shows a perspective view the impeller with a circular periphery connected to the base body having plate.
  • the impeller according to the invention consists of a base body 1, the one Has hub 2, the center of which forms the wheel axis 3.
  • the impeller according to the invention is first made from a sheet metal plate by a Stamping process of the base body 1 shown in FIG. 1 together with the partial surfaces 4 produced, these partial surfaces 4 are separated from the base body by partial cuts 5 and only in the peripheral areas 6 with the base body 1 related, as is typical for processing in the follow-up cutting process is. Then, in the same operation, by pressing or bending the partial surfaces 4 are bent out of the base body 1 and into the one shown in FIG. 2 Position deformed so that curved partial wings 4 are formed from these partial surfaces.
  • these blades are attached to their wheel axis 3 adjacent ends 7 with the base body 1 by riveting or caulking connected so that a secure connection of the wing to the base body 1 also these ends and the required dimensional stability is achieved as well unwanted vibrations can be prevented.
  • the hub 2 is in the follow through Extrusion manufactured.
  • the base body 1 after bending out Partial areas 4 on a polygonal circumference.
  • the base body 1 with a plate 8 made of plastic be connected, which is preferably sprayed onto the base body 1 and this on all sides can surround, the wing 4 forming part of the plate 8 penetrate.
  • the Plate 8 can also be made as a separate component and subsequently with the Basic body to be connected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP98890218A 1997-08-26 1998-07-28 Roue à aubes Withdrawn EP0899463A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT143997 1997-08-26
AT1439/97 1997-08-26

Publications (1)

Publication Number Publication Date
EP0899463A1 true EP0899463A1 (fr) 1999-03-03

Family

ID=3513919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98890218A Withdrawn EP0899463A1 (fr) 1997-08-26 1998-07-28 Roue à aubes

Country Status (1)

Country Link
EP (1) EP0899463A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014141944A (ja) * 2013-01-24 2014-08-07 Aisin Seiki Co Ltd 流体ポンプ用インペラ及びその製造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1469086A (en) * 1921-07-15 1923-09-25 Nelson H Henderson Centrifugal fan and method of making the same
CH296774A (de) * 1950-07-06 1954-02-28 Mauz & Pfeiffer Flügelrad für Gebläse.
DE1428035A1 (de) * 1964-01-30 1970-02-12 Ametek Inc Zentrifugalgeblaeserad eines Ventilators und Verfahren zu seiner Herstellung
DE2520416A1 (de) * 1975-05-07 1976-11-18 Bosch Siemens Hausgeraete Geblaeserad
GB2192432A (en) * 1986-07-07 1988-01-13 Leipzig Chemieanlagen Sheet-metal impeller for coolant pumps
EP0310121A2 (fr) 1987-09-30 1989-04-05 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Procédé de fabrication de dispositifs de refoulement et/ou de direction pour machines à écoulement et impulseur radial réalisé selon ce procédé, en particulier impulseur de fluide de refroidissement pour moteurs à combustion
EP0406788A2 (fr) * 1989-07-05 1991-01-09 NOWAX S.r.l. Roue ouverte, particulièrement pour pompe centrifuge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1469086A (en) * 1921-07-15 1923-09-25 Nelson H Henderson Centrifugal fan and method of making the same
CH296774A (de) * 1950-07-06 1954-02-28 Mauz & Pfeiffer Flügelrad für Gebläse.
DE1428035A1 (de) * 1964-01-30 1970-02-12 Ametek Inc Zentrifugalgeblaeserad eines Ventilators und Verfahren zu seiner Herstellung
DE2520416A1 (de) * 1975-05-07 1976-11-18 Bosch Siemens Hausgeraete Geblaeserad
GB2192432A (en) * 1986-07-07 1988-01-13 Leipzig Chemieanlagen Sheet-metal impeller for coolant pumps
EP0310121A2 (fr) 1987-09-30 1989-04-05 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Procédé de fabrication de dispositifs de refoulement et/ou de direction pour machines à écoulement et impulseur radial réalisé selon ce procédé, en particulier impulseur de fluide de refroidissement pour moteurs à combustion
EP0406788A2 (fr) * 1989-07-05 1991-01-09 NOWAX S.r.l. Roue ouverte, particulièrement pour pompe centrifuge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014141944A (ja) * 2013-01-24 2014-08-07 Aisin Seiki Co Ltd 流体ポンプ用インペラ及びその製造方法

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