EP0177723B1 - Ventilateur radial - Google Patents

Ventilateur radial Download PDF

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Publication number
EP0177723B1
EP0177723B1 EP85110471A EP85110471A EP0177723B1 EP 0177723 B1 EP0177723 B1 EP 0177723B1 EP 85110471 A EP85110471 A EP 85110471A EP 85110471 A EP85110471 A EP 85110471A EP 0177723 B1 EP0177723 B1 EP 0177723B1
Authority
EP
European Patent Office
Prior art keywords
air distribution
air
housing
distribution housing
radial fan
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
Application number
EP85110471A
Other languages
German (de)
English (en)
Other versions
EP0177723A1 (fr
Inventor
Lothar Dipl.-Ing. Thomzik
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0177723A1 publication Critical patent/EP0177723A1/fr
Application granted granted Critical
Publication of EP0177723B1 publication Critical patent/EP0177723B1/fr
Expired 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps

Definitions

  • the invention relates to a radial fan according to the preamble of claim 1 or claim 2; such a radial fan is generally known.
  • centrifugal fan which has air baffles running inside the volute surrounding the impeller in accordance with the logarithmic expansion of the volute; outside of the volute casing in the adjoining one, initially with a constant cross-section and then with a linearly expanding air distribution casing, the air baffles, if any, should be explicitly linear.
  • the object of the present invention is to be able to keep the pressure loss of a distribution housing adjoining a radial fan with a surrounding spiral housing, by means of which the air is to be brought into a specific blow-out direction, as low as possible with simple means.
  • Such systems are used e.g. Air or gas in drying, heating or cooling devices is specifically passed on, distributed or mixed.
  • the measure according to the invention enables the air particles emerging from the spiral housing surrounding the impeller of the radial fan to flow through the air distribution housing in a targeted direction with little avoidance of eddies and dead areas, the air distribution housing to achieve the simplest possible manufacturing and assembly technology Construction can be composed essentially of straight or at most circular arc-shaped wall parts;
  • the air baffles in the form of logarithmic spirals can be dispensed with in whole or in part if the shape of the air distribution housing itself essentially corresponds to a logarithmic spiral, which enables a flow with little loss and thus deflected by a few flow-preventing resistors.
  • an air distribution housing 3 connects to the outlet side of a spiral housing 2, which surrounds an impeller 1 of a radial fan, which is only indicated schematically.
  • the construction of the housing wall parts forming the air distribution housing 3 is characterized by the simplest possible manufacturing and assembly technology, in which the wall parts are assembled from only flat or at most circular sheet metal parts.
  • the air distribution housing 3 which is designed to be as simple as possible in terms of production and assembly technology, three air baffles 31, 32, 33 are arranged in logarithmic form such that the flow particles emerging from the outlet side of the spiral housing 2 surrounding the impeller 1 pass through the air baffles 31, 32, 33 formed guide device can flow in a targeted manner with as little loss as possible to the outlet side of the air distribution housing 3.
  • FIG. 2 shows a radial fan in which the air distribution housing 4 which adjoins the outlet side of the spiral housing 2 surrounding the impeller is itself in the form of a logarithmic spiral; This is achieved in that the walls 41, 42 run similarly to a logarithmic spiral as the air guide plates 31, 32, 33 in FIG. 1.
  • An air nozzle 43 with an outlet slot 44 is arranged on the outlet side of the air guide housing 4.

Landscapes

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

Claims (3)

1. Ventilateur radial avec une enveloppe spiralée entourant un rotor, au côté sortie duquel se raccorde un carter de répartition de l'air pourvu de tôles de guidage de l'air, caractérisé par le fait que les tôles de guidage de l'air (31, 32, 33) présentent une forme de spirale logarithmique, alors que le carter (3) de répartition de l'air est essentiellement constitué par l'assemblage d'éléments de parois plans et/ou, à la rigueur, de forme circulaire (figure 1).
2. Ventilateur radial avec une enveloppe spiralée entourant un rotor, au côté sortie duquel se raccorde un carter de répartition de l'air, caractérisé par le fait que le carter (4) de répartition de l'air est lui-même réalisé sous la forme d'une spirale logarithmique (figure 2).
3. Ventilateur selon la revendication 1 ou 2, caractérisé par le fait que du côté sortie du carter (3, 4) de répartition de l'air est prévue une tuyère à air (43) avec une fente de sortie (44).
EP85110471A 1984-09-04 1985-08-20 Ventilateur radial Expired EP0177723B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843432503 DE3432503A1 (de) 1984-09-04 1984-09-04 Radialventilator
DE3432503 1984-09-04

Publications (2)

Publication Number Publication Date
EP0177723A1 EP0177723A1 (fr) 1986-04-16
EP0177723B1 true EP0177723B1 (fr) 1988-03-09

Family

ID=6244620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110471A Expired EP0177723B1 (fr) 1984-09-04 1985-08-20 Ventilateur radial

Country Status (2)

Country Link
EP (1) EP0177723B1 (fr)
DE (2) DE3432503A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4891169A (en) * 1988-11-16 1990-01-02 Amsted Industries Inc. Transition duct for centrifugal fan
WO1990009524A1 (fr) * 1989-02-14 1990-08-23 Airflow Research & Manufacturing Corporation Ventilateur centrifuge et diffuseur a volute d'accumulation
DE4137703C1 (fr) * 1991-11-15 1992-12-10 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
GB2263502A (en) * 1992-01-17 1993-07-28 Parker Mark & Associates Limit Blower unit.
ES2109649T3 (es) * 1993-10-15 1998-01-16 Solipat Ag Dispositivo para el tratamiento termico de una banda de tejido conducida continuamente, especialmente una banda textil.
JP3061026B2 (ja) * 1997-12-18 2000-07-10 ダイキン工業株式会社 空気調和機の室内機
GB2558171A (en) * 2016-03-18 2018-07-11 Cummins Generator Technologies Adaptor with improved airflow

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1330547A (en) * 1919-08-29 1920-02-10 Mehlhaf William Fan
US2322357A (en) * 1942-02-04 1943-06-22 B F Sturtevant Co Centrifugal fan
US2770496A (en) * 1954-01-04 1956-11-13 Wilson Earl Automobile drier
US3322333A (en) * 1962-09-05 1967-05-30 Laing Vortex Inc Cross flow machine
US3251540A (en) * 1963-12-17 1966-05-17 Lau Blower Co Air moving device
DE3238913C2 (de) * 1982-10-21 1985-10-03 Werner Dr. 8972 Sonthofen Röhrs Radialventilatorgehäuse

Also Published As

Publication number Publication date
DE3432503A1 (de) 1986-03-13
EP0177723A1 (fr) 1986-04-16
DE3561836D1 (de) 1988-04-14

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