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EP0143791B1 - Soufflante radiale - Google Patents

Soufflante radiale Download PDF

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Publication number
EP0143791B1
EP0143791B1 EP84901061A EP84901061A EP0143791B1 EP 0143791 B1 EP0143791 B1 EP 0143791B1 EP 84901061 A EP84901061 A EP 84901061A EP 84901061 A EP84901061 A EP 84901061A EP 0143791 B1 EP0143791 B1 EP 0143791B1
Authority
EP
European Patent Office
Prior art keywords
radial fan
fan according
curved portion
outlet
spiral
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
EP84901061A
Other languages
German (de)
English (en)
Other versions
EP0143791A1 (fr
Inventor
Jürgen Schilling
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.)
Vaillant BV
Original Assignee
Vaillant Austria GmbH
Cofrabel Nv
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
SCHONEWELLE BV
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 Vaillant Austria GmbH, Cofrabel Nv, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, SCHONEWELLE BV filed Critical Vaillant Austria GmbH
Priority to AT84901061T priority Critical patent/ATE33876T1/de
Publication of EP0143791A1 publication Critical patent/EP0143791A1/fr
Application granted granted Critical
Publication of EP0143791B1 publication Critical patent/EP0143791B1/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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues
    • 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 present invention relates to a radial fan according to the preamble of the main claim.
  • blower has become known by Bruno Eck “Ventilatoren”, Berlin 1972, Fig. 212. It is a matter of dividing the spiral housing in order to change quite disturbances due to secondary currents when the spiral housing extends radially.
  • the spiral is broken down into several sections by middle tongues.
  • the outlet cross section can also be subdivided by guide vanes.
  • the present invention has for its object to provide a radial fan which has a steeper characteristic curve compared to the prior art, so that the associated change in throughput is as small as possible with a certain pressure change in the conveyed medium.
  • the blower should preferably be used in an oil burner so that the reaction to air flow remains as small as possible in the event of pressure waves caused by ignition or pressure change in the connected chimney of the burner.
  • the solution lies in the characterizing features of the main claim.
  • the drawing shows the housing of a radial fan with the housing cover removed.
  • the housing 1 consists of a sheet metal part which has a base 2 and a removed cover 3, both of which are connected to one another via a side wall 4.
  • the side wall 4 forms a spiral 5, which extends from a beginning 6 to an end 7, the spiral increasing in its outer diameter from the beginning to the end.
  • the beginning and end of the spiral are connected to one another via an outlet connection 8 which forms a rectangle in its cross section.
  • a fan wheel 11 is arranged within the interior 9 of the spiral 5, the central axis of which is designated 10, the central axis of which is also the axis 10.
  • an inlet opening is provided which is circular and whose central axis is at a distance from the axis 10.
  • a nose 12 is arranged, which merges into a side wall 14 of the outlet connector 8 via a bend 13.
  • the other opposite wall 15 of the outlet nozzle connects directly to the end of the spiral.
  • the two walls 14 and 15 diverge in the direction of the outlet 16, so that the narrowest point lies at the beginning of the outlet.
  • the interior 17 of the outlet connector 8 thus represents the geometric figure of a wedge, since only two walls diverge, but the bottom and top walls do not.
  • the curvature 13 has a radius of approximately 10 mm, which has an upper limit of 20 mm and a lower limit of 5 mm. These sizes refer to a nominal fan diameter of approximately 133 mm.
  • the curvature 10 is directed so that it is concave to the interior 17.
  • the curvature extends over a central angle of 10 to 50 °, in particular 30 °.
  • the curvatures of the curvature and the nose behave approximately as 4 1, which means that the curvature of the nose pointing into the interior 17 or 9 is rounded off with approximately 2.5 mm.
  • the angle of the wedge at which the two sides 14 and 15 of the outlet nozzle diverge is between 5 and 20 ° and is preferably chosen to be 10 °.
  • the diverging sides are symmetrical about a central plane 18 of the outlet nozzle.
  • the housing 1 of the blower is preferably made of sheet metal. It is particularly expedient to structurally combine this radial fan, which is distinguished by a particularly good characteristic curve, with a burner to form a fan burner.

Landscapes

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

Abstract

Soufflante radiale avec un boîtier en forme de spirale, possédant une entrée et une sortie, l'entrée étant disposée latéralement par rapport au boîtier et son axe médian étant déplacé vis-à-vis de l'axe de la spirale, la sortie reliant le début de la spirale à la fin de la spirale et formant une tubulure, cette tubulure (18), conformément à la présente invention, s'accroissant dans la direction de l'écoulement de sortie (16).

Claims (8)

1. Ventilateur centrifuge avec un carter (1) en forme de spirale (5), comportant une entrée et une sortie (8), l'entrée étant disposés latéralement sur le carter dont l'axe (10) et l'axe central de l'entrés ne coïncident pas, et la sortie reliant le début (6) de la spirale à l'extrémité (7) de la spirale et formant une tubulure (8) s'élargissant dans le sens d'écoulement du fluids et religé su début (6) de la spirale (5) par un nez (12) pénétrant dans la section libre de la tubulure de sortie et reliée à la paroi (14) de la tubulure de sortie (8) par un arrondi (13) concave par rapport à l'intérieur de ladite tubulure, caractérisé par le fait que la tubulure (8) s'élargit ensuite en forme de coin symétrique par rapport à un plan central (18), et que les rayons de l'arrondi (13) et du nez (12) se trouvent dans un rapport d'environ 4 : 1.
2. Ventilateur centrifuge suivant la revendication 1, caractérisé par le fait que l'angle du coin se situe entre 5° et 20°.
3. Ventilatsur centrifuge suivant la revendication 2, caractérisé par le fait qus l'angle du coin s'élève à 10°.
4. Ventilateur centrifuge suivant la revendication 1, caractérisé par le fait que l'arrondi présente un rayon entre 5 et 20 mm.
5. Ventilateur centrifuge suivant la revendication 4, caractérisé par le fait que l'arrondi a un rayon de 10 mm.
6. Ventilateur centrifuge suivant l'une des revendications 1 ou 4, caractérisé par le fait que l'angle au centre de l'arrondi se situe entre 10° et 50°.
7. Ventilateur centrifuge suivant la revendication 6, caractérisé par le fait que l'angle au centre s'élève à 30°.
8. Ventilateur centrifuge suivant l'une quelconque des revendications 1 à 7, caractérisé par la combinaison constructive avec un brûleur à mazout pour former un brûleur à pulvérisation.
EP84901061A 1983-03-19 1984-03-09 Soufflante radiale Expired EP0143791B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84901061T ATE33876T1 (de) 1983-03-19 1984-03-09 Radialgeblaese.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8308535U 1983-03-19
DE19838308535U DE8308535U1 (de) 1983-03-19 1983-03-19 Radialgeblaese

Publications (2)

Publication Number Publication Date
EP0143791A1 EP0143791A1 (fr) 1985-06-12
EP0143791B1 true EP0143791B1 (fr) 1988-04-27

Family

ID=6751483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84901061A Expired EP0143791B1 (fr) 1983-03-19 1984-03-09 Soufflante radiale

Country Status (4)

Country Link
US (1) US4735551A (fr)
EP (1) EP0143791B1 (fr)
DE (2) DE8308535U1 (fr)
WO (1) WO1984003740A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2659795A (en) * 1994-05-25 1995-12-18 Tec Air, Inc. Blower housing
US5484259A (en) * 1994-06-13 1996-01-16 Emerson Electric Co. Low noise centrifugal blower
NL1008137C2 (nl) * 1998-01-27 1999-08-02 Zwaan Adrianus J Mechanische, op of in een muur te bevestigen geluiddempende ventilatie-unit.
US5943878A (en) * 1998-05-22 1999-08-31 American Standard Inc. Tangential fan scroll and discharged diffuser design
KR100337287B1 (ko) * 1999-07-28 2002-05-17 윤종용 원심 송풍기
KR100637337B1 (ko) * 2005-01-25 2006-10-20 선문대학교 산학협력단 원심 송풍기의 스크롤 케이싱
US8588701B2 (en) 2005-02-09 2013-11-19 Nokia Corporation Noise level communication for high speed uplink packet access
DE102009033776A1 (de) * 2009-07-17 2011-01-20 Behr Gmbh & Co. Kg Radiallüftergehäuse
DE102009050684A1 (de) * 2009-10-26 2011-04-28 Ebm-Papst Landshut Gmbh Radialgebläse
BE1022028B1 (nl) * 2013-04-05 2016-02-04 Atlas Copco Airpower, Naamloze Vennootschap Behuizing voor een ventilator van een spiraalcompressor
JP6763815B2 (ja) * 2017-03-31 2020-09-30 三菱重工コンプレッサ株式会社 遠心圧縮機及びターボ冷凍機
CN108626148B (zh) * 2018-04-10 2020-10-30 广东美的暖通设备有限公司 风机及屋顶机
US11480192B2 (en) 2019-01-04 2022-10-25 Johnson Controls Tyco IP Holdings LLP Cutoff for a blower housing

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1914919A (en) * 1931-10-30 1933-06-20 Allis Chalmers Mfg Co Centrifugal pump
US2322357A (en) * 1942-02-04 1943-06-22 B F Sturtevant Co Centrifugal fan
US2387348A (en) * 1943-09-03 1945-10-23 Torrington Mfg Co Centrifugal displacement apparatus
US2420401A (en) * 1945-06-08 1947-05-13 Ivan M Prokofieff Centrifugal pump
US2841326A (en) * 1954-06-14 1958-07-01 Trane Co Centrifugal fan
US3029744A (en) * 1957-03-08 1962-04-17 Mc Graw Edison Co Impeller housing
US2994348A (en) * 1957-09-11 1961-08-01 Dominion Bridge Co Ltd Method of reinforcing and welding toroidal or spiral shaped vessels
DE1077368B (de) * 1957-11-21 1960-03-10 Westerasmaskiner Ab Zentrifugalgeblaese von relativ zum Laufraddurchmesser grosser Breite
US3166394A (en) * 1961-04-12 1965-01-19 Arthur R Adams Self-dumping centrifugal separator
US3093299A (en) * 1961-05-15 1963-06-11 Trane Co Centrifugal fan
DE1503649A1 (de) * 1965-12-18 1969-02-06 Meissen Turbowerke Lueftertypenreihen nach dem Baukastensystem
US3380711A (en) * 1966-01-21 1968-04-30 Laval Turbine Combined separator and turbine
US3824028A (en) * 1968-11-07 1974-07-16 Punker Gmbh Radial blower, especially for oil burners
US3707335A (en) * 1971-01-25 1972-12-26 Whirlpool Co Water pump
DE2807273C2 (de) * 1978-02-21 1985-07-18 Robert Bosch Gmbh, 7000 Stuttgart Radialgebläse, insbesondere für Heizungen und Klimaanlagen in Kraftfahrzeugen
ZA791291B (en) * 1978-03-28 1980-03-26 Howden James & Co Ltd Fans or the like
FI64225C (fi) * 1979-11-29 1983-10-10 Sarlin Ab Oy E Centrifugalpump
US4512716A (en) * 1982-09-30 1985-04-23 Wallace Murray Corporation Vortex transition duct
JPS59131799A (ja) * 1983-12-19 1984-07-28 Hitachi Ltd 遠心形流体機械のケ−シング

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Bruno Eck: "Ventilatoren" Springer-Verlag, Berlin, 1972 Abb. 212 *

Also Published As

Publication number Publication date
DE8308535U1 (de) 1984-06-20
US4735551A (en) 1988-04-05
WO1984003740A1 (fr) 1984-09-27
DE3470777D1 (en) 1988-06-01
EP0143791A1 (fr) 1985-06-12

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