EP0132780A1 - Ventilateur tangentiel avec une augmentation de vitesse de fluide, près des parois du raccord de pression - Google Patents

Ventilateur tangentiel avec une augmentation de vitesse de fluide, près des parois du raccord de pression Download PDF

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Publication number
EP0132780A1
EP0132780A1 EP84108482A EP84108482A EP0132780A1 EP 0132780 A1 EP0132780 A1 EP 0132780A1 EP 84108482 A EP84108482 A EP 84108482A EP 84108482 A EP84108482 A EP 84108482A EP 0132780 A1 EP0132780 A1 EP 0132780A1
Authority
EP
European Patent Office
Prior art keywords
cross
flow fan
tab
fan according
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.)
Granted
Application number
EP84108482A
Other languages
German (de)
English (en)
Other versions
EP0132780B1 (fr
Inventor
Reinhold Hopfensperger
Dieter Schmidt
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.)
Alcatel Lucent Deutschland AG
International Standard Electric Corp
Original Assignee
Alcatel SEL AG
Standard Elektrik Lorenz AG
International Standard Electric Corp
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 Alcatel SEL AG, Standard Elektrik Lorenz AG, International Standard Electric Corp filed Critical Alcatel SEL AG
Publication of EP0132780A1 publication Critical patent/EP0132780A1/fr
Application granted granted Critical
Publication of EP0132780B1 publication Critical patent/EP0132780B1/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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • 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
    • F04D29/444—Bladed diffusers
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/914—Device to control boundary layer

Definitions

  • the invention relates to a cross-flow fan designed as a small or mini fan, consisting of a fan roller with blade edges running parallel to the axis of rotation, a spiral-shaped baffle plate, a one-part or multi-part surface, which transitions from the spiral shape in the area of the pressure chamber into a flat, curved or stepped surface Vortex formers and the sides of the fan rollers that completely or partially enclose the sides.
  • Cross-flow fans whose fan roller has a diameter of 40-60 mm, for example, are referred to as small or mini fans.
  • Such cross-flow fans are known as mass products and are used in large numbers, for example in household appliances, fan heaters, air conditioners, convectors, copiers, projectors, plug-in units for electrical and electronic devices and the like. The wide range of applications also shows that such fans have proven themselves in practice.
  • the invention is therefore based on the object to improve the known cross-flow fan in such a way that a new measure, either alone or in conjunction with others, improves the flow of the peripheral zones and at the same time either completely prevents the whistle of the cross-flow fan or at least strongly dampens it without additional noise occurs in other operating areas of the fan.
  • the cross-flow fan has a housing consisting of the side parts 1, the guide plate 2 and the vortex former 3, in which the fan roller 4 is rotatably mounted and is driven in the direction of the arrow 5 during operation.
  • side parts, guide plate and vortex form an approximately rectangular air outlet opening from which the air in the direction of the arrow 6 should be conveyed as evenly as possible.
  • the side parts are provided with the tabs 7 according to the invention.
  • the tabs 7 have been produced by punching them out on three sides from the side parts and, for example, by bending them inwards at right angles to the side to which they are still connected to the side part.
  • Such an embodiment of the invention has the additional advantage that with the help of the injector effect, a slight increase in the amount of air passed through is brought about. However, this effect only occurs if the opening 8 is below the tab.
  • FIG. 2 shows six different embodiments of the tab 7.
  • the tab according to FIG. 2a has a flat configuration.
  • the tabs according to FIGS. 2b and 2c have a kinked configuration, the kink either pointing upwards or downwards.
  • 2d and 2e show a curved shape of the tab, the Curvature can also be directed either upwards or downwards.
  • 2f shows a further embodiment of the tab, which can be provided in all embodiments, namely the rounding 9 on the end of the tab 7 facing the fan roller.
  • the tab 7 illustrates the position and arrangement of the tab 7 in the side part 1.
  • the length of the tab is denoted by x and the distance of the tab base from the guide plate by y.
  • the tab 7 can either be arranged at a right angle to the side part 1 or - as illustrated in FIG. 3 by the dashed layers - deviate from it by up to ⁇ 45 degrees.
  • Characteristic line 10 shows diagrams which show the maximum sound pressure level L max as a function of the operating inconvenience in the case of a cross-flow fan (characteristic line 10) and in the case of a cross-flow fan with the tabs 7 according to the invention (characteristic curve 11).
  • Characteristic line 11 shows that in the cross-flow fan according to the invention, in particular in free jet operation or small to medium throttling, the maximum sound pressure level is very much lower than the known cross-flow fan.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP84108482A 1983-07-23 1984-07-18 Ventilateur tangentiel avec une augmentation de vitesse de fluide, près des parois du raccord de pression Expired EP0132780B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833326650 DE3326650A1 (de) 1983-07-23 1983-07-23 Querstromluefter mit in den randzonen erhoehter luftaustrittsgeschwindigkeit
DE3326650 1983-07-23

Publications (2)

Publication Number Publication Date
EP0132780A1 true EP0132780A1 (fr) 1985-02-13
EP0132780B1 EP0132780B1 (fr) 1986-11-05

Family

ID=6204784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108482A Expired EP0132780B1 (fr) 1983-07-23 1984-07-18 Ventilateur tangentiel avec une augmentation de vitesse de fluide, près des parois du raccord de pression

Country Status (4)

Country Link
US (1) US4662818A (fr)
EP (1) EP0132780B1 (fr)
AU (1) AU3079784A (fr)
DE (2) DE3326650A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0915258A1 (fr) * 1997-11-10 1999-05-12 Carrier Corporation Ventilateur à courant transversal avec stabilisateur de courant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314300A (en) * 1992-01-13 1994-05-24 Fasco Industries, Inc. Noise control device for centrifugal blower
EP0999367B1 (fr) * 1998-11-06 2003-02-12 ALSTOM (Switzerland) Ltd Conduit d'écoulement à discontinuité de section transversale
US7604965B2 (en) * 2003-04-03 2009-10-20 Fluidigm Corporation Thermal reaction device and method for using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266016A1 (fr) * 1974-03-26 1975-10-24 Int Standard Electric Corp

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1787655A (en) * 1929-05-18 1931-01-06 American Blower Corp Apparatus and method of controlling fans
US2325221A (en) * 1936-12-28 1943-07-27 Walter H Bretzlaff Segregated pressure fan
US2333017A (en) * 1939-10-17 1943-10-26 Quadrex Corp Vacuum cleaner
US3002341A (en) * 1957-12-31 1961-10-03 Boeing Co Jet engine noise suppression nozzles
DE1503591A1 (de) * 1965-03-12 1970-04-09 Prometheus Elek Sche Geraete U Querstromgeblaese
US3832085A (en) * 1972-10-04 1974-08-27 Ford Motor Co Automotive fan shroud
US3770081A (en) * 1972-10-13 1973-11-06 Line Inc M Silencer for combustion engines
US3779341A (en) * 1972-10-16 1973-12-18 Modine Mfg Co Noise suppressive fan shroud
US4014625A (en) * 1973-08-20 1977-03-29 Teruo Yamamoto Transverse flow fan
DE2448362C2 (de) * 1974-10-10 1983-01-20 Standard Elektrik Lorenz Ag, 7000 Stuttgart Als Klein- oder Kleinstlüfter ausgebildeter Querstromlüfter mit in den endscheibennahen Randzonen erhöhter Luftaustrittsgeschwindigkeit
GB1551362A (en) * 1975-04-28 1979-08-30 Komatsu Mfg Co Ltd Radiator assembly
US4152094A (en) * 1975-10-31 1979-05-01 Hitachi, Ltd. Axial fan

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266016A1 (fr) * 1974-03-26 1975-10-24 Int Standard Electric Corp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0915258A1 (fr) * 1997-11-10 1999-05-12 Carrier Corporation Ventilateur à courant transversal avec stabilisateur de courant
US5944481A (en) * 1997-11-10 1999-08-31 Carrier Corporation Transverse fan with flow stabilizer
CN1092765C (zh) * 1997-11-10 2002-10-16 运载器有限公司 具有流动稳定器的横向风机

Also Published As

Publication number Publication date
EP0132780B1 (fr) 1986-11-05
US4662818A (en) 1987-05-05
AU3079784A (en) 1985-01-24
DE3461213D1 (en) 1986-12-11
DE3326650A1 (de) 1985-01-31

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