EP0350408A2 - Sauganlage für Küchenabzugshauben, Luftreiniger und Abzugshaube mit dieser Anlage - Google Patents

Sauganlage für Küchenabzugshauben, Luftreiniger und Abzugshaube mit dieser Anlage Download PDF

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Publication number
EP0350408A2
EP0350408A2 EP89401960A EP89401960A EP0350408A2 EP 0350408 A2 EP0350408 A2 EP 0350408A2 EP 89401960 A EP89401960 A EP 89401960A EP 89401960 A EP89401960 A EP 89401960A EP 0350408 A2 EP0350408 A2 EP 0350408A2
Authority
EP
European Patent Office
Prior art keywords
disc
fins
suction device
leading edge
gas flow
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Withdrawn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
EP89401960A
Other languages
English (en)
French (fr)
Other versions
EP0350408A3 (de
Inventor
Georges Lazard
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.)
INVESTISSEMENT ET D' INNOVATION INDUSTRIELS Ste
Original Assignee
INVESTISSEMENT ET D' INNOVATION INDUSTRIELS Ste
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 INVESTISSEMENT ET D' INNOVATION INDUSTRIELS Ste filed Critical INVESTISSEMENT ET D' INNOVATION INDUSTRIELS Ste
Publication of EP0350408A2 publication Critical patent/EP0350408A2/de
Publication of EP0350408A3 publication Critical patent/EP0350408A3/de
Withdrawn legal-status Critical Current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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/167—Operating by means of fibrous or porous elements, e.g. with sponge rotors

Definitions

  • the present invention relates to a suction device for a kitchen hood, air purifier and the like.
  • the hoods include a suction device in the form of a suction fan or turbine, driven by a motor and arranged to produce a vacuum allowing the gas to be drawn upwards by a gas stream.
  • cooking fumes which are caused to pass through a system of filters, comprising in particular an anti-grease filter and in the case of a so-called recycling hood a filter fixing odors in particular with activated carbon, the whole disposed in the hood upstream of the suction device.
  • the current suction devices have a significant size in height, so that the hoods provided with these suction devices are generally of a significant height and occupy in a kitchen a space which could be usefully used for other purposes, in particular for storage.
  • the present invention proposes to provide a suction device for kitchen hoods and the like having a high suction power and a particularly reduced overall height.
  • the device according to the invention is essentially characterized by the fact that it consists of a rigid flat disc, made of a material impermeable to the gas flow, driven in rotation about its central axis by a motor means, said disc comprising on its front face facing the gas flow sucking a plurality of projecting elements arranged to form channels directing the gas flow sucked towards the periphery of said disc.
  • the projecting elements are constituted by pairs of fins in the form of profiled blades fixed on the front face of said disc, perpendicular to the latter, each of the fins having a profile narrowing from an edge of thicker attack to a thinner trailing edge, the upper surface of each fin at its leading edge being substantially perpendicular to the radius of the disc passing through said leading edge, the fins of the same pair being arranged so as to form therebetween a channel in the shape of a converging trump towards the periphery of the disc.
  • the fins of the same pair are angularly spaced, the leading edge of the inner fin of each pair, that is to say of the fin closest to the center of the disc being located forward. from the leading edge of the outer fin in the direction of rotation of said disc.
  • the gas flow is thus channeled at the level of each pair of fins along the underside wall of the inner fin, between the underside wall of the inner fin and of the extrados of the outer fin in the trunk-shaped channel formed between said fins and then along the underside wall of the outer fin to the periphery of the disc.
  • the end of the trailing edge of the outer fin is arranged in the vicinity of the periphery of the disc.
  • the maximum height of the suction device corresponds to the height of the fins added to the thickness of the disc and to the height of the part of the motor protruding from the rear face of the disc. In practice, this cumulative height can be kept less than 5 cm, thus making it possible to produce an extra flat hood.
  • the hood produced according to the invention comprises, for housing the suction device, a housing, preferably of parallelepiped shape, the cross section of which is slightly greater than the surface of the disc, fitted on its front face upstream of the suction device with a filter system, in particular in the form of a sheet of activated carbon filter material.
  • the parallelepiped housing can advantageously comprise around the disc a set of cavities intended to reduce the operating noise of the hood resulting from the rotation of the disc.
  • the cavities can be arranged to be acoustically in phase opposition.
  • the motor used in the suction device according to the invention can be of any suitable type having small dimensions, and in particular a direct current motor capable of being housed in a recess formed in the center of the disc.
  • the suction device comprises in this embodiment a flat disc 1, metallic or made of rigid plastic, the cross section of which corresponds substantially to the cross section of a cooking surface.
  • On the front face of this disc 1 are mounted three pairs of wings in the form of profiled vanes 2,3 and respectively 2, 3a and 2b, 3b.
  • the fins 2 and 3 each have the shape of a profiled blade with a leading edge for each fin 4 and respectively 5 thicker than a trailing edge 6 and respectively 7.
  • the fins are arranged projecting from the corresponding face of the disc in such a way that their upper surface walls 8 and respectively 9 and their lower surface walls 10 and respectively 11 are perpendicular to the surface of the disc.
  • the fins 2 and 3 can be made in one piece with the disc 1 or attached to it while being fixed, for example at their leading edge.
  • the fins 2 and 3 are mounted on the disc so that their upper surface walls 8, 9 at their leading edges 4 and respectively 5 are substantially perpendicular to the radii R1 and respectively R2 of the disc passing through these leading edges.
  • leading edge 5 of the inner fin 3 is disposed in front of the leading edge 4 of the outer fin 2 in the direction of rotation of the disc materialized by the arrow F.
  • this angular offset is approximately half the angular distance between the end of the leading edge of a fin and the end of its trailing edge.
  • the motor according to the invention is in particular a DC motor of small dimensions, in particular of the type comprising a disc-shaped rotor in which are housed induction coils wound flat and embedded in the resin.
  • the motor is supplied from the electrical network by a transformer (not shown).
  • depression values of 60 mm of water column were obtained which were considerably higher than the values traditionally obtained with conventional suction devices for hoods. of kitchens.
  • the total height of the device allows it to be housed in a parallelepipedic box 15 having a total height of less than 5 cm in order to produce an integrated hood.
  • a sheet of filtering material is arranged in a manner known per se in the casing constituting the hood upstream of the front face of the disc provided with fins so as to retain the residues, in particular the fatty cooking residues contained in the fumes which are sucked in. through a front opening of the housing 16.
  • the purified fumes are discharged through openings 17 formed in the side faces of the housing.
  • the hood produced according to the invention can be, conventionally, fixedly mounted above a cooking surface, the disc being arranged horizontally (FIG. 3). Given its particularly reduced overall height, the hood according to the invention can also be integrated in the pivoting cover of a cooker or a hob ( Figure 4) or even be arranged horizontally under the hob, the fumes from cooking then being channeled from above the hob to the front of the suction device.
  • suction device is not limited to use in kitchen hoods but can also be used for example in laboratory extractor hoods and more generally by the extraction by suction of generated fumes especially by combustion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP89401960A 1988-07-07 1989-07-07 Sauganlage für Küchenabzugshauben, Luftreiniger und Abzugshaube mit dieser Anlage Withdrawn EP0350408A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8809253A FR2633983A1 (fr) 1988-07-07 1988-07-07 Dispositif d'aspiration pour hotte de cuisine, epurateur d'air et analogues, et hotte comportant un tel dispositif
FR8809253 1988-07-07

Publications (2)

Publication Number Publication Date
EP0350408A2 true EP0350408A2 (de) 1990-01-10
EP0350408A3 EP0350408A3 (de) 1990-03-28

Family

ID=9368208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401960A Withdrawn EP0350408A3 (de) 1988-07-07 1989-07-07 Sauganlage für Küchenabzugshauben, Luftreiniger und Abzugshaube mit dieser Anlage

Country Status (3)

Country Link
US (1) US4936288A (de)
EP (1) EP0350408A3 (de)
FR (1) FR2633983A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6139273A (en) * 1998-04-22 2000-10-31 Valeo Climate Control, Inc. Radial flow fan
GB2412679B (en) * 2002-11-12 2005-12-21 Vetco Gray Inc Orientation system for a subsea well
US8002881B2 (en) * 2005-03-16 2011-08-23 Oy Halton Group Ltd. Fume treatment method and apparatus using ultraviolet light to degrade contaminants
US20080302352A1 (en) * 2007-06-05 2008-12-11 Pearce Richard A Exhaust Hood and Method of Mounting Same
CN101463831B (zh) * 2007-12-19 2011-07-27 富准精密工业(深圳)有限公司 散热风扇及其风扇扇叶
US20150030506A1 (en) * 2012-09-14 2015-01-29 Kompass Technology Co., Ltd. Embedded multifunctional air purifier used in kitchen
JP6399406B2 (ja) * 2015-06-25 2018-10-03 秀實 栗田 発電装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1633609A (en) * 1920-10-29 1927-06-28 Westinghouse Electric & Mfg Co Radial-flow pump
US2138814A (en) * 1937-03-15 1938-12-06 Kol Master Corp Blower fan impeller
DE1628196A1 (de) * 1966-02-01 1971-04-29 Abrisaria Ag Luftfoerdermaschine,insbesondere zur Belueftung von Schutzraeumen
FR2271423A1 (en) * 1973-11-30 1975-12-12 Liber Jean Claude Centrifugal pump or fan - has cellular impeller trapping fluid ejected from periphery
SU1038611A1 (ru) * 1980-04-19 1983-08-30 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного Энергетического Машиностроения Рабочее колесо центробежного вентил тора

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US985152A (en) * 1909-10-20 1911-02-28 Walter H Fieroe Power-wheel.
DE548474C (de) * 1930-08-30 1932-04-13 Siemens Schuckertwerke Akt Ges Geblaeserad
US4089328A (en) * 1976-11-02 1978-05-16 Futurumverken Ab Kitchen ventilator
JPS5724497A (en) * 1980-07-17 1982-02-09 Toshiba Corp Laminated blade wheel for blower

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1633609A (en) * 1920-10-29 1927-06-28 Westinghouse Electric & Mfg Co Radial-flow pump
US2138814A (en) * 1937-03-15 1938-12-06 Kol Master Corp Blower fan impeller
DE1628196A1 (de) * 1966-02-01 1971-04-29 Abrisaria Ag Luftfoerdermaschine,insbesondere zur Belueftung von Schutzraeumen
FR2271423A1 (en) * 1973-11-30 1975-12-12 Liber Jean Claude Centrifugal pump or fan - has cellular impeller trapping fluid ejected from periphery
SU1038611A1 (ru) * 1980-04-19 1983-08-30 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного Энергетического Машиностроения Рабочее колесо центробежного вентил тора

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, semaine 84/21, 4 juillet 1984, section P/Q, classe Q56, no. 84-133092/21, Derwent Publications Ltd, Londres, GB; & SU-A-1038 611 (ATOMIC POWER EQUIP.) 30-08-1983 *

Also Published As

Publication number Publication date
US4936288A (en) 1990-06-26
EP0350408A3 (de) 1990-03-28
FR2633983A1 (fr) 1990-01-12

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