EP2966363A1 - Verbesserte filterhaube - Google Patents

Verbesserte filterhaube Download PDF

Info

Publication number
EP2966363A1
EP2966363A1 EP15171111.6A EP15171111A EP2966363A1 EP 2966363 A1 EP2966363 A1 EP 2966363A1 EP 15171111 A EP15171111 A EP 15171111A EP 2966363 A1 EP2966363 A1 EP 2966363A1
Authority
EP
European Patent Office
Prior art keywords
louvers
filtering
panel
louver
extractor
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
EP15171111.6A
Other languages
English (en)
French (fr)
Other versions
EP2966363B1 (de
Inventor
Gennaro Buonomo
Boris Jurko ek
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.)
Elica SpA
Gorenje dd
Original Assignee
Elica SpA
Gorenje dd
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 Elica SpA, Gorenje dd filed Critical Elica SpA
Priority to PL15171111T priority Critical patent/PL2966363T3/pl
Publication of EP2966363A1 publication Critical patent/EP2966363A1/de
Application granted granted Critical
Publication of EP2966363B1 publication Critical patent/EP2966363B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Definitions

  • the present invention relates to an improved filter hood as defined in the preamble of claim 1.
  • the present invention relates to a hood for extraction and filtration of gases from home kitchens.
  • hoods are traditionally known as extractor or filter hoods depending on whether they exhaust air outside of the room in which the hood is installed, using an appropriate extractor or an electrically powered motor fan unit, or recirculate air into the same room, once polluting substances have been filtered out.
  • hoods can accomplish either function according to the state assigned to a switch device, which can be selectively actuated by the user or installer of the hood.
  • hoods are normally equipped with grease filters and, if they are mounted in a filtering configuration, with activated carbon filters.
  • the former are specially designed to separate the liquid or solid particles suspended in the gases collected by the hood.
  • the latter filter polluting gases or fumes out of the collected gases.
  • these filters are usually arranged on the intake duct of the extractor. Also, they are mounted in series-arrangement for gases to be intercepted first by the grease filter and then by the activated carbon filter.
  • This uncontrolled fluid dynamics is unfavorable for a number of reasons including: generally reduced energy efficiency of the hood; high level of sound emissions during operation of the hood; uneven filtering conditions, which both affect filtration efficiency and cause irregular and uneven exhaustion of the activated carbons contained in the filter; low collection of fumes from the coolctop.
  • T-shaped hoods In such T-shaped hoods, the extractor is laterally displaced relative to the filters, due to the off-center position of the intake duct that accommodates the extractor.
  • US 6,235,090 discloses a hood having a filter and louvers overlapping the entire surface of the filter. These louvers are maintained in position by the passage of gases until the hood needs cleaning. Therefore, the louvers are movable, but their use generates turbulence and vortexes in gas flow, which are of great disturbance to the fluid-dynamic operation of the extractor. Due to this perturbation, certain parts of the working surface of the filter have to deal with a larger amount of gases, and other parts of the filter deal with a weaker gas flow.
  • the object of the present invention is to obviate the above drawbacks by providing a hood and a filtering panel for hoods, designed for improving the use of filters regardless of the extraction rate of the extractor.
  • the present invention provides a hood that can establish well-defined and controlled fluid-dynamic conditions in gases, to considerably improve all the characteristic functional performances of the hood.
  • the present invention also affords increased filtration efficiency, due to improved, even utilization of the filter surface.
  • the present invention ensures improved fume collection over the entire cooktop.
  • numeral 1 designates a filter hood for use in home kitchens, which comprises an extraction channel 2 extending in a direction of extension X-X and a collecting section 3.
  • the hood 1 comprises a filtering device 1A inserted in the collecting section 3.
  • the filtering device 1A comprises a filtering panel (briefly referred to hereinafter as filter) 5 and a support frame 4 in which it is inserted or contained, as is known in the art.
  • the filter 5 comprises a grid, or a grid and an activated carbon panel or, instead of the activated carbon panel, a polyurethane panel, the latter as defined by the features as set forth in PCT/EP2014/055334 .
  • the grid overlaps the activated carbon panel, or the polyurethane panel.
  • these elements are mounted in series-arrangement for gases to be intercepted first by the grease filter and then by the activated carbon filter, if any, or by the polyurethane panel.
  • the hood 1 comprises an extractor 6, having an electric motor 7, which is located within the extraction channel 2.
  • the hood 1 as shown in the figures has a configuration that is known by hood manufacturers as T-shaped configuration.
  • the suction port 8 of the extractor 6 is placed in front to a portion 5a of the filter 5 and its respective support frame 4, the remaining portion 5b of the panel being reached by the suction of the extractor 6 through a special channel arrangement 9.
  • the portion of the frame 4 that directly faces the inlet 8 of the extractor 6 comprises a plurality of louvers 10 having a mainly longitudinal extension, which overlap the portion 5a of the filter 5.
  • the support frame 4 for the filtering device 1A is designed as a quadrangle, and comprises two parallel and opposed pairs of sides 4A and 4B, with the plurality of louvers 10 extending across one pair of said sides.
  • the plurality of louvers 10 extend between the pair of sides 4B.
  • Each louver 10 of said plurality of louvers is mounted to freely pivot about its respective pivot (or rotation) axis Y-Y.
  • This axis Y-Y is preferably parallel to the longitudinal extent of the louver, between the opposed sides of the frame 4.
  • the axis Y-Y about which each louver 10 pivots is located near one of the longitudinal edges of the louver, the other edge being spaced from the former to such an extent as to interfere with the adjacent louver.
  • the louver 10 is free to pivot between a position in which it is substantially parallel to the surface of the portion 5a of the filter 5 that faces the suction port 8 ( Figures 3 and 4 ) and a position in which it is transverse to such surface, as schematically shown in Figures 5 and 6 .
  • the freely pivoting louvers 10 change their position in response to the suction generated by the extractor 6 and their inclined position is a function of the amount of such suction.
  • each louver 10 is transverse to the surface of the portion 5a of the filter 5 may range from 0° to 80°, preferably from 0° to 75°, which means that it may be from substantially parallel to substantially perpendicular to the surface of the portion 5a of the filter 5.
  • each louver 10 rotates from 0° to 80° about its axis Y-Y.
  • the portion 5a of the panel of filtering material will be substantially covered by the plurality of louvers 10, as schematically shown in Figure 3 , when the extractor 6 exerts no or very little suction and, as shown in Figure 5 , the same portion of the filtering panel will be increasingly exposed, as suction increases.
  • the plurality of louvers 10 when the plurality of louvers 10 are in the position in which they are substantially parallel to the surface of the portion 5a of the filtering panel facing the suction port 8 of the extractor 6, they cover from 30% to 75% of the area defined by the support frame 4.
  • each louver 10 comprises a pair 10A of pivots at the ends of its mainly longitudinal direction of extension, which engage the frame 4 in such a manner as to allow the louvers 10 to pivot relative the support frame 4 under the action of the extractor 6.
  • the extent S of the louvers 10 in the direction transverse to the axis Y-Y has a value that increases from the pivoting louver 10 located at the edge 5c of the portion 5a of the filtering panel facing the suction port 8 of the extractor.
  • louvers have the same extents S in the direction transverse to the axis Y-Y, as shown in Figure 8 .
  • each louver 10 has a NACA wing profile, preferably a NACA 4415 wing profile, with its concavity facing the surface of the portion 5a of the filtering panel that faces the suction port 8 of the extractor when each louver 10 is deemed to be substantially parallel to such surface.
  • damping devices 10B are disposed on the louvers (or on the axis Y-Y about which the louvers 10 are pivotally mounted) to limit any vibration events.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Ventilation (AREA)
EP15171111.6A 2014-07-08 2015-06-09 Filterhaube Active EP2966363B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15171111T PL2966363T3 (pl) 2014-07-08 2015-06-09 Okap filtrujący

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20141244 2014-07-08

Publications (2)

Publication Number Publication Date
EP2966363A1 true EP2966363A1 (de) 2016-01-13
EP2966363B1 EP2966363B1 (de) 2016-10-19

Family

ID=51494386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15171111.6A Active EP2966363B1 (de) 2014-07-08 2015-06-09 Filterhaube

Country Status (3)

Country Link
EP (1) EP2966363B1 (de)
DK (1) DK2966363T3 (de)
PL (1) PL2966363T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110486767A (zh) * 2019-08-26 2019-11-22 宁波方太厨具有限公司 一种导烟组件及应用有该导烟组件的吸油烟机
CN115178079A (zh) * 2022-07-13 2022-10-14 王春立 一种工业废气处理系统及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI25498A (sl) 2017-08-03 2019-02-28 Gorenje Gospodinjski Aparati D.D. Filtrirana naprava pri kuhinjski napi

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425334A (en) * 1967-05-03 1969-02-04 North American Rockwell Heat arresting grease extracting filter assembly
DE2518750A1 (de) * 1975-04-26 1976-11-04 Ego Regeltech Dunstabzugshaube ueber kochherden o.dgl.
US4690701A (en) * 1986-04-16 1987-09-01 Hedrick Steven E Reusable grease filter
US6235090B1 (en) 1998-12-29 2001-05-22 Gas Research Institute Kitchen hood filtration apparatus
EP1452804A1 (de) * 2003-02-17 2004-09-01 E.G.O. ELEKTRO-GERÄTEBAU GmbH Einrichtung zum Absaugen von Abluft eines Elektrowärmegeräts und Verfahren zum Betrieb derselben
WO2005078353A1 (en) * 2004-02-13 2005-08-25 Kls Venture Holding Limited Self cleaning filter assembly and circulation system
DE102005004479A1 (de) * 2005-01-31 2006-08-10 BSH Bosch und Siemens Hausgeräte GmbH Küchendunstabzugsvorrichtung
US20060250799A1 (en) * 2005-05-09 2006-11-09 Sinur Richard R Range hood apparatus and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425334A (en) * 1967-05-03 1969-02-04 North American Rockwell Heat arresting grease extracting filter assembly
DE2518750A1 (de) * 1975-04-26 1976-11-04 Ego Regeltech Dunstabzugshaube ueber kochherden o.dgl.
US4690701A (en) * 1986-04-16 1987-09-01 Hedrick Steven E Reusable grease filter
US6235090B1 (en) 1998-12-29 2001-05-22 Gas Research Institute Kitchen hood filtration apparatus
EP1452804A1 (de) * 2003-02-17 2004-09-01 E.G.O. ELEKTRO-GERÄTEBAU GmbH Einrichtung zum Absaugen von Abluft eines Elektrowärmegeräts und Verfahren zum Betrieb derselben
WO2005078353A1 (en) * 2004-02-13 2005-08-25 Kls Venture Holding Limited Self cleaning filter assembly and circulation system
DE102005004479A1 (de) * 2005-01-31 2006-08-10 BSH Bosch und Siemens Hausgeräte GmbH Küchendunstabzugsvorrichtung
US20060250799A1 (en) * 2005-05-09 2006-11-09 Sinur Richard R Range hood apparatus and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110486767A (zh) * 2019-08-26 2019-11-22 宁波方太厨具有限公司 一种导烟组件及应用有该导烟组件的吸油烟机
CN115178079A (zh) * 2022-07-13 2022-10-14 王春立 一种工业废气处理系统及方法

Also Published As

Publication number Publication date
DK2966363T3 (en) 2017-01-30
EP2966363B1 (de) 2016-10-19
PL2966363T3 (pl) 2017-07-31

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