EP0609740B1 - Dunstabzugshaube für Küchen - Google Patents

Dunstabzugshaube für Küchen Download PDF

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Publication number
EP0609740B1
EP0609740B1 EP94100949A EP94100949A EP0609740B1 EP 0609740 B1 EP0609740 B1 EP 0609740B1 EP 94100949 A EP94100949 A EP 94100949A EP 94100949 A EP94100949 A EP 94100949A EP 0609740 B1 EP0609740 B1 EP 0609740B1
Authority
EP
European Patent Office
Prior art keywords
air
fact
deflector panel
hood
extraction hood
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 - Lifetime
Application number
EP94100949A
Other languages
English (en)
French (fr)
Other versions
EP0609740A1 (de
Inventor
Gabriele Centazzo
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.)
Valcucine SpA
Original Assignee
Valcucine SpA
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 Valcucine SpA filed Critical Valcucine SpA
Publication of EP0609740A1 publication Critical patent/EP0609740A1/de
Application granted granted Critical
Publication of EP0609740B1 publication Critical patent/EP0609740B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24C15/2028—Removing cooking fumes using an air curtain

Definitions

  • This invention relates to an extraction hood for kitchens.
  • kitchens any kitchen ensemble including kitchen units and cooking elements.
  • said extraction hoods also have forced suction means.
  • the patent US 4043319 of the 23.08.1977 describes a suction system and in particular a suction system with an exit into the atmosphere comprising a discharge duct with a double wall and a hood structure with a double wall, in which the space between the walls of the discharge duct and the hood is intended as a communication space.
  • a first blower is mounted on the external end of the discharge duct for ingesting the external air into the space between the walls, this ingested air, that goes downwards, is injected along the internal surfaces of the hood.
  • a second blower is mounted in the discharge duct to extract the combination of injected air and all the fumes collected in the said hood.
  • the patent US 4153044 of the 08.05.1979 describes an air ventilation duct and more particularly an air duct of the type with a tow profile backshelf, having side, upper and back walls mounted either on the floor or to a wall to form an enclosure system for a source of fumes and vapours.
  • the air under pressure not contaminated externally, is directed through the top of the air duct and towards the top front of the air duct, where it is directed, as a narrow curtain at high velocity, backwardly and downwardly through the enclosure towards an exhaust opening.
  • a filter is placed inside the opening and oriented at an angle in such a way that the high velocity air curtain engages the upper third part of the filter and is perpendicular to the filter.
  • the fumes that climb upwards pass through the exhaust opening along with the injected air; the exhaust fumes and air are extracted upwardly and externally through an exhaust channel within the hood enclosure ductwork, leading to the exhaust fan. Provision is also made for discharging combustion fumes that originate from gas-fired equipment.
  • the patent US 4127106 of the 28.11.1978 describes an air duct system and more particularly a system of an air duct to partially define an enclosure system in which two or more continuous air streams, moving rapidly in a non-parallel way, co-operate to draw minute air borne particles carried in the enclosure system, to recover the latter and to prevent the escape of the particles through an opening in the anterior part of the enclosure system.
  • the air that defines the continuous air streams can, fully or partly, be discharged into the atmosphere, substantially free from air borne particles, or can be subsequently recycled through the enclosure system.
  • the air duct assembly is especially suitable for spray painting rooms, but is useful and effective, in the same way, when the air borne particles are smoke or fumes.
  • the patent GB-A-2140913 discloses extractors for use with cooking appliances in which a blow duct takes in air from outside via the air supply pipe which is connected to a duct having an air blower, sending air downwards forming an air curtain around the heat-generating cooking appliance below.
  • the main drawbacks of this solution are the fact that for such an air curtain to be effective and to maintain the odours within the cooking area, it must have a very strong jet. However this strong jet not only annoys the operator, but also may give rise to head and neck ailments. For this reason, this patent has only a limited practical applicability.
  • the aim of the present invention is to obviate the above-mentioned drawbacks.
  • the patent US-A-3980072 discloses the use of pull down type radiant heat reflecting type panels in order to maintain or increase the temperature in the cooking area.
  • the new idea combines the air curtain disclosed in GB-A-2140913 with the pull down type radiant heat reflecting type panels disclosed in US-A-3980072, but modifies the scope and function of said pull down type radiant heat reflecting type panels.
  • an extraction hood for kitchens of the type comprising a forced suction means and a frontal air flux interspace, that allows a laminar air flow to extend downwards in front of the opening of the hood, characterised by the fact that:
  • said laminar air flow is produced by the same vacuum made inside the hood.
  • said laminar air flow is produced by the same vacuum made inside the hood, therefore solving in a simple and effective way the problem of diffusion of fumes and odours.
  • said laminar air flow is produced by a forcing ventilator which is separate from the suctioning one.
  • said deflection panel is transparent and in this way the cooking surface can be seen better and it remains better illuminated.
  • said deflection panel has at its lower end, an edge that curves outwardly.
  • said deflection wall is retractable.
  • the size of the opening of the hood can be varied depending on specific needs (raising the hood for intervention over the cooking surface, lowering it to prevent the diffusion of odours and fumes).
  • said deflection wall is positionable in the position desired.
  • said deflection wall is movable by means of a cable or chain, pulleys and a counterweight.
  • the fresh air introduced from the outside will be the recycled air that forms the laminar air wall and that, after having formed the wall, will be re-suctioned by the hood.
  • the hood will be the recycled air that forms the laminar air wall and that, after having formed the wall.
  • Figure 1 is a transversal vertical sectional view of the hood with a suction system and a laminar air flow produced by a vacuum.
  • Figure 1.1 is a transversal vertical sectional view of the hood with a suction system and a laminar air flow produced by forced ventilation.
  • Figure 2 represents a schematic view from the top of the hood.
  • Figure 3 represents in a schematic view an example of the hood installed above a cooking surface.
  • the hood may be supported by a cooking area b having a cooking surface p Fig. 3, or may be hung.
  • the hood has a generally prismatic form with a suction space 1 via a forced suction tube 3 with ventilator 31.
  • filtration means 4 may be installed.
  • the hood extends forwards with the tilted front 5 forming an air space 51 in upper communication with an air socket 2.
  • Said air socket 2 may also be endowed with a forcing ventilator 21 to force the airflow rather than having only the suction action from beneath 1.
  • Said deflector may be raised and lowered by means of a cable or chain 62 with pulleys 52-521 and balancing counterweight 63.
  • the laminar airflow "f” extends downwards and outwardly and then curves in the direction of the mouth of the hood "f1", favouring the suction of fumes and odours and preventing them from diffusing into the surrounding environment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Superstructure Of Vehicle (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Prevention Of Fouling (AREA)

Claims (8)

  1. Abzugshaube für Küchen, mit einem Zwangsansaugmittel (3,31) und einem frontalen Zwischenraum (51) für den Luftfluß, der einen lamellaren Luftfluß nach unte vor der Öffnung der Haube (f) gestattet, gekennzeichnet dadurch, daß:
    - besagter Zwischenraum für den Luftfluß (51) durch eine geneigte äußere Vorderfront (5) hergestellt wird;
    - hinter besagtem Zwischenraum für den Luftfluß (51) eine Ablenkplatte (6) gleitet, die unten ausziehbar ist und so die Vorderwand der Haube verschieden weit nach unten verlängert,
    - besagte Ablenkplatte (6) hinter dem Luftfluß bleibt, damit dieser abgelenkt wird und dem Umriß der Ablenkplatte (6) folgt.
  2. Abzugshaube nach Anspruch 1, gekennzeichnet dadurch, daß besagte Ablenkplatte (6) in einer getrennten Kammer (i) gleitet, die durch eine Trennwand (51-i) gebildet wird.
  3. Abzugshaube nach Anspruch 1, gekennzeichnet dadurch, daß der besagte lamellare Luftfluß (f-f1) durch das Vakuum in der Haube erzeugt wird.
  4. Abzugshaube nach Anspruch 1, gekennzeichnet dadurch, daß das Zwangsansaugmittel (3,31) einen Ansaugventilator (31) umfaßt und der besagte lamellaren Luftfluß (f-f1) durch einen Saugentlüfter (21) erzeugt wird, der von dem Ansaugventilator (31) getrennt ist.
  5. Abzugshaube nach Anspruch 1, gekennzeichnet dadurch, daß die besagte Ablenkplatte (6) transparent ist.
  6. Abzugshaube nach Anspruch 1, gekennzeichnet dadurch, daß die besagte Ablenkplatte (6) auf seinem Boden einen nach außen gebogenen Rand (61) aufweist.
  7. Abzugshaube nach Anspruch 1, gekennzeichnet dadurch, daß die besagte Ablenkplatte (6) bis zur völligen Versenkung einziehbar ist (62-52-521), beliebig plaziert werden kann und mittels eines Gegengewichts (63) beweglich ist.
  8. Abzugshaube nach Anspruch 1, gekennzeichnet dadurch, daß die besagte Ablenkplatte (6) einziehbar ist, beliebig plaziert werden kann und mittels eines Seils oder einer Kette (62), Riemenscheiben (52-521) und eines Gegengewichts (63) beweglich ist.
EP94100949A 1993-02-03 1994-01-24 Dunstabzugshaube für Küchen Expired - Lifetime EP0609740B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD930009 1993-02-03
ITUD930009A IT1262058B (it) 1993-02-03 1993-02-03 Cappa di aspirazione per cucine

Publications (2)

Publication Number Publication Date
EP0609740A1 EP0609740A1 (de) 1994-08-10
EP0609740B1 true EP0609740B1 (de) 1997-04-16

Family

ID=11421209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100949A Expired - Lifetime EP0609740B1 (de) 1993-02-03 1994-01-24 Dunstabzugshaube für Küchen

Country Status (4)

Country Link
EP (1) EP0609740B1 (de)
AT (1) ATE151856T1 (de)
DE (1) DE69402571T2 (de)
IT (1) IT1262058B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20020955U1 (de) * 2000-12-11 2001-02-08 Bsh Bosch Siemens Hausgeraete Wrasenleitschirm für eine Dunstabzugshaube
KR100608704B1 (ko) * 2004-12-20 2006-08-08 엘지전자 주식회사 주방용 후드의 월제트 배기장치
CA2649712C (en) 2006-04-18 2013-01-22 Oy Halton Group Ltd. Low flow exhaust system
DE102006060495A1 (de) * 2006-12-19 2008-06-26 Miele & Cie. Kg Dunstabzugshaube mit einem Kamingehäuse, an dem ein zweilagiger Wrasenschirm gehalten ist
ITTO20080686A1 (it) * 2008-09-19 2010-03-20 Sumysura S R L Cappa aspirante per cucine
CN102116500B (zh) * 2011-03-12 2012-05-16 梁雪华 一种自动闭合抽油烟机
CN108758753A (zh) * 2018-08-27 2018-11-06 深圳市中南科学院有限公司 一种多功能挡烟板
CN113757731A (zh) * 2021-09-26 2021-12-07 浙江优格实业有限公司 一种流体隔膜负离子集成灶

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980072A (en) * 1975-01-24 1976-09-14 Jacobs Eugene A Ventilating and cooling apparatus
DE2531862A1 (de) * 1975-07-17 1977-02-10 Karl Dipl Ing Schmitt Umluft-dunstabzugshaube
JPS59172930U (ja) * 1983-05-04 1984-11-19 日本調理機株式会社 エアカ−テン装置を装備したベンチレ−タ
US4788964A (en) * 1988-04-13 1988-12-06 Whirlpool Corporation Magnetically hinged smoke shield assembly for an over-the-range oven

Also Published As

Publication number Publication date
ITUD930009A1 (it) 1994-08-03
EP0609740A1 (de) 1994-08-10
IT1262058B (it) 1996-06-19
DE69402571T2 (de) 1997-11-13
DE69402571D1 (de) 1997-05-22
ATE151856T1 (de) 1997-05-15
ITUD930009A0 (it) 1993-02-03

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