EP3564588A1 - Dispositif extracteur - Google Patents

Dispositif extracteur Download PDF

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Publication number
EP3564588A1
EP3564588A1 EP18000426.9A EP18000426A EP3564588A1 EP 3564588 A1 EP3564588 A1 EP 3564588A1 EP 18000426 A EP18000426 A EP 18000426A EP 3564588 A1 EP3564588 A1 EP 3564588A1
Authority
EP
European Patent Office
Prior art keywords
impeller
compartment
flow
aperture
housing
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.)
Ceased
Application number
EP18000426.9A
Other languages
German (de)
English (en)
Inventor
designation of the inventor has not yet been filed The
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.)
Berling Aero Ip Ug (haftungsbeschrankt)
Original Assignee
Berling Aero Ip Ug (haftungsbeschrankt)
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 Berling Aero Ip Ug (haftungsbeschrankt) filed Critical Berling Aero Ip Ug (haftungsbeschrankt)
Priority to EP18000426.9A priority Critical patent/EP3564588A1/fr
Publication of EP3564588A1 publication Critical patent/EP3564588A1/fr
Ceased 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
    • F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft

Definitions

  • the invention relates to a device, in particular to an extractor device for a cooktop.
  • the invention relates to the device and its use, to a stove, and to a kit and process for making a stove.
  • a cooktop (or hob) is a common device for food preparation.
  • the heating element in a cooktop can for example be electrical, gas or magneto-inductive.
  • Waste gas from cooking which can carry for example water, oils, and other organic constituents are a known problem. Waste gas can be produced for example by volatilisation and spitting, for instance from saucepans and frying pans. Waste gas can deposit constituents on cooktops or elsewhere, can disseminate odours, and can affect room humidity.
  • One approach to mitigating the effects of waste gases is an extractor hood which is located above the cooktop. In order to allow room for cooking, an extractor hood in necessarily rather remote from the cooktop.
  • It is an object to provide an improved kit for making a stove comprising a cooktop and an extraction means.
  • It is an object to provide a kit for making a stove comprising an extraction means which has a lower requirement for tools.
  • a cooktop preferably comprises one or more heating devices on a surface, the cooktop being adapted and arranged for cooking food.
  • Preferred heating devices are one or more selected from the list consisting of: resistive, inductive, radiative and chemical, preferably resistive, inductive and chemical.
  • a preferred radiative heating device is a microwave heater.
  • a preferred chemical heating device is a gas heater, preferably a gas ring.
  • a preferred resistive heating device is an electrically-resistive element, preferably an electric heater ring.
  • a preferred inductive heating device is a magnetic induction heater. Disclosure made in this document in relation to a cooktop also applies in relation to a hob and to a stovetop.
  • a stove as used in this document, is an apparatus which is adapted and arranged to produce heat, preferably for cooking food.
  • Preferred stoves comprise a cooktop.
  • Stoves may comprise an oven.
  • parallel can relate to two vectors, to one vector and one plane or to two planes.
  • a vector which is parallel to a plane is perpendicular to a vector normal to the plane.
  • Two planes are parallel if a normal vector to the first plane is parallel to a normal vector to the second plane.
  • Parallel vectors or planes preferably have a direction which differs by less than 30°, preferably less than 20°, more preferably less than 10°, most preferably less than 5°.
  • perpendicular can relate to two vectors, to one vector and one plane or to two planes.
  • a vector which is perpendicular to a plane is parallel to a vector normal to the plane.
  • Two planes are perpendicular if a normal vector to the first plane is perpendicular to a normal vector to the second plane.
  • Perpendicular vectors or planes preferably have a direction which differs by an angle in the range from 60° to 90°, preferably from 70° to 90°, more preferably from 80° to 90°, most preferably range from 85° to 90°.
  • a vector which is normal to a plane at a given point is perpendicular to all vectors in the plane at that point. If the plane is flat, the normal vector is perpendicular to all vectors in the plane.
  • the top and bottom sides of the housing define a vertical direction.
  • the term "vertical” preferably means parallel to this vertical direction.
  • the term horizontal preferably means perpendicular to this vertical direction.
  • the device of the invention is preferably adapted and arranged to produce a flow, preferably a flow entering the housing through the inlet and exiting the housing through the outlet.
  • a flow moves along a flow path.
  • Preferred flows are fluids, preferably gases.
  • Preferred flows comprise air.
  • Preferred flows are vapours or aerosols or mixtures of both.
  • Preferred flows comprise a material which is not gaseous at ambient temperature and pressure, preferably a liquid or a solid or both.
  • the flow comprises a gas and a liquid, the liquid preferably being either diffused or suspended in the gas.
  • the flow comprises a gas and a solid, the solid preferably being either diffused or suspended in the gas.
  • Preferred constituents of the flow are one or more selected from the group consisting of: air, H 2 O, an oil and an organic compound other than an oil.
  • H 2 O is preferably present either as a gas or as liquid droplets or both, preferably liquid droplets.
  • Oil is preferably present as liquid droplets or solid droplets or both, preferably liquid droplets.
  • Other organic compounds are preferably present as solid particles or liquid droplets.
  • Preferred oils are triglycerides. Some preferred oils in this context are cooking oils, preferably one or more selected from the group consisting of: almond oil, avocado oil, canola oil, coconut oil, corn oil, cottonseed oil, flaxseed oil, olive oil, palm oil, peanut oil, safflower oil, sesame oil, soybean oil, sunflower and walnut oil.
  • the flow at the inlet is preferably at an elevated temperature, preferably in the range from 20 to 150°C, more preferably in the range from 40 to 100°C, most preferably in the range from 50 to 80°C.
  • the flow is along the flow path, which describes the route taken by the flow through the device and in particular the order in which the flow arrives at the various device parts.
  • the flow is preferably confined to move through a column carved out by translation of a cross-sectional area, the cross-sectional area being the flow cross-sectional area and the path vector being along the path of maximum flow speed.
  • the arrival vector at the impeller is along the axis.
  • the flow is preferably spread substantially radially with respect to the impeller axis.
  • the flow is preferably substantially rotationally symmetric.
  • the departure vector is preferably at the angle of maximum flow speed with respect to inclination from the axis.
  • the preferred criteria for the departure vector are preferably satisfied by at least one departure vector departing form the impeller. It is preferred for a radial flow immediately following the impeller to be substantially rotationally symmetric about the axis, the preferred criteria for the departure vector preferably being satisfied around the entire impeller.
  • the device is preferably adapted and arranged to draw an inlet fluid into the interior via the inlet and expel an outlet fluid from the interior via the outlet.
  • the outlet fluid is preferably different to the inlet fluid.
  • the outlet fluid has a lower content of H 2 O by weight than the inlet fluid.
  • the outlet fluid has a lower content of triglyceride than the input fluid.
  • the outlet fluid has a lower total content than the inlet fluid of suspended or dispersed liquid and suspended or dispersed solid.
  • the device is preferably adapted and arranged to draw the inlet fluid from a cooktop.
  • the device is preferably adapted and arranged as a part for a stove.
  • the device is adapted and arranged to be integrated with complementary parts to obtain a stove.
  • the device is adapted and arranged to be retrofitted with a stove.
  • the device is preferably adapted and arranged to be easily assembled and disassembled.
  • One or more of the device parts are preferably adapted and arranged to be cleaned in a dishwasher.
  • the device of the invention comprises a housing.
  • the housing borders an interior and an exterior.
  • the housing preferably extends over at least 50%, more preferably at least 80%, more preferably still at least 90% of the border between the interior and the exterior.
  • the housing is preferably a container, the contents of which are located in the interior.
  • multiple device parts are located in the interior of the housing.
  • the housing has a top side, a bottom side and a perimeter wall located between the top and bottom sides.
  • the housing is substantially cuboid, the top and bottom sides being opposite faces of the cuboid and the perimeter wall being the remaining four faces of the cuboid. It is preferred for the device to be adapted and arranged to operate in an operating orientation in which the top side is above the bottom side, as defined by the direction of gravity.
  • the housing comprises an inlet located at the top side, providing fluid connection between the outside and the interior via a first flow cross sectional area.
  • the device is preferably adapted and arranged to draw fluid from the outside to the interior via the inlet.
  • the housing may have a single inlet or the housing may comprises two or more inlets.
  • the housing comprises an outlet providing fluid connection between the interior and the outside.
  • the device is preferably adapted and arranged to expel fluid from the interior to the outside via the outlet.
  • the housing may have a single outlet or the housing may comprises two or more outlets.
  • the flow path preferably enters the interior via the inlet and exits the interior via the outlet.
  • the flow path is confined to the interior between the point at which it enters the interior at the inlet and exits the interior at the outlet.
  • the top side can fit within a square having sides of length 60 cm.
  • the device when oriented with the top side vertically above the bottom side can fit inside a vertically oriented square-based prism having, the lengths of the sides of the square being 60 cm.
  • the device comprises an impeller which is adapted and arranged to produce a flow along a flow path.
  • the impeller has an axis.
  • the impeller is preferably adapted and arranged to draw the flow in along its axis and eject the flow radially outwards in relation to its axis.
  • a preferred impeller is a radial impeller or centrifugal impeller.
  • the impeller preferably comprises impeller blades.
  • One or more of the impeller blades preferably all of the impeller blades have a non-uniform thickness, preferably having a thickness which increases from one edge to a maximum thickness and then decrease to another edge.
  • the impeller blades are preferably adapted and arranged to compress the flow as it passes through the impeller, preferably to first compress the flow and subsequently rarefy the flow.
  • the impeller is preferably adapted and arranged to compress the flow as it passes through the impeller, preferably to first compress the flow and subsequently rarefy the flow.
  • the impeller is preferably adapted and arranged to provide the flow inside the compartment with a rotational component of motion.
  • the impeller blades are preferably adapted and arranged to provide the flow inside the compartment with a rotational component of motion.
  • the impeller is adapted and arranged to effect agglomeration of particles in the flow, preferably liquid or solid particles.
  • the device comprises a compartment.
  • the compartment comprises a deflection surface, the deflection surface preferably being adjusted and arranged to deviate the flow path following the impeller, preferably in order to remove material from the flow, preferably liquid or solid or both.
  • the compartment preferably comprises a collection surface, the collection surface being adapted and arranged to collect material from the flow, preferably liquid or solid or both.
  • the compartment preferably is a container.
  • the compartment has a base.
  • the base is preferably a collection surface.
  • the base preferably is adapted and arranged for collecting material from the flow, preferably liquid or solid or both.
  • the base is preferably substantially planar.
  • the base preferably has a top side which is oriented towards the inlet.
  • the base has a base aperture.
  • a preferred base aperture is adapted and arranged to allow connection between the impeller located inside the compartment and a motor outside the compartment.
  • a preferred base aperture is adapted and arranged to accommodate a drive shaft.
  • the compartment has a compartment perimeter wall.
  • the compartment perimeter wall preferably comprises the deflector surface.
  • the compartment perimeter wall is preferably adapted and arranged to deviate the flow following the impeller.
  • a normal to the compartment perimeter wall is preferably perpendicular to the vertical, in relation to the top and bottom sides of the housing. Preferably, all vectors normal to the compartment perimeter wall are perpendicular to the vertical, in relation to the top and bottom sides of the housing.
  • a normal to the compartment perimeter wall is preferably perpendicular to the base. Preferably, all vectors normal to the compartment perimeter wall are perpendicular to the base.
  • a preferred compartment perimeter wall is a cylinder.
  • the compartment has a lid.
  • the lid preferably reduces the flow cross-sectional area into the compartment or out of the compartment or both.
  • the compartment, lid and impeller are preferably adapted and arranged to allow an overpressure inside the compartment.
  • the lid preferably has a lid aperture adapted and arranged to allow the flow path to enter the compartment.
  • the lid and is preferably adapted and arranged to allow the flow path to exit the compartment.
  • the device has a compartment inlet for the flow path to enter the compartment.
  • the compartment inlet is preferably located in a lid.
  • the device has a compartment outlet for the flow path to exit the compartment.
  • the compartment outlet preferably is preferably located in a lid.
  • the compartment outlet preferably comprises a baffle.
  • the compartment outlet preferably is adapted and arranged to alter the rotational motion of the flow about the axis, preferably reduce rotation of the flow about the axis.
  • the compartment outlet preferably is adapted and arranged to convert rotational motion of the flow about the axis to motion parallel to the axis or radial to the axis or both.
  • the compartment comprises a compartment perimeter wall which is substantially a cylinder which shares the axis with the impeller and a circular base which has a normal parallel to the axis.
  • the base has an aperture, preferably for connection of the impeller to a motor.
  • the compartment has a lid, preferably having a normal parallel to the axis.
  • the compartment is substantially rotationally symmetric about the axis.
  • the device may optionally comprise a filter.
  • a preferred filter reduces odour content in the flow. If the device comprises a filter it is preferably after the impeller on the flow path; more preferably after the impeller and the deflector surface; still more preferably after the impeller, the deflector surface and the baffle or after the impeller, the deflector surface and the compartment; most preferably after the impeller, the deflector surface, the baffle and the compartment.
  • a preferred filter is located at the outlet, preferably directly before, directly after or in the outlet.
  • a preferred filter is incorporated in the outlet.
  • a preferred filter is the outlet.
  • a preferred filter is incorporated in the perimeter wall.
  • the invention provides a kit comprising the device and a surface, preferably a cooktop; a process for making a stove; a stove comprising the device, and the use of the device in the context of a stove.
  • the device is preferably employed for extracting fluid, especially waste gas, from a cooktop.
  • the stove is adapted and arranged for fluid, preferably waste gas, to enter into the device through an aperture in a cooktop.
  • the device is located on or above a cooktop, preferably above to the side.
  • Flow path is calculated using the openFoam numerical programme and the CFturbo controller.
  • Figure 1 shows an exploded view of a stove made up of a device according to the invention and a cooktop.
  • a device was provided according to figures 1 and 4 .
  • the dimensions and weight of the device are shown in table 1.
  • the device was engaged with a surface via a circular aperture of diameter 7.5 cm.
  • a waste gas containing H 2 O and olive oil was provided on the top side of the surface.
  • the fan speed was adjusted so as to obtain a flow speed at the aperture of 3 m/s.
  • the device was run for 10 minutes. Half way through the run, the power consumption of the device, and the odour levels and humidity at the outlet were determined.
  • the filters at the outlets were weighed before and after the run to calculate the weight gain due to filtered material left in the outlet filter.
  • Example 1 was performed but without the compartment or the lid and with a 200 Pa filter positioned in the tube between the inlet and the impeller. The flow expelled from the impeller exited generally into the housing without an immediate deflector surface to deflect it.
  • Example 1 was performed but without the compartment or the lid and with a 500 Pa filter positioned in the tube between the inlet and the impeller. The flow expelled from the impeller exited generally into the housing without an immediate deflector surface to deflect it.
  • Example 1 was performed but without the compartment or the lid and with a 800 Pa filter positioned in the tube between the inlet and the impeller. The flow expelled from the impeller exited generally into the housing without an immediate deflector surface to deflect it.
  • the device of comparative example 3 differed from that of the inventive example 1 in that a deflection of the flow was effected by a deviation in the tube before arrival at the impeller.
  • no compartment and lid were employed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separating Particles In Gases By Inertia (AREA)
EP18000426.9A 2018-05-04 2018-05-04 Dispositif extracteur Ceased EP3564588A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18000426.9A EP3564588A1 (fr) 2018-05-04 2018-05-04 Dispositif extracteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18000426.9A EP3564588A1 (fr) 2018-05-04 2018-05-04 Dispositif extracteur

Publications (1)

Publication Number Publication Date
EP3564588A1 true EP3564588A1 (fr) 2019-11-06

Family

ID=62134036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18000426.9A Ceased EP3564588A1 (fr) 2018-05-04 2018-05-04 Dispositif extracteur

Country Status (1)

Country Link
EP (1) EP3564588A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020164849A1 (fr) * 2019-02-15 2020-08-20 Wilhelm Bruckbauer Système de plaque de cuisson
DE102022129567A1 (de) 2022-08-10 2024-02-15 3Defacto Gmbh Kochfeldabzug und Verfahren zum Betreiben eines Kochfeldabzugs

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648378A (en) * 1985-03-15 1987-03-10 Yamaoka Industry Corporation Roaster
BE1000997A6 (nl) 1987-10-16 1989-05-30 Dewaele Rogier Andreas Verluchtingssysteem van een aanbouwkeuken.
JPH04240317A (ja) * 1991-01-24 1992-08-27 Matsushita Seiko Co Ltd 換気装置付調理台
US6168378B1 (en) * 1999-08-10 2001-01-02 Broan-Nutone Llc Air deflectors to accommodate multiple size ventilator outlets
WO2001066258A1 (fr) * 2000-03-09 2001-09-13 Marie Deharpport Lindsay Epurateur d'air portable de cabine de vehicule a moteur
EP2581668A1 (fr) * 2011-10-10 2013-04-17 Gianni Borinato Unité de cuisson
US20130340742A1 (en) * 2012-06-25 2013-12-26 Western Industries, Inc. Cook Top with a Ventilation System and a Blower Mount Therefor
CN106642266A (zh) 2017-01-17 2017-05-10 杭州老板电器股份有限公司 一种用于吸油烟机带导油系统的滤网

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648378A (en) * 1985-03-15 1987-03-10 Yamaoka Industry Corporation Roaster
BE1000997A6 (nl) 1987-10-16 1989-05-30 Dewaele Rogier Andreas Verluchtingssysteem van een aanbouwkeuken.
JPH04240317A (ja) * 1991-01-24 1992-08-27 Matsushita Seiko Co Ltd 換気装置付調理台
US6168378B1 (en) * 1999-08-10 2001-01-02 Broan-Nutone Llc Air deflectors to accommodate multiple size ventilator outlets
WO2001066258A1 (fr) * 2000-03-09 2001-09-13 Marie Deharpport Lindsay Epurateur d'air portable de cabine de vehicule a moteur
EP2581668A1 (fr) * 2011-10-10 2013-04-17 Gianni Borinato Unité de cuisson
US20130340742A1 (en) * 2012-06-25 2013-12-26 Western Industries, Inc. Cook Top with a Ventilation System and a Blower Mount Therefor
CN106642266A (zh) 2017-01-17 2017-05-10 杭州老板电器股份有限公司 一种用于吸油烟机带导油系统的滤网

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020164849A1 (fr) * 2019-02-15 2020-08-20 Wilhelm Bruckbauer Système de plaque de cuisson
DE102022129567A1 (de) 2022-08-10 2024-02-15 3Defacto Gmbh Kochfeldabzug und Verfahren zum Betreiben eines Kochfeldabzugs

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