EP0392523B1 - Gasbrenner für Kocher. - Google Patents

Gasbrenner für Kocher. Download PDF

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Publication number
EP0392523B1
EP0392523B1 EP90106985A EP90106985A EP0392523B1 EP 0392523 B1 EP0392523 B1 EP 0392523B1 EP 90106985 A EP90106985 A EP 90106985A EP 90106985 A EP90106985 A EP 90106985A EP 0392523 B1 EP0392523 B1 EP 0392523B1
Authority
EP
European Patent Office
Prior art keywords
gas
fact
air
burner
sump
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
EP90106985A
Other languages
English (en)
French (fr)
Other versions
EP0392523A1 (de
Inventor
Luciano Antonini
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.)
Whirlpool EMEA SpA
Original Assignee
Merloni Elettrodomestici 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 Merloni Elettrodomestici SpA filed Critical Merloni Elettrodomestici SpA
Publication of EP0392523A1 publication Critical patent/EP0392523A1/de
Application granted granted Critical
Publication of EP0392523B1 publication Critical patent/EP0392523B1/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
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges

Definitions

  • the present invention relates to a gas burner for food cooking, comprising a sensor of the temperature reached by food contained in heated containers.
  • a burner of the type indicated is known for example by FR-A-1.561.594 or by the Italian patent for industrial invention nr. 1.159.956.
  • Such patent describes a gas burner for the cooking of food contained in. containers, to which there is associated an automatic control system of the temperature reached by the food, by means of a temperature sensor that is kept in contact with the bottom of the heated container.
  • Gas burners wherein the primary air for the air-gas mixture is taken from above the cooking plane are also known (see for example DE-A-1.808.475), but their embodiments do not allow for the arrangement of a temperature sensor in a satisfactory position.
  • the invention is based on the recognition of the fact that it is harmful to take the air from a zone where the temperature can be altered due to the presence of an underlying oven, or other heat sources eventually connected with the automatic control system; and that an other troubling, element is represented by taking the air from a zone in which turbolence is present, both for thermic convection effect, both in case that the system needs a forced ventilation to assure that electronic components do not reach dangerous temperatures.
  • Purpose of the present invention is thus that to obviate to the indicated disadvantages of the known systems, teaching as it is possible to obtain a burner of the described type that even inspite of its simplicity assures mixing costancy of air and gas and thus a perfect combustion.
  • the present invention has for object a gas burner for food cooking, fixed to a cooking plane, comprising a sensor of the temperature reached by food contained in heated containers, said sensor being arranged in a vertical passage obtained in the burner's body, whereby the burner in use shows a vertical axis of symmetry, characterised by the fact that it comprises an air-gas mixing component arranged inside the burner's body in a vertical position proximate to said vertical passage for said sensor, said vertical passage and said air-gas mixing component being substantially centered in respect of the vertical axis of symmetry of the burner's body, and by the fact that the primary air for the air-gas mixture is taken from above the cooking plane.
  • reference number 1 indicates the first element of the burner, or flame-separator element
  • reference number 2 indicates the second element of the device, or actual burner
  • reference number 3 indicates the third element of the burner, or air-gas mixing sump
  • reference number 4 indicates the temperature sensor
  • reference number 5 indicates the gas entry
  • reference number 11 indicates the injector that feeds the gas to the mixing sump, or air-mixing sump
  • reference number 6 indicates the entry slot for the mixing primary air
  • reference number 7 indicates one of the holes used to fix the burner to the cooking plane.
  • the entry slot 6 for the air is a circular one; the air entering by it is mixed in the sump 3 with the gas entering by the entry 5; the mixture rises until the flame-separator 1; the flames exit through the holes 8.
  • the cooking container is supported in a known way by a support grill, not represented in the figures and which is arranged around the burner.
  • the senor 4 is disposed in a vertical passage, passing through the elements 1, 2 and 3 of the burner, and is secured inferiorly to the sump 3 by means of special screw, whose seat is shown in the figure.
  • the sensor 4 is partially shielded from the heat radiated by the flames owerflowing through the holes 8 by means of the shield realized by the hollow cylindrical particular 12, while it is shielded from the conduction heat of the burner by means of the air flow which crosses the chimney 13.
  • Figure 2 shows in section and in view the flame-separator element 1 of the burner according to the invention; the reference number 9 indicates eight equidistant centring-teeth, arranged on a circumference.
  • FIG. 3 shows in section the actual burner 2 of the device according to the invention.
  • figure 4 which shows in section the sump 3 of the burner according to the invention, it is shown, indicated with reference number 10, a centring tooth, which ingages in a special recess obtained in the burner element 2, as shown in figure 1; the tooth 10 is in effect a prolongation of the wall of the vertical passage for the sensor 4.
  • the tooth 10 assures therefore the centring of the gas jet that exits through the gas injector 11 in respect of the Venturi tube indicated in figure 1 with reference number 14.
  • FIG 5 there is shown the temperature sensor 4 of the burner according to the invention.
  • the sensor 4 superiorly includes a spring-cap, so that it is pressed against the cooking container, and internally, also superiorly, the element sensitive to the temperature, which is a resistor with negative temperature coefficient (NTC); such resistor is inserted in a suitable control electronic circuit, of known type, to mantain the container at a constant temperature.
  • NTC negative temperature coefficient
  • the mechanic support having the purpose to house the element sensitive to the temperature (NTC) is secured to the third element of the burner 3 by means of a threaded hole 15 and a screw not shown in the figure.
  • protruding point-shaped elements such as pyramidal protrusions, are provided to minimize the zone of contact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Control Of Combustion (AREA)

Claims (12)

  1. Gasbrenner für Kocher, befestigt an einer Kochfläche, bestehend aus einem Sensor (4) zur Erfassung der Temperatur, die die in dem erhitzten Kochgefäß enthaltenen Speisen erreichen, welcher Sensor (4) in einem vertikalen Durchgang (12, 13) im Brenner (1, 2, 3) angeordnet ist, wobei der sich im Gebrauch befindliche Brenner eine vertikale Symmetrieachse aufweist, dadurch gekennzeichnet, daß er eine Luftgasmischeinrichtung (14) enthält, die innerhalb des Brenners (1, 2, 3) in vertikaler Lage nahe beim vertikalen Durchgang (12, 13) für den Sensor (4) angeordnet ist, welcher vertikale Durchgang (12, 13) und welche Luftgasmischeinrichtung (14) im wesentlichen in bezug auf die vertikale Symmetrieachse des Brenners (1, 2, 3) zentrisch angeordnet sind, und daß die Primärluft für das Luftgasgemisch von der Kochfläche abgenommen wird.
  2. Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, daß der Brenner in der gegebenen Anordnung von oben nach unten ein Flammentrennelement (1), ein Zwischenelement (2), das der eigentliche Brenner ist, und ein wannenförmiges Element (3) aufweist, in dem das Gas mit der Luft gemischt wird.
  3. Gasbrenner nach Anspruch 2, dadurch gekennzeichnet, daß der vertikale Durchgang (12, 13) für den Sensor (4) durch das Flammentrennelement (1), das Zwischenelement (2) und das wannenförmige Element (3) führt.
  4. Gasbrenner nach Anspruch 2, dadurch gekennzeichnet, daß er einen kreisförmigen Eintrittsschlitz (6) für die Primärluft aufweist, die mit dem Gas zu mischen ist, der durch den Abstand zwischen dem Zwischenelement (2) und dem wannenförmigen Element (3) festgelegt ist.
  5. Gasbrenner nach Anspruch 3, dadurch gekennzeichnet, daß der vertikale Durchgang (12, 13) ebenfalls für die Zentrierung des Zwischenelementes (2) in bezug auf das wannenförmige Element (3) vorgesehen ist.
  6. Gasbrenner nach Anspruch 3, dadurch gekennzeichnet, daß der vertikale Durchgang (12, 13) auch für die vertikale Positionierung des Zwischenelementes (2) in bezug auf das wannenförmige Element (3) vorgesehen ist, um die Höhe des Eintrittsschlitzes (6) für die Primärluft, die mit dem Gas zu vermischen ist, zu bestimmen.
  7. Gasbrenner nach Anspruch 3, dadurch gekennzeichnet, daß der vertikale Durchgang (12, 13) Vorrichtungen zumindest zur teilweisen Abschirmung der Hitze aufweist, die auf den Sensor (4) sowohl durch Abstrahlung als auch durch Weiterleitung durch den Brenner einwirken kann.
  8. Gasbrenner nach Anspruch 7, dadurch gekennzeichnet, daß die Vorrichtungen ein hohlzylindrisches Element (12) aufweisen, das aus dem Flammentrennelement (1) und einem Kaminpfad (13) hervorsteht, der einen Strom aufsteigender Luft zur Kühlung des Sensors (4) erzeugt.
  9. Gasbrenner nach Anspruch 7, dadurch gekennzeichnet, daß er thervorstehende schwertförmige Elemente (16) am Befestigungspunkt des Sensors (4) an dem wannenförmigen Element (3) aufweist.
  10. Gasbrenner nach Anspruch 8, dadurch gekennzeichnet, daß das hohlzylindrische Element (12) und die Luftgasmischeinrichtung (14) aus dem Zwischenelement (2) herausgearbeitet sind.
  11. Gasbrenner nach Anspruch 2, dadurch gekennzeichnet, daß er Zentriervorrichtungen (10) zwischen dem Zwischenelement (2) und dem wannenförmigen Element (3) aufweist, um die Position der Luftgasmischeinrichtung (14), die Teil des Zwischenelementes (2) ist, in bezug auf einen Gasinjektor (11), der Teil des wannenförmigen Elementes (3) ist, zu fixieren.
  12. Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, daß die Luftgasmischeinrichtung (14) eine Röhre des Typs Venturi ist.
EP90106985A 1989-04-14 1990-04-11 Gasbrenner für Kocher. Expired - Lifetime EP0392523B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6727989 1989-04-14
IT8967279A IT1233204B (it) 1989-04-14 1989-04-14 Perfezionamenti a un bruciatore di gas per cottura di alimenti

Publications (2)

Publication Number Publication Date
EP0392523A1 EP0392523A1 (de) 1990-10-17
EP0392523B1 true EP0392523B1 (de) 1993-03-17

Family

ID=11301095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106985A Expired - Lifetime EP0392523B1 (de) 1989-04-14 1990-04-11 Gasbrenner für Kocher.

Country Status (4)

Country Link
EP (1) EP0392523B1 (de)
DE (1) DE69001086T2 (de)
ES (1) ES2039984T3 (de)
IT (1) IT1233204B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU632217B2 (en) * 1990-02-23 1992-12-17 Brivis Australia Pty Ltd A burner assembly
US6589046B2 (en) * 2001-08-21 2003-07-08 Uwe Harneit Gas burner for outdoor cooking
CN101382301B (zh) * 2007-09-05 2011-10-26 海尔集团公司 防干烧双环燃烧系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB969096A (en) * 1962-07-10 1964-09-09 British Thermostat Co Ltd Improvements in thermostatic controls for surface heaters
FR1561594A (de) * 1967-06-15 1969-03-28
CH499751A (de) * 1967-11-27 1970-11-30 Menalux S A Verfahren zum Verhindern des Erlöschens der Aussenbrenner eines Einbaugasherdes und Einrichtung zur Durchführung des Verfahrens
GB1347249A (en) * 1970-07-31 1974-02-27 Parkinson Cowan Appliances Ltd Gas burner
FR2507743B1 (fr) * 1981-06-15 1986-05-30 Sabaf Spa Bruleur pour rechauds et plans de cuisson a gaz en general
IT8406969V0 (it) * 1984-04-16 1984-04-16 Sabaf Spa Bruciatore a gas per fornelli e piani di cottura in genere.

Also Published As

Publication number Publication date
DE69001086D1 (de) 1993-04-22
EP0392523A1 (de) 1990-10-17
ES2039984T3 (es) 1993-10-01
IT1233204B (it) 1992-03-20
IT8967279A0 (it) 1989-04-14
DE69001086T2 (de) 1993-08-26

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