EP1700065B1 - Procédé et appareil de cuisson - Google Patents

Procédé et appareil de cuisson Download PDF

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Publication number
EP1700065B1
EP1700065B1 EP04768609.2A EP04768609A EP1700065B1 EP 1700065 B1 EP1700065 B1 EP 1700065B1 EP 04768609 A EP04768609 A EP 04768609A EP 1700065 B1 EP1700065 B1 EP 1700065B1
Authority
EP
European Patent Office
Prior art keywords
receptacle
plunger
valve
cooking
burner
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
EP04768609.2A
Other languages
German (de)
English (en)
Other versions
EP1700065A1 (fr
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.)
L'ariete Ltd
Original Assignee
L'ariete Ltd
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
Priority claimed from GB0322253A external-priority patent/GB0322253D0/en
Priority claimed from GB0415484A external-priority patent/GB0415484D0/en
Application filed by L'ariete Ltd filed Critical L'ariete Ltd
Publication of EP1700065A1 publication Critical patent/EP1700065A1/fr
Application granted granted Critical
Publication of EP1700065B1 publication Critical patent/EP1700065B1/fr
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
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges

Definitions

  • This invention relates to a cooking method and apparatus.
  • a cooking method comprising displacing a cooking receptacle to a heating position, the displacement causing the receptacle mechanically to initiate increase of the supply of a gaseous fuel as a source of heat to heat said receptacle, and subsequently removing said receptacle from said heating position, the removal mechanically causing the supply of said fuel to be reduced, characterised in that said displacement of said cooking receptacle to said heating position causes said receptacle to move a burner downwards until said receptacle comes to rest upon a stationary member, and in that the downward movement of said burner initiates said increase of said supply of said fuel.
  • the increase and the reduction are preferably from and to nil supply.
  • cooking apparatus comprising heating means arranged to be supplied with a gaseous fuel for heating a cooking receptacle at a heating position, valve means via which said fuel can be supplied to said heating means, mechanical detecting means for detecting the presence of a cooking receptacle at said heating position, and mechanical transmission means operatively associated with said detecting means and said valve means and whereby displacement of said receptacle into said heating position results in opening of said valve means and removal of said receptacle from said heating position results in closing of said valve means, characterised in that said transmission means includes a vertically displaceable burner.
  • the opening and the closing are preferably from and to a shut-off condition.
  • the cooking method and the cooking apparatus wherein and whereby the removal of a cooking receptacle is automatically detected and the supply of gaseous fuel to the heating position is reduced are improved.
  • the commercial gas cooker 2 has an existing set of hobs 4 which are six in number (but can be higher or lower in number).
  • Each hob 4 has an existing gas pilot light (not shown) with its own existing on/off valve (not shown) and this pilot light remains lit throughout the time that the cooker is generally in use.
  • the hobs include respective central burners 6 supplied with heating gas through respective pipings 8.
  • Existing pipework has been modified, as indicated diagrammatically by the dotted lines 8', to provide the pipings 8.
  • Above each pair of burners 6 is an existing upwardly removable grid 10 which serves to support cooking receptacles at spacings above the burners 6.
  • Below each pair of burners 6 is an existing upwardly removable tray 12.
  • each valve 14 includes a lower housing part 18 with an inlet and an outlet connected to its associated piping 8, and an upper housing part 20 attached to the part 18 and including an upwardly extending sleeve 22 receiving therein a vertically reciprocable valve closure member 24, with a sealing O-ring 26 between the sleeve 22 and the closure member 24.
  • the closure member 24 projects from the top of the sleeve 22 and is downwardly displaceable, against the action of a return spring in the valve 14, by a vertically reciprocable plunger assembly 26.
  • the assembly 26 includes, at its lower end, a tube 28 which can be caused to bear downwardly on the valve closure member 24 to open the on/off valve 14.
  • the tube 28 is made of a ceramic material to minimise conduction of heat from the remainder of the plunger assembly to the valve closure member 24.
  • the plunger assembly 26 also includes a coupling 30 of tubular form and having at its lower end a plain bore 32 into which is fixed, by gluing, the upper end of the ceramic tube 28.
  • the plunger assembly 26 also includes a threaded rod 34 which is screwed into internal threading 36 in the upper part of the coupling 30.
  • the rod 34 carries a boss 38 and a lock nut 40 which retains the boss 38 against rotating relative to the rod 34.
  • the boss 38 is of hexagonal external cross-section and is formed with a domed top surface 42. It includes, extending axially downwardly, an internally threaded stem 44 whereby the boss 38 can be screwed onto the rod 34. Once the boss 38 has been screwed onto the rod 34 so as to place the dome 42 at a desired level, the lock nut 40 is tightened to retain the boss 38 against further rotation relative to the rod 34.
  • Each grid 10 includes a number of thin fingers 46 projecting radially inwards towards the corresponding burners 6, but at a level above that of the burners 6.
  • the plunger assembly 26, and thus the valve 14 operated thereby, are arranged on a vertical axis which extends relatively close to one of the fingers 46 associated with the burner 6 which is supplied via the particular valve 14.
  • the corresponding boss 38 is located at roughly the same level as the finger 46 but such that its domed surface 42 protrudes at a level just above the upper edge of the adjacent finger 46.
  • Each plunger assembly 26 is guided in its vertical movement by a vertical tube 48 which, at its upper end, is substantially a sliding fit in an annular groove 50 formed in the boss 38 around the stem 44.
  • the tube 48 At its lower end the tube 48 is fixed in a tank fitting 52 fixedly mounted in a hole provided therefore in the associated tray 12.
  • the coupling 30 is substantially a sliding fit in the lower end of the tube 48.
  • a tray 54 Below the three trays 12 is a tray 54 to which the valves 14 are fixed by way of respective brackets 56.
  • the shaped head of the plunger assembly 26 provided by the dome 42 enables the receptacle to be slid over the hob or placed directly from above onto the hob, without damage to the plunger assembly or the receptacle.
  • the chef switches on the pilot lights.
  • the domed surface 42 at that hob detects the presence of the receptacle by mechanical pressure and opens the valve 14 dedicated to that particular hob, resulting in the pilot light lighting the supply of gas to the hob.
  • the gas supply control valve (not shown) in the piping 8 to the hob, the chef can adjust the rate of gas supply.
  • the valve 14 is switched off by its return spring.
  • valve 14 allows a very low real level of supply while the receptacle is absent and is switched to a higher level when the domed surface 42 detects the presence of the receptacle.
  • the chef is able to preset the desired real level of supply to each hob from among a range of levels, so that, when he places the receptacle in its cooking position on the hob, the gas supply to the hob automatically commences at that preset level.
  • the operation of the boss (38) may be translated into a movement that operates the valve (34) in any desired orientation.
  • a linkage or other mechanical device may be used to transfer the movement.
  • the arrangement shown is the simplest form, in having a single-sense movement only.
  • plunger is shown as not being integral with the burner, it could in fact be part of the burner itself.
  • valve 14 has been described as a separate component to the gas supply control valve (not shown), but could be designed into it instead.
  • the device consists of two elements, namely the burner head 101 and a burner body assembly 120.
  • the burner body assembly 120 consists of an injector 102, a lock nut 103, a sliding cover 104, flange fixing screws 105, a flanged upper body sleeve 106, a gas-tight diaphragm 107, a sealing plate 108, a sealing washer 109, a plunger 110, the helical compression spring 111 and a flanged lower body cup 112.
  • the plunger 110 is fitted with the sealing washer 109, the sealing plate 108 and the diaphragm 107.
  • the lower end of the plunger is then inserted into the compression spring 111 and the whole placed into the cup 112 which includes a gas inlet stub 113.
  • the sleeve 106 is located over the cup 112 and the plunger 110. The whole is clamped together using the flange fixing screws 105.
  • the sliding cover 104 is placed over the plunger 110 and the diaphragm 107 and secured in position using the lock nut 103.
  • the injector 102 is screwed into a bore 114 in the upper end of the plunger 110 to complete the burner body assembly 120.
  • the burner assembly 120 is hard-piped into a gas supply and the burner head 101 is located over the injector 102, sitting on top of the sliding cover 104.
  • the top edges of the receptacle-supporting fingers 46 and the tops of receptacle-supporting humps 115 on the burner head 101 are vertically spaced apart by a distance d in the condition shown in Figure 8 (in which the receptacle has not yet been placed upon the head 101) such that, upon placing of a receptacle on the humps 115 of the head 101, the head 101 is moved downwards by the receptacle through the distance d until the receptacle rests upon the fingers 46, to bring the device into the condition illustrated in Figure 9 .
  • the burner 101 operates until the receptacle is removed.
  • the compression spring 111 then causes re-sealing of the valve seat 116 and thus cutting-off of the gas supply to the burner head 101.
  • the system can include a safety device that gives an aural warning that the hobs are ready to receive a cooking receptacle in order to avoid an accidental placing on the hobs of an object that is not desired to be heated.
  • the warning does not sound until the last hob is not in use, i.e. if any of the hobs are in use then no warning sound is made. This warning does not sound if a safety lid of the cooker is closed.
  • the continuous gas pilot light is replaced with an electronic device (a spark system or a hot surface ignitor) which lights the pilot shortly before the main burner upon each call for heat, i.e. upon the receptacle's being placed upon the hob.
  • a pilot light is not provided; instead, upon each call for heat an electronic device (a spark system or a hot surface ignitor) lights the gas emitted by the burner.
  • any of the versions hereinbefore described could be supplemented with fan assistance where the air, the gas, or the gas and air mixture, is forced or induced into the burner or to the point of combustion by the use of one or more fans.
  • fan-assisted pre-mix combustion where the gas and the air are mixed and ignited prior to entering the main burner
  • a mechanical valve arrangement similar to that shown diagrammatically for either version illustrated in the drawings.
  • fan-assisted pre-mix combustion there can be added a mechanism whereby the detection of a call for heat initiates a control sequence which operates the fan which then induces or forces an appropriate amount of gas to mix with the air and pass to the burner. With this system a gas/air ratio valve is used and a shut-off valve may not be necessary.
  • Each of the unillustrated versions mentioned above may require a degree of electronic control, in which case microswitches (or similar) may need to be operated by the movement of the plunger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)

Claims (8)

  1. Procédé de cuisson, comprenant le déplacement d'un réceptacle de cuisson à une position de chauffage, le déplacement mécanique dudit réceptacle entraînant l'augmentation de l'alimentation en combustible gazeux (G) comme source de chaleur pour chauffer ledit réceptacle, et par conséquent retirer ledit réceptacle de ladite position de chauffage, le retrait mécanique par la suite entraînant la réduction de l'alimentation en combustible (G), caractérisé en ce que ledit déplacement dudit réceptacle de cuisson à ladite position de chauffage entraîne l'abaissement par ledit réceptacle d'un brûleur (101) jusqu'à ce que ledit réceptacle s'immobilise sur une partie fixe (46), et en ce que l'abaissement dudit brûleur (101) initie l'augmentation de ladite alimentation en ledit combustible (G).
  2. Appareil de cuisson, comprenant un moyen de chauffage conçu de manière à être alimenté en combustible gazeux (G) pour chauffer un réceptacle de cuisson à une position de chauffage, des vannes (108, 109) par lesquelles ledit combustible (G) peut alimenter ledit moyen de chauffage, un moyen de détection mécanique (115) permettant de détecter la présence d'un réceptacle de cuisson à ladite position de chauffage, et des moyens de transmission mécanique (101, 110, 111) associés en fonctionnement audit moyen de détection (115) et auxdites vannes (108, 109), et par lesquels le déplacement dudit réceptacle dans ladite position de chauffage se traduit par l'ouverture desdites vannes (108, 109) et le retrait dudit réceptacle de ladite position de chauffage, entraînant la fermeture desdites vannes (108, 109), caractérisé en ce que lesdits moyens de transmission (101, 110, 111) comprennent un brûleur déplaçable verticalement (101).
  3. Appareil selon la revendication 2, dans lequel lesdits moyens de transmission (101, 110, 111) comprennent un piston plongeur (110) et des moyens de rappel (111), ledit piston plongeur (110) pouvant être enfoncé pour s'opposer à l'action dudit moyen de rappel (111) par ledit déplacement dudit réceptacle, dans ladite position de chauffage.
  4. Appareil selon la revendication 3, dans lequel lesdites vannes (108, 109) font partie d'une vanne (106-109, 111, 112) incluant un manchon de corps supérieur (106), une membrane étanche au gaz (107), et une coupelle de corps inférieur (112), ladite membrane (107) étant interposée de manière hermétique entre ledit manchon de corps (106) et ladite coupelle de corps inférieur (112), et étant reliée de manière hermétique entre lesdites vannes (108, 109) et ledit piston plongeur (110).
  5. Appareil selon la revendication 4, dans lequel ledit piston plongeur (110) est équipé d'un conduit (117, 118) par lequel le combustible (G) peut s'écouler à travers ladite membrane (107).
  6. Appareil selon la revendication 4 ou 5, dans lequel ledit piston plongeur (110) porte un couvercle (104) monté convenablement de manière coulissante sur ledit manchon de corps supérieur (106).
  7. Appareil selon l'une quelconque des revendications 2 à 6, dans lequel ledit moyen de chauffage comprend une plaque de cuisson.
  8. Appareil selon l'une quelconque des revendications 2 à 7, dans lequel ledit brûleur (101) comporte des renflements supportant le réceptacle (115).
EP04768609.2A 2003-09-23 2004-09-23 Procédé et appareil de cuisson Expired - Lifetime EP1700065B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0322253A GB0322253D0 (en) 2003-09-23 2003-09-23 Cooking method and apparatus
GB0415484A GB0415484D0 (en) 2004-07-10 2004-07-10 Cooking method and apparatus
PCT/GB2004/004065 WO2005028961A1 (fr) 2003-09-23 2004-09-23 Procede et appareil de cuisson

Publications (2)

Publication Number Publication Date
EP1700065A1 EP1700065A1 (fr) 2006-09-13
EP1700065B1 true EP1700065B1 (fr) 2017-04-26

Family

ID=34379499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04768609.2A Expired - Lifetime EP1700065B1 (fr) 2003-09-23 2004-09-23 Procédé et appareil de cuisson

Country Status (2)

Country Link
EP (1) EP1700065B1 (fr)
WO (1) WO2005028961A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2542215B1 (es) * 2014-02-03 2016-05-17 Bsh Electrodomesticos Espana Sa Disposición de quemadores de gas, punto de cocción, y cocina
CN111237809B (zh) * 2020-01-19 2022-03-15 浙江郁氏厨具制造有限公司 一种组合式多头燃气煲仔炉

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191229218A (en) * 1912-12-19 1913-03-20 Fletcher Russell & Co Ltd Improvements in or applicable to Hot Plates in Gas Boiling Apparatus.
GB194506A (en) * 1922-02-08 1923-03-15 Henry Walter Wallace Improvements in or relating to means for actuating gas valves or cocks
US2520542A (en) * 1946-10-26 1950-08-29 William T Hamilton Automatic gas burner control
FR990535A (fr) * 1949-07-12 1951-09-24 Dispositif automatique pour la réduction de la consommation des réchauds et cuisinières à gaz
FR1135648A (fr) * 1955-11-18 1957-05-02 Dispositif de sécurité assurant l'automaticité d'allumage et d'extinction pour appareils à gaz
FR1241193A (fr) * 1959-08-03 1960-09-16 Dispositif automatique économiseur de gaz pour appareils de chauffage ménagers
GB1565682A (en) * 1977-03-18 1980-04-23 Gb Sec Of State Environment Control of gas flame heating means
EP0731317A1 (fr) * 1995-03-07 1996-09-11 Therma Grossküchen AG Cuisinière à gaz avec système de détection de la présence d'un récipient
US6805114B2 (en) * 2002-02-22 2004-10-19 Thomas Hobson Outten Attachment for gas grill for automatic burner ignition and method

Also Published As

Publication number Publication date
WO2005028961A8 (fr) 2005-09-15
EP1700065A1 (fr) 2006-09-13
WO2005028961A1 (fr) 2005-03-31

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