EP0181811B1 - Liquefied-gas lighter having a flat flame with a wider middle part - Google Patents

Liquefied-gas lighter having a flat flame with a wider middle part Download PDF

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Publication number
EP0181811B1
EP0181811B1 EP85402103A EP85402103A EP0181811B1 EP 0181811 B1 EP0181811 B1 EP 0181811B1 EP 85402103 A EP85402103 A EP 85402103A EP 85402103 A EP85402103 A EP 85402103A EP 0181811 B1 EP0181811 B1 EP 0181811B1
Authority
EP
European Patent Office
Prior art keywords
lighter
nozzles
burner
gas
flame
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
Application number
EP85402103A
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German (de)
French (fr)
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EP0181811A1 (en
Inventor
Jean-Philippe Ainoz
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.)
ST Dupont SA
Original Assignee
ST Dupont SA
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Filing date
Publication date
Application filed by ST Dupont SA filed Critical ST Dupont SA
Priority to AT85402103T priority Critical patent/ATE29775T1/en
Publication of EP0181811A1 publication Critical patent/EP0181811A1/en
Application granted granted Critical
Publication of EP0181811B1 publication Critical patent/EP0181811B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q2/00—Lighters containing fuel, e.g. for cigarettes
    • F23Q2/16—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase
    • F23Q2/162—Lighters with gaseous fuel, e.g. the gas being stored in liquid phase with non-adjustable gas flame
    • F23Q2/163—Burners (gas valves)

Definitions

  • the present invention relates to a liquefied gas lighter, with a flat flame enlarged in its middle part.
  • the simplest consists in increasing the diameter of the gas evacuation nozzle, but the flow rate of the lighter is then important and an elongated, unattractive flame is obtained.
  • butterfly burners inspired by the technique used on acetylene lamps, that is to say a burner with two heads, the nozzles of which are spaced from one another and inclined towards the axis of the burner.
  • Figures 1 and 2 illustrate two lighters of the prior art comprising a burner which emits two flames intended to come together to form a single enlarged flame.
  • the burner 1 of the lighter 2 comprises two bores 3 and 4 with parallel axes, supplied with gas by the same conduit 5.
  • the flame 6 thus produced remains however relatively narrow, as in the prior art, at less increase the gas flow, which has the disadvantage of simultaneously increasing the length of the flame.
  • the lighter 7 comprises a burner 8 having two divergent bores 9 and 10, arranged symmetrically with respect to the axis of the burner and supplied by the same duct 11.
  • the present invention aims to remedy these drawbacks by proposing a lighter whose flame is flat and wide, and has good stability and a satisfactory height, without however requiring an excessive exit speed and gas flow rate.
  • the invention therefore relates to a gas lighter with a flat flame enlarged in its middle part, of the type comprising a burner comprising two gas outlet nozzles with divergent axes, characterized in that said nozzles have such a shape or are arranged in such a way that at their lower part, they open tangentially to an adjacent surface of the burner or of the body of the lighter, which the gas flow which they emit comes to lick.
  • the lower part of the gas flow of the nozzles will be braked by the adjacent surfaces and the flames they will emit can come together to form only an enlarged flat flame, of a satisfactory height and of great stability.
  • the burner nozzles will be arranged symmetrically with respect to its axis and their upper part will be inclined at least about 30 ° from this axis.
  • the nozzles will have an internal throttle giving them a convergent-divergent profile.
  • this burner 15 comprises two gas outlet nozzles, respectively 16 and 17, supplied with gas by a same conduit 18, formed in the body of the lighter, via a central conduit 19 of the burner.
  • Nozzles 16 and 17 are arranged symmetrically with respect to the axis of the burner and their part upper is inclined on it by an angle of 45 °.
  • the burner has a boss 20, by which it bears on the body of the lighter and on the surface of which tangentially opens the lower part of the nozzles 16 and 17.
  • the gas thus comes to lick the upper surface of the boss 20 , by which it is braked, which has the effect that the two flames emitted by the nozzles 16 and 17 can come together to form a single flame, flat and wide, of a satisfactory height.
  • the central channel 19 communicates with the nozzles 16 and 17 by a restriction giving the assembly a venturi profile favorable to a deceleration of the gases at the outlet of the nozzles.
  • FIG 4 shows another embodiment of the invention, in which the burner is constituted by a substantially cylindrical pin 22, in which are formed slots 23 and 24 constituting the gas discharge nozzles, this burner 22 being simply fitted into a recess 25 of complementary profile of the body of the lighter, supplied with gas by a conduit 27.
  • the lower part of the nozzles 23 and 24 is therefore formed by the surface of the body of the lighter, which the gas leaving the burner comes to lick.
  • the gas is thus braked and the flames emitted by the nozzles 23 and 24 merge into a single flat flame 28, wide in its middle part.
  • the edge 29 of the recess 25 forms a constriction inside the slots 23 and 24, so that, by the diverging effect, the outgoing gas undergoes an increased braking effect which is conducive to obtaining a wide and stable flame.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighters Containing Fuel (AREA)

Abstract

The invention relates to a gas lighter with a flat flame widened in its median part, of the type comprising a burner (22) having two gas exit nozzles (23, 24) with diverging axes. According to the invention, said nozzles have a shape or are disposed such that, at their lower parts, they terminate at a tangent to an adjacent surface of the burner or body of the lighter, licked by the gas flow they emit.

Description

La présente invention concerne un briquet à gaz liquéfié, à flamme plate élargie dans sa partie médiane.The present invention relates to a liquefied gas lighter, with a flat flame enlarged in its middle part.

Pour certaines applications, il est souhaitable de pouvoir disposer d'un briquet dont la flamme soit plus large que celle d'un briquet ordinaire. C'est le cas, en particulier, lorsque l'on désire allumer un cigare, une flamme élargie dans sa partie médiane étant alors particulièrement désirable.For certain applications, it is desirable to be able to have a lighter whose flame is wider than that of an ordinary lighter. This is the case, in particular, when it is desired to light a cigar, an enlarged flame in its middle part then being particularly desirable.

Dans le but d'élargir la flamme d'un briquet et de la rendre propre à un allumage aisé et satisfaisant des cigares, diverses solutions ont déjà été proposées.In order to widen the flame of a lighter and make it suitable for easy and satisfactory lighting of cigars, various solutions have already been proposed.

La plus simple consiste à accroître le diamètre de la buse d'évacuation du gaz, mais le débit du briquet est alors important et l'on obtient une flamme allongée, peu esthétique.The simplest consists in increasing the diameter of the gas evacuation nozzle, but the flow rate of the lighter is then important and an elongated, unattractive flame is obtained.

Pour réduire le débit, on peut envisager de former des flammes plates et, dans ce but, on pourrait réaliser des brûleurs dits papillons, s'inspirant de la technique utilisée sur les lampes à acétylène, c'est-à-dire un brûleur à deux têtes, dont les buses sont écartées l'une de l'autre et inclinéesen direction de l'axe du brûleur.To reduce the flow, one can consider forming flat flames and, for this purpose, one could make so-called butterfly burners, inspired by the technique used on acetylene lamps, that is to say a burner with two heads, the nozzles of which are spaced from one another and inclined towards the axis of the burner.

L'inconvénient majeur de ce type de brûleurs tient à leur encombrement, puisqu'il est nécessaire de disposer de deux têtes écartées. En outre, la mise en oeuvre des briquets de ce type est relativement complexe.The major drawback of this type of burners is their size, since it is necessary to have two heads apart. In addition, the implementation of lighters of this type is relatively complex.

Il est donc apparu qu'un briquet à flamme large comportant deux flammes réunies pourformer une unique flamme élargie ne devrait comporter qu'une seule tête de brûleur, d'où proviendraient les deux flammes.It therefore appeared that a large flame lighter comprising two flames joined together to form a single enlarged flame should have only one burner head, from which the two flames would come.

On a déjà réalisé des briquets s'inspirant de ce principe et ils apparaissent sur lesfigures 1 et2 des dessins schématiques annexés. Sur ces dessins, qui représentent également des formes de mise en oeuvre de la présente invention que l'on décrira ci-après:

  • La figure 1 est une coupe axiale partielle suivant l'axe du brûleur d'un briquet à deux flammes confondues de la technique connue;
  • la figure 2 est une coupe analogue d'un autre briquet à deux flammes de la technique antérieure;
  • les figures 3 et 4 sont des coupes axiales partielles suivant l'axe du brûleur de deux briquets conformes à l'invention;
  • la figure 5 est une coupe suivant la ligne V-V de la figure 4.
Lighters based on this principle have already been produced and they appear in FIGS. 1 and 2 of the attached schematic drawings. In these drawings, which also represent embodiments of the present invention which will be described below:
  • Figure 1 is a partial axial section along the axis of the burner of a lighter with two combined flames of the known technique;
  • Figure 2 is a similar section of another lighter with two flames of the prior art;
  • Figures 3 and 4 are partial axial sections along the axis of the burner of two lighters according to the invention;
  • FIG. 5 is a section along the line VV in FIG. 4.

Les figures 1 et 2 illustrent deux briquets de la technique antérieure comprenant un brûleur qui émet deux flammes destinées à se réunir pour former une flamme unique élargie.Figures 1 and 2 illustrate two lighters of the prior art comprising a burner which emits two flames intended to come together to form a single enlarged flame.

Dans le cas de la figure 1, le brûleur 1 du briquet 2 comprend deux alésages 3 et 4 à axes parallèles, alimentés en gaz par un même conduit 5. La flamme 6 ainsi produite reste cependant relativement étroite, comme dans la technique antérieure, à moins d'augmenter le débit du gaz, ce qui a pour inconvénient d'accroître simultanément la longueur de la flamme.In the case of FIG. 1, the burner 1 of the lighter 2 comprises two bores 3 and 4 with parallel axes, supplied with gas by the same conduit 5. The flame 6 thus produced remains however relatively narrow, as in the prior art, at less increase the gas flow, which has the disadvantage of simultaneously increasing the length of the flame.

Une autre solution est celle illustrée par la figure 2, où le briquet 7 comporte un brûleur 8 ayant deux alésages divergents 9 et 10, disposés symétriquement par rapport à l'axe du brûleur et alimentés par un même conduit 11.Another solution is that illustrated in FIG. 2, where the lighter 7 comprises a burner 8 having two divergent bores 9 and 10, arranged symmetrically with respect to the axis of the burner and supplied by the same duct 11.

Dans un tel briquet, tant que le débit de gaz est faible, les flammes émises par les alésages 9 et 10 se réunissent très facilement pour former une flamme relativement large, mais de très faible hauteur. Si l'on augmente alors le débit pour accroître la hauteur de la flamme, les deux flammes 12 et 13 émises par les alésages 9 et 10 divergent malheureusement dès que la vitesse de sortie du gaz atteint un certain seuil et l'on n'obtient donc plus une flamme unique et large.In such a lighter, as long as the gas flow is low, the flames emitted by the bores 9 and 10 meet very easily to form a relatively large flame, but of very low height. If the flow is then increased to increase the height of the flame, the two flames 12 and 13 emitted by the bores 9 and 10 unfortunately diverge as soon as the gas exit speed reaches a certain threshold and one does not obtain so no longer a single, wide flame.

La présente invention vise à remédier à ces inconvénients en proposant un briquet dont la flamme soit plate et large, et ait une bonne stabilité et une hauteur satisfaisante, sans nécessiter pour autant une vitesse de sortie et un débit du gaz qui soient excessifs.The present invention aims to remedy these drawbacks by proposing a lighter whose flame is flat and wide, and has good stability and a satisfactory height, without however requiring an excessive exit speed and gas flow rate.

En partant de la technique antérieure illustrée par la figure 2, la Demanderesse a, en effet, remarqué que la séparation en deux flammes distinctes, à grand débit, de la flamme unique obtenue àfaible débit tient à la trop grande vitesse de sortie du gaz et elle a établi que, pour pallier cet inconvénient, il suffit de freiner le gaz à la sortie des buses du brûleur, en lui faisant léchertangentiellenιent une surface adjacente.Starting from the prior art illustrated in FIG. 2, the Applicant has in fact noticed that the separation into two distinct flames, at high flow rate, of the single flame obtained at low flow rate is due to the too high gas exit speed and it has established that, to overcome this drawback, it suffices to brake the gas at the outlet of the burner nozzles, making it léchertangentiellenιent an adjacent surface.

L'invention a par conséquent pour objet un briquet à gaz à flamme plate élargie dans sa partie médiane, du type comprenant un brûleur comportant deux buses de sortie de gaz à axes divergents, caractérisé en ce que lesdites buses ont une forme telle ou sont disposées de façon telle qu'à leur partie inférieure, elles débouchent tangentiellement à une surface adjacente du brûleur ou du corps du briquet, que vient lécher le flux gazeux qu'elles émettent.The invention therefore relates to a gas lighter with a flat flame enlarged in its middle part, of the type comprising a burner comprising two gas outlet nozzles with divergent axes, characterized in that said nozzles have such a shape or are arranged in such a way that at their lower part, they open tangentially to an adjacent surface of the burner or of the body of the lighter, which the gas flow which they emit comes to lick.

De ce fait, la partie inférieure du flux gazeux des buses sera freinée par les surfaces adjacentes et les flammes qu'elles émettront pourront se réunir pour ne former qu'une flamme plate élargie, d'une hauteur satisfaisante et d'une grande stabilité.Therefore, the lower part of the gas flow of the nozzles will be braked by the adjacent surfaces and the flames they will emit can come together to form only an enlarged flat flame, of a satisfactory height and of great stability.

Avantageusement, les buses du brûleur seront disposées symétriquement par rapport à son axe et leur partie supérieure sera inclinée d'au moins environ 30° à partir de cet axe.Advantageously, the burner nozzles will be arranged symmetrically with respect to its axis and their upper part will be inclined at least about 30 ° from this axis.

De préférence, afin d'accroître l'effet de freinage exercé sur le gaz, les buses présenteront un étranglement interne leur conférant un profil de convergent-divergent.Preferably, in order to increase the braking effect exerted on the gas, the nozzles will have an internal throttle giving them a convergent-divergent profile.

Dans une première forme de réalisation d'un briquet conforme à l'invention, représentée sur la figure 3, les surfaces que vient lécher le gaz à la sortie des buses appartiennent au brûleur lui- même. Ce brûleur 15 comprend deux buses de sortie du gaz, respectivement 16 et 17, alimentées en gaz par un même conduit 18, ménagé dans le corps du briquet, par l'intermédiaire d'un conduit central 19 du brûleur.In a first embodiment of a lighter according to the invention, shown in FIG. 3, the surfaces that the gas comes to lick at the outlet of the nozzles belong to the burner itself. This burner 15 comprises two gas outlet nozzles, respectively 16 and 17, supplied with gas by a same conduit 18, formed in the body of the lighter, via a central conduit 19 of the burner.

Les buses 16 et 17 sont disposées symétriquement par rapport à l'axe du brûleur et leur partie supérieure est inclinée sur celui-ci d'un angle de 45°.Nozzles 16 and 17 are arranged symmetrically with respect to the axis of the burner and their part upper is inclined on it by an angle of 45 °.

Conformément à l'invention, le brûleur comporte un bossage 20, par lequel il prend appui sur le corps du briquet et à la surface duquel débouche tangentiellement la partie inférieure des buses 16 et 17. Le gaz vient ainsi lécher la surface supérieure du bossage 20, par laquelle il est freiné, ce qui a pour effet que les deux flammes émises par les buses 16 et 17 peuvent se réunir pour former une unique flamme, plate et large, d'une hauteur satisfaisante. On remarquera que le canal central 19 communique avec les buses 16 et 17 par une restriction conférant à l'ensemble un profil de venturi favorable à un ralentissement des gaz à la sortie des buses.According to the invention, the burner has a boss 20, by which it bears on the body of the lighter and on the surface of which tangentially opens the lower part of the nozzles 16 and 17. The gas thus comes to lick the upper surface of the boss 20 , by which it is braked, which has the effect that the two flames emitted by the nozzles 16 and 17 can come together to form a single flame, flat and wide, of a satisfactory height. It will be noted that the central channel 19 communicates with the nozzles 16 and 17 by a restriction giving the assembly a venturi profile favorable to a deceleration of the gases at the outlet of the nozzles.

La figure 4 montre une autre forme de réalisation de l'invention, dans laquelle le brûleur est constitué par un pion 22 sensiblement cylindrique, dans lequel sont ménagées des fentes 23 et 24 constituant les buses d'évacuation du gaz, ce brûleur 22 étant simplement emmanché dans un évidement 25 de profil complémentaire du corps du briquet, alimenté en gaz par un conduit 27. La partie inférieure des buses 23 et 24 est donc constituée par la surface du corps du briquet, que le gaz sortant du brûleur vient ainsi lécher.Figure 4 shows another embodiment of the invention, in which the burner is constituted by a substantially cylindrical pin 22, in which are formed slots 23 and 24 constituting the gas discharge nozzles, this burner 22 being simply fitted into a recess 25 of complementary profile of the body of the lighter, supplied with gas by a conduit 27. The lower part of the nozzles 23 and 24 is therefore formed by the surface of the body of the lighter, which the gas leaving the burner comes to lick.

Comme précédemment, le gaz est ainsi freiné et les flammes émises par les buses 23 et 24 se confondent en une unique flamme plate 28, large dans sa partie médiane. On remarquera que le bord 29 de l'évidement 25 forme à l'intérieur des fentes 23 et 24 un étranglement, de sorte que, par effet de divergent, le gaz sortant subit un effet accru de freinage proprice à l'obtention d'une flamme large et stable.As before, the gas is thus braked and the flames emitted by the nozzles 23 and 24 merge into a single flat flame 28, wide in its middle part. It will be noted that the edge 29 of the recess 25 forms a constriction inside the slots 23 and 24, so that, by the diverging effect, the outgoing gas undergoes an increased braking effect which is conducive to obtaining a wide and stable flame.

Claims (5)

1. A gas lighter producing a flat flame which is enlarged in its central portion of the type comprising a burner (15; 22) having two gas outlet nozzles (16, 17; 23, 24) with divergent axes, characterised in that said nozzles are of such a shape or are disposed in such a way that in their lower part they open tangentially to an adjacent surface (20) of the burner or the body of the lighter, which is licked by the gas flow that they emit.
2. A lighter according to claim 1, characterised in that said nozzles (16, 17; 23, 24) are disposed symmetrically with respect to the axis of the burner and that their upper part is inclined by at least 30° with respect to said axis.
3. A lighter according to one of claims 1 and 2, characterised in that said nozzles comprise an internal constriction (29).
4. A lighter according to one of claims 1 to 3, characterised in that the burner (15) comprises a boss (20) by means of which it is supported on the body of the lighter, and that the lower part of said nozzles (16,17) opens tangentially to the outside surface of said boss.
5. A lighter according to one of claims 1 to 3, characterised in that the burner (22) is in the general shape of a cylinder in which said nozzles are formed by two lateral slots (16,17), and that it is engaged into a recess in the body of the lighter, at the surface of which said nozzles (16,17) open tangentially.
EP85402103A 1984-10-31 1985-10-31 Liquefied-gas lighter having a flat flame with a wider middle part Expired EP0181811B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85402103T ATE29775T1 (en) 1984-10-31 1985-10-31 GAS LIGHTER WITH A FLAT FLAME, WIDER IN THE CENTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8416703A FR2572498B1 (en) 1984-10-31 1984-10-31 LIQUEFIED GAS LIGHTER, WITH A FLAT FLAME EXTENDED IN ITS MEDIUM PART
FR8416703 1984-10-31

Publications (2)

Publication Number Publication Date
EP0181811A1 EP0181811A1 (en) 1986-05-21
EP0181811B1 true EP0181811B1 (en) 1987-09-16

Family

ID=9309195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402103A Expired EP0181811B1 (en) 1984-10-31 1985-10-31 Liquefied-gas lighter having a flat flame with a wider middle part

Country Status (6)

Country Link
US (1) US4639214A (en)
EP (1) EP0181811B1 (en)
JP (1) JPH0619233B2 (en)
AT (1) ATE29775T1 (en)
DE (1) DE3560651D1 (en)
FR (1) FR2572498B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3034188B2 (en) * 1995-09-08 2000-04-17 石光金属工業株式会社 Gas lighter for cigar tobacco
US20020187446A1 (en) * 2001-06-07 2002-12-12 Wong Chi Lam Torch lighter for cigar
FR2884901A1 (en) * 2005-04-26 2006-10-27 Serge Tachnoff Gas burner e.g. lighter, for lighting cigar, has deflector separating flow of gas exiting orifice so as to divide flame produced by burner into two symmetrical parts for generating gas flow on both sides of deflector
JP5743310B2 (en) * 2010-09-17 2015-07-01 ウインドミル株式会社 Gas lighter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2318985A (en) * 1940-11-23 1943-05-11 Charles I Baker Gas burner
US2525432A (en) * 1946-11-16 1950-10-10 Eclipse Fuel Eng Co Gaseous fuel burner, including flame retainer
DE1212326B (en) * 1964-07-25 1966-03-10 Heinrich Maltner G M B H Burner for gas lighters
US3580700A (en) * 1968-11-27 1971-05-25 Thayer C Hinckley Burner for cigarette lighter
BE788326A (en) * 1971-09-13 1973-01-02 Dupont S T LIGHTER IMPROVEMENTS
JPS5040072B2 (en) * 1971-10-20 1975-12-22
AU474827B2 (en) * 1972-11-03 1974-05-09 Koyo Fastener Co., Ltd Sprinkler nozzle
JPS59148950U (en) * 1983-03-23 1984-10-04 株式会社東海精器 Gas lighter nozzle

Also Published As

Publication number Publication date
EP0181811A1 (en) 1986-05-21
FR2572498B1 (en) 1987-06-12
ATE29775T1 (en) 1987-10-15
FR2572498A1 (en) 1986-05-02
US4639214A (en) 1987-01-27
DE3560651D1 (en) 1987-10-22
JPS61153314A (en) 1986-07-12
JPH0619233B2 (en) 1994-03-16

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