US3704085A - Arrangement of ignition electrodes of electrically ignited gas lighters - Google Patents

Arrangement of ignition electrodes of electrically ignited gas lighters Download PDF

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Publication number
US3704085A
US3704085A US66290A US3704085DA US3704085A US 3704085 A US3704085 A US 3704085A US 66290 A US66290 A US 66290A US 3704085D A US3704085D A US 3704085DA US 3704085 A US3704085 A US 3704085A
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US
United States
Prior art keywords
gas
electrode
discharging means
electrodes
ignition
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
US66290A
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English (en)
Inventor
Helmut Pietzonka
Hans Schindler
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Braun GmbH
Original Assignee
Braun GmbH
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Filing date
Publication date
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Publication of US3704085A publication Critical patent/US3704085A/en
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Expired - Lifetime 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
    • F23Q2/28—Lighters characterised by electrical ignition of the fuel
    • F23Q2/285—Lighters characterised by electrical ignition of the fuel with spark ignition

Definitions

  • the high performance ignition system occupies an increased space within the gas lighter of the gas tank volume must be correspondingly reduced.
  • the gas tank reduction is particularly disadvantageous in pocket gas lighter where the necessity of an inconveniently frequent refilling will result.
  • the production and operational costs of the lighter are also increased.
  • Another object of this invention is to improve cooling of the ignition electrode system.
  • Still another object of this invention is to reduce size of the electrode ignition system, thereby increasing the fuel tank capacity.
  • the above objects are attained by arranging one of the electrodes in such a manner as to project into the central zone of the gas jetting from the gas discharge nozzle, and as to function as a reflecting body for the impinging gas jet portion.
  • the gas reflecting ignition electrode can be disposed at any vertical level within this central zone. That is, it can be positioned either immediately above the outlet nozzle opening or as far as at the uppermost region of the central zone.
  • the spacing between the tips of the ignition electrodes is in the range of 0.5 mm to 3 mm, preferably between 1 mm to 2 mm, subject to the employed voltage and capacity of the electric power source.
  • the gas reflecting electrode is arranged perpendicularly to the axis of the gas jet and when the outer electrode lies in its plane. It is also advantageous when the gas reflecting electrode that projects into the central zone of the gas jet has a thermally and electrically conductive connection with a metal portion of the chassis of the lighter having a large thermal capacity.
  • the electrode within the central zone of the gas jet has a positive or negative polarity; since the negative pole of the voltage source is, as a rule, connected to the chassis of the lighter, the gas reflecting electrode is also connected to the negative pole.
  • FIG. 1 is a cutaway elevational view, partly in section, of a basic arrangement of the ignition electrodes of this invention
  • FIG. 2 is a similar view as shown in FIG. 1 of the ignition electrodes arranged in a protective tube;
  • FIG. 3 is a cutaway elevational view, partly in section, of another modification of the arrangement of FIG. 2',
  • FIG. 4 is an elevational view, partly in section, of a gas lighter with electric ignition electrodes arranged in accordance with FIG. 3;
  • FIG. is a plan view, partly in section, of still another modification of the arrangement of the ignition electrodes.
  • FIG. 6 is a perspective view of the electrode arrangement of FIG. 5.
  • FIG. 1 shows an outlet nozzle 1 through which a jet of gas 2 to be ignited is discharged.
  • a first ignition electrode 3 Perpendicularly to the axis of the gas jet 2, a first ignition electrode 3 projects into the central zone of the gas jet 2, preferably beyond the axis of the gas jet, thereby acting as a gas reflecting body.
  • a second ignition electrode 4 is located in pure air outside the gas jet 2 and opposite to the tip of the first electrode 3. The distance between the tips of the electrodes 3 and 4 is in the range of 0.5
  • a protective metal tube 5 is coaxially disposed around the nozzle 1 and the gas jet 2, whereby the ignition electrodes 3 and 4 are supported by the tube 5.
  • the gas reflecting electrode 3, projecting into the gas jet 2 has one end integral with the tube 5, whereas the outer electrode 4 is supported in an insulating bushing 51 passing through the wall of the tube 5.
  • the bushing 51 may be situated either at the level of the gas reflecting first electrode 3 FIG. 2), or it may be also arranged at a lower level and the projecting portion of the tip of the first electrode 3 (FIG. 3).
  • FIG. 4 schematically shows the structure of a complete gas lighter with ignition electrodes arranged at different levels of the protective tube 5, as illustrated in FIG. 3.
  • the protective tube 5 is made of an electrically and thermally conductive material and is fastened by screws 52 and 53 to the metal chassis 6 of the lighter.
  • the electrodes 3 and 4 are connected to a conventional source of a high voltage.
  • the first electrode 3 is directly connected via the electrically conductive protective tube 5 and the metal chassis 6 to the negative pole of the high voltage source.
  • the second, outer electrode 4 passes through the insulating bushing 51 and is coupled via suitable switching means (not illustrated) to the positive pole of the voltage source.
  • the ignition electrodes 3 and 4 are attached to the arms of a U- shaped metal strip 6 which is secured at its intermediate portion by screws 61 and 62 to the chassis 6 of the lighter.
  • the negative, gas reflecting electrode 3 forms an integral part of one arm of the U-shaped strip 6', and projects into the central zone of the gas jet from the nozzle 1.
  • the other arm of the metal strip 6 supports the insulating bushing 51 which contains the positive electrode 4.
  • the metal strip 6' is of electrically and thermally conductive material and is secured to the chassis 6 in such a manner that the axis of the ignition electrodes 3 and 4 is perpendicular to the axis of the gas jet.
  • the negative electrode 3 which projects into the central zone of the gas jet and functions as a gas reflecting body insures in cooperation with the positive electrode 4 that is located outside the gas jet optimum conditions for reliable ignition of the gas.
  • the outlet nozzle 1 is made preferably of a temperature resistant insulating material and is set up on a torch valve, so that no electric discharge from the ignition electrodes can occur.
  • one of said electrodes extending substantially centrally into the zone of the gas jet discharged from said gas discharging means and intersecting the axial projection of said nozzle, thereby action as a gas reflecting body, the tip of the second ignition electrode being disposed outside said zone at such a position with respect to the tip of said one electrode as to define a spark-gap intersecting the region of gas reflected from said one electrode.
  • said predetermined distance between the tips of said electrodes being in the range of from about 0.5 mm to about 3 mm.
  • said gas lighter further comprising a protective tube coaxially arranged around said gas discharging means and said zone of the gas discharge, and said first and second ignition electrodes being supported on said protective tube.
  • said gas discharging means including a nozzle of insulating material.
  • one of said electrodes is disposed near said gas discharging means and extends substantially centrally into the zone of the gas jet discharged from said gas discharging means in such a manner as to cross the axis of said gas jet at a level of the top portion of the resulting lance shaped region of pure gas.
  • one of said electrodes extending substantially centrally into the zone of the gas jet discharged from said gas discharging means intersecting the axial projection of said nozzle, thereby acting as a gas reflecting body, the tip of the second ignition electrode being disposed outside said zone at a predetermined distance from the tip of said one electrode, a protective tube coaxially arranged around said gas discharging means and said zone of the gas discharge, said first and second ignition electrodes being supported on said protective tube, said protective tube including an insulating bushing, said first electrode being integral with the wall of said protective tube, and said second electrode being supported in said insulation bushing passing through said wall of said protective tube.
  • said metal piece including an insulating bushing, said first electrode being conductively connected with the other arm of said metal piece, and said insulating bushing supporting said second electrode.

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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)
US66290A 1969-08-23 1970-08-24 Arrangement of ignition electrodes of electrically ignited gas lighters Expired - Lifetime US3704085A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691943048 DE1943048A1 (de) 1969-08-23 1969-08-23 Elektrodenanordnung fuer elektrisch gezuendete Feuerzeuge

Publications (1)

Publication Number Publication Date
US3704085A true US3704085A (en) 1972-11-28

Family

ID=5743661

Family Applications (1)

Application Number Title Priority Date Filing Date
US66290A Expired - Lifetime US3704085A (en) 1969-08-23 1970-08-24 Arrangement of ignition electrodes of electrically ignited gas lighters

Country Status (8)

Country Link
US (1) US3704085A (de)
AT (1) AT301919B (de)
CH (1) CH516122A (de)
DE (1) DE1943048A1 (de)
ES (1) ES382907A1 (de)
FR (1) FR2059064A5 (de)
GB (1) GB1318451A (de)
NL (1) NL7012334A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263729A (en) * 1964-06-26 1966-08-02 Vyzk Ustav Prislusenstvi Motor Fuel ignitor arrangement for a heater
GB1158720A (en) * 1965-11-26 1969-07-16 Mansei Kogyo Kk Liquefied Gas Fueled Lighter
US3493313A (en) * 1967-07-31 1970-02-03 Ronson Corp Gas lighter
US3521987A (en) * 1967-08-03 1970-07-28 Mansei Kogyo Kk Electric gas lighter with manually operable piezoelectric ignition device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263729A (en) * 1964-06-26 1966-08-02 Vyzk Ustav Prislusenstvi Motor Fuel ignitor arrangement for a heater
GB1158720A (en) * 1965-11-26 1969-07-16 Mansei Kogyo Kk Liquefied Gas Fueled Lighter
US3493313A (en) * 1967-07-31 1970-02-03 Ronson Corp Gas lighter
US3521987A (en) * 1967-08-03 1970-07-28 Mansei Kogyo Kk Electric gas lighter with manually operable piezoelectric ignition device

Also Published As

Publication number Publication date
AT301919B (de) 1972-09-25
NL7012334A (de) 1971-02-25
FR2059064A5 (de) 1971-05-28
GB1318451A (en) 1973-05-31
CH516122A (de) 1971-11-30
DE1943048A1 (de) 1971-05-27
ES382907A1 (es) 1972-12-16

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