EP0434482A1 - Positionierungs- und Zentrierungsvorrichtung für Pilotbrenner und -zünder an eine Einspritzleitung für Gasbrenner - Google Patents

Positionierungs- und Zentrierungsvorrichtung für Pilotbrenner und -zünder an eine Einspritzleitung für Gasbrenner Download PDF

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Publication number
EP0434482A1
EP0434482A1 EP90403255A EP90403255A EP0434482A1 EP 0434482 A1 EP0434482 A1 EP 0434482A1 EP 90403255 A EP90403255 A EP 90403255A EP 90403255 A EP90403255 A EP 90403255A EP 0434482 A1 EP0434482 A1 EP 0434482A1
Authority
EP
European Patent Office
Prior art keywords
pilot
tube
positioning
igniter
support
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.)
Granted
Application number
EP90403255A
Other languages
English (en)
French (fr)
Other versions
EP0434482B1 (de
Inventor
Daniel Miteaud
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.)
Saunier Duval Eau Chaude Chauffage SDECC SA
Original Assignee
Saunier Duval Eau Chaude Chauffage SDECC SA
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 Saunier Duval Eau Chaude Chauffage SDECC SA filed Critical Saunier Duval Eau Chaude Chauffage SDECC SA
Publication of EP0434482A1 publication Critical patent/EP0434482A1/de
Application granted granted Critical
Publication of EP0434482B1 publication Critical patent/EP0434482B1/de
Anticipated expiration legal-status Critical
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
    • F23Q9/00—Pilot flame igniters
    • F23Q9/02—Pilot flame igniters without interlock with main fuel supply
    • F23Q9/04—Pilot flame igniters without interlock with main fuel supply for upright burners, e.g. gas-cooker burners

Definitions

  • the invention relates to the assembly constituted by a pilot light and its igniter intended for the ignition of the burner of a heating and / or domestic hot water production appliance using gas and more specifically relates to a positioning and centering said assembly.
  • the injection of gas into the arms of the burner is done from an injection ramp which carries the series of injectors and which is supplied with gas through an intake manifold.
  • This ramp is advantageously arranged horizontally at the front of the device so as to be accessible and easily removable.
  • the assembly which constitutes the small pilot tube and the igniter which is associated therewith is placed on this ramp so that the pilot orifice is located above the gas outlets of the burner arms.
  • the igniter is integral with the pilot tube so that its electrode is near the pilot orifice.
  • This assembly is positioned, in the usual way, in cradles which are part of the body of the ramp itself, and once positioned it is simply held there by a small leaf spring hook. We therefore remove or replace the pilot very easily in position on the ramp.
  • the positioning difficulties are due to the fact that the cradle (s) against which the pilot light tube is applied do not prevent the rotation of the latter and do not rigorously fix its correct positioning in height.
  • the invention therefore provides a solution to this problem in that it allows, by a simple modification of the pilot light support, to ensure that the positioning and centering of the pilot and igniter assembly is always correctly ensured even by a user. not attentive.
  • the invention therefore relates to a device for positioning and centering the assembly consisting of a pilot light and its igniter on a gas injection manifold at a burner having cradles formed by notches constituting suitable abutments to receive the pilot tube, said tube carrying a collar allowing its positioning, device according to which, at least one support stop for the cradle comprises machined or molded parts ensuring the immobilization in rotation of said pilot tube, according to which also at least one rib attached to the cradle opposes the bad positioning in height of the tube, an additional means being associated with the pilot-igniter assembly to guarantee the correct positioning of the thermocouple.
  • the support stop is hollowed out with a horizontal groove comprising two straight and parallel machined parts forming the sides of the notches constituting the cradle, and a rounded part forming the bottom, and in parallel, the collar for positioning the pilot tube has opposite straight lateral sides and a rounded front part.
  • the rib extends horizontally on one of the sides of the indentations between the support stop and an upper flat serving as an upper support point for the pilot tube.
  • the complementary means consists of a guide fork substantially parallel to the stirrup serving as a support for the thermocouple, said guide fork forming part of the assembly bar of the pilot tube and of the igniter.
  • Figure 1 shows the assembly consisting of a pilot tube 2 and its igniter 3 in abutment against an injection rail designated as a whole by the reference 1 - which distributes gas from the pipe 20 to burner rails 4 by means of injectors 5.
  • a thermocouple 6 is engaged in a support bracket 7 so that its head 8 is at the level of the igniter electrode, substantially above the outlet of the tube pilot 2.
  • the pilot 2 is a section of bent tube whose inlet at the bottom is in communication with the atmosphere for the admission of primary air.
  • a small gas inlet pipe 9 opening above and near this inlet opening of the tube 2 is also held against a positioning bracket 18 forming part of the injection rail 1.
  • the pilot and igniter tube assembly therefore comes into abutment against a cradle 10 secured to the injection rail 1.
  • This cradle is better visible in FIGS. 2, and 3 consists of a flat 11 serving as an upper support point. for the pilot tube 2, and ending with a round or not rounded notch 12, in which the current part of the tube 2 is applied, and it also consists of a support stop 13, substantially at the level of the injection rail, itself provided with a rounded notch 14.
  • This stop is of sufficient thickness to be hollowed out in the middle by a horizontal groove 15, deeper than the notch 14, which it separates in two separate beaks.
  • This groove 15 has a particular profile, shown in Figure 4, which essentially comprises two parallel rectilinear machined parts 16 forming the sides of the spout and a rounded support part 17 forming the bottom.
  • the collar 21 is intended to be placed in the groove 15 between the two nozzles of the notch 14, while the pilot tube itself is pressed against the upper flat 11.
  • the collar immobilizes and positions the pilot tube 2 in height.
  • the two sides 22 of the collar 21 then come to bear against the straight parts 16 of the groove 15. Therefore the tube 2 is perfectly immobilized in rotation and the pilot head is centered and correctly oriented with respect to the burner rails.
  • thermocouple 6 is engaged in the bracket 7. So that its head 8 can not tilt laterally, that is to say move away from one side or the other, from the pilot flame outlet orifice, there is provided a guide fork 23 substantially parallel to the stirrup, and open upwards, which forms part of the assembly bar of the pilot tube 2 and the igniter 3.
  • the fork is automatically perfectly positioned, and also readjusts or maintains the thermocouple head in a completely correct position.
  • the invention is not limited to the example of embodiment described, but also encompasses variants thereof.
  • a pilot tube 2 of circular section with rectilinear machined parts one could use a tube of square section at least in the area of the support cradles, which would not exclude that the tube has a height positioning collar.
  • the machined parts 15, 16 therefore form part of this square section of the pilot tube.

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)
  • Lighters Containing Fuel (AREA)
EP19900403255 1989-11-20 1990-11-19 Positionierungs- und Zentrierungsvorrichtung für Pilotbrenner und -zünder an eine Einspritzleitung für Gasbrenner Expired - Lifetime EP0434482B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8915168 1989-11-20
FR8915168A FR2654805B1 (fr) 1989-11-20 1989-11-20 Dispositif de positionnement et de centrage de l'ensemble constitue par une veilleuse et son allumeur sur une rampe d'injection de gaz a un bruleur.

Publications (2)

Publication Number Publication Date
EP0434482A1 true EP0434482A1 (de) 1991-06-26
EP0434482B1 EP0434482B1 (de) 1994-05-11

Family

ID=9387540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900403255 Expired - Lifetime EP0434482B1 (de) 1989-11-20 1990-11-19 Positionierungs- und Zentrierungsvorrichtung für Pilotbrenner und -zünder an eine Einspritzleitung für Gasbrenner

Country Status (4)

Country Link
EP (1) EP0434482B1 (de)
DE (1) DE69008830T2 (de)
ES (1) ES2053148T3 (de)
FR (1) FR2654805B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208505A (en) * 1962-01-03 1965-09-28 Robertshaw Controls Co Holders for pilot burners, thermocouples and the like
DE2000813A1 (de) * 1969-01-09 1970-07-23 Saunier Duval Zuendflammenbrenner fuer schnellerhitzte Gasboiler und Gasbadeoefen
FR2423723A1 (fr) * 1978-04-20 1979-11-16 Saunier Duval Dispositif d'allumage et de securite a veilleuse metastable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208505A (en) * 1962-01-03 1965-09-28 Robertshaw Controls Co Holders for pilot burners, thermocouples and the like
DE2000813A1 (de) * 1969-01-09 1970-07-23 Saunier Duval Zuendflammenbrenner fuer schnellerhitzte Gasboiler und Gasbadeoefen
FR2423723A1 (fr) * 1978-04-20 1979-11-16 Saunier Duval Dispositif d'allumage et de securite a veilleuse metastable

Also Published As

Publication number Publication date
FR2654805A1 (fr) 1991-05-24
ES2053148T3 (es) 1994-07-16
FR2654805B1 (fr) 1992-03-13
DE69008830T2 (de) 1994-11-24
DE69008830D1 (de) 1994-06-16
EP0434482B1 (de) 1994-05-11

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