DE1104467B - Thermoelectric fuse, especially for gas water heaters - Google Patents

Thermoelectric fuse, especially for gas water heaters

Info

Publication number
DE1104467B
DE1104467B DEV18033A DEV0018033A DE1104467B DE 1104467 B DE1104467 B DE 1104467B DE V18033 A DEV18033 A DE V18033A DE V0018033 A DEV0018033 A DE V0018033A DE 1104467 B DE1104467 B DE 1104467B
Authority
DE
Germany
Prior art keywords
lever
valve
water heaters
gas water
thermoelectric
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.)
Pending
Application number
DEV18033A
Other languages
German (de)
Inventor
Hans Puetz
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.)
Vaillant GmbH
Original Assignee
Joh Vaillant GmbH and Co
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 Joh Vaillant GmbH and Co filed Critical Joh Vaillant GmbH and Co
Priority to DEV18033A priority Critical patent/DE1104467B/en
Priority to GB465861A priority patent/GB941416A/en
Priority to FR7080A priority patent/FR1279112A/en
Priority to BE600099A priority patent/BE600099A/en
Publication of DE1104467B publication Critical patent/DE1104467B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23QIGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00Pilot flame igniters
    • F23Q9/08Pilot flame igniters with interlock with main fuel supply
    • F23Q9/12Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame
    • F23Q9/14Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame using electric means, e.g. by light-sensitive elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/36Valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Magnetically Actuated Valves (AREA)

Description

Thermoelektrische Zündsicherung, insbesondere für Gaswassererhitzer Die Erfindung betrifft einen thermoelektrischen Gasschalter, insbesondere für Gaswassererhitzer. Bekanntlich wird bei einem thermoelektrischen Gasschalter durch ein handbetätigtes Glied der Anker eines von der Zündflamme thermoelektrisch erregten Magnets an dessen Pole angedrückt und durch den erregten Elektromagnet ein mit dem Hebel in Verbindung stehender Ventilverschlußkörper gegen die Wirkung einer Ventilschließfeder offengehalten. Es ist bereits bekannt, den Andruck des Magnetankers und das Öffnen des Ventilverschlußkörpers durch Vermittlung eines Hebels als Zwischenglied vorzunehmen. Bei allen bekannten thermoelektrischen Gasschaltern besteht die Schwierigkeit, daß die Kraft der Ventilschließfeder nicht größer sein kann als die Haltekraft des thermoelektrisch erregten Magnets. Man mußte sich daher bei Anwendung eines thermoelektrischen Gasschalters mit einer relativ kleinen Schließkraft der Ventilfeder begnügen, die häufig keinen sicheren Abschluß des Ventildurchganges gewährleisten konnte. Diese Schwierigkeit wird erfindungsgemäß unter an sich bekannter Anwendung eines Hebels als Zwischenglied dadurch behoben, daß der Abstützpunkt des Ventilverschlußkörpers auf einem kürzeren und der Angriffspunkt des Magnetankers auf einem längeren Arm des Hebels liegt.Thermoelectric ignition fuse, especially for gas water heaters The invention relates to a thermoelectric gas switch, in particular for gas water heaters. It is known that in a thermoelectric gas switch by a hand-operated Link the armature of a magnet thermoelectrically excited by the pilot flame to it Poles pressed on and connected to the lever by the energized electromagnet standing valve closure body held open against the action of a valve closing spring. It is already known the pressure of the armature and the opening of the valve closure body through the intermediary of a lever as an intermediate link. With all known thermoelectric gas switches have the difficulty that the force of the valve closing spring cannot be greater than the holding force of the thermoelectrically excited magnet. You therefore had to use a thermoelectric gas switch with a Relatively small closing force of the valve spring content, which is often no safe Could ensure completion of the valve passage. This difficulty becomes present in accordance with the invention fixed with the known use of a lever as an intermediate link, that the support point of the valve closure body on a shorter one and the point of application of the armature lies on a longer arm of the lever.

Bei einer solchen Anordnung kann die Kraft der Ventilschließfeder im Verhältnis der Hebelarmübersetzung größer sein als die Haltekraft des Magnets. Der Hebel kann dabei sowohl ein- als auch zweiarmig oder als Winkelhebel ausgebildet sein.With such an arrangement, the force of the valve closing spring the ratio of the lever arm translation must be greater than the holding force of the magnet. The lever can be designed with one or two arms or as an angle lever be.

Ein Ausführungsbeispiel der Erfindung ist in der Abbildung schematisch dargestellt.An embodiment of the invention is shown schematically in the figure shown.

In einem Ventilgehäuse 1, dem das Gas in der Pfeilrichtung zuströmt, ist ein Ventilsitz 2 vorgesehen, auf dem ein Ventilteller 3 unter dem Einfluß des Gasdruckes und der Kraft einer Ventilschließfeder 4 abdichtend aufliegt. Der Schaft 3' des Ventiltellers 3 stützt sich am kürzeren Hebelarm eines im Ventilgehäuse 1 bei 5' schwenkbar gelagerten Hebels 5 ab. Am langen Hebelende des Hebels 5 ist der Schaft 6' eines Magnetankers 6 angelenkt, der im Ventilgehäuse 1 axial geführt ist. In einer vom Gasraum des Ventilgehäuses 1 getrennten Kammer 1' ist ein Elektromagnet 7 untergebracht, der von einem nicht dargestellten, von der Zündflamme beheizten Thermoelement thermoelektrisch erregbar ist. Durch eine im Ventilgehäuse 1 axial geführte Drucktaste 8, die unter dem Einfluß einer Rückholfeder 9 steht, kann der Hebel 5 im Uhrzeigersinn geschwenkt werden. Dabei wird durch den Ventilschaft 3' der Ventilteller 3 vom Sitz 2 abgehoben, gleichzeitig aber der Anker 6 an die Pole des Elektromagnets 7 angelegt. Beim Loslassen der Drucktaste 8 geht diese unter dem Einfluß der Rückholfeder 9 in ihre Ausgangslage zurück, während der Hebel s bei erregtem Elektromagnet 7 festgehalten wird und das Tellerventil 2/3 offen bleibt. Da sich der Ventilschaft 3' am kürzeren Arm des Hebels 5 abstützt, kann die Schließkraft der Ventilfeder 4 erheblich, nämlich im Verhältnis der Hebelarmlängen, größer sein als die Haltekraft des Elektromagnets 7, die ja über den Magnetanker 6 am längeren Arm des Hebels 5 angreift. Die Schließkraft des Tellerventils 2/3, die. von der Ventilfeder 4 und vom Gasdruck aufgebracht wird, kann also so gewählt werden, daß unter allen Umständen eine sichere Abdichtung des Ventildurchganges gewährleistet ist.In a valve housing 1, to which the gas flows in the direction of the arrow, a valve seat 2 is provided on which a valve disk 3 under the influence of the Gas pressure and the force of a valve closing spring 4 rests sealingly. The shaft 3 ′ of the valve disk 3 is supported on the shorter lever arm of one in the valve housing 1 at 5 'pivotably mounted lever 5. At the long lever end of the lever 5 is the Articulated shaft 6 'of a magnet armature 6 which is axially guided in valve housing 1. An electromagnet is located in a chamber 1 'which is separate from the gas space of the valve housing 1 7 housed, the heated by a pilot flame, not shown Thermocouple is thermoelectrically excitable. By one in the valve housing 1 axially guided push button 8, which is under the influence of a return spring 9, the Lever 5 can be swiveled clockwise. The valve stem 3 ' the valve plate 3 lifted from the seat 2, but at the same time the armature 6 to the poles of the electromagnet 7 applied. When the push button 8 is released, it goes under the influence of the return spring 9 back to its original position, while the lever s is held when the electromagnet 7 is energized and the poppet valve 2/3 remains open. Since the valve stem 3 'is supported on the shorter arm of the lever 5, the closing force the valve spring 4 be considerably larger, namely in the ratio of the lever arm lengths than the holding force of the electromagnet 7, which is longer than the armature 6 Arm of the lever 5 attacks. The closing force of the poppet valve 2/3 that. of the Valve spring 4 and is applied by the gas pressure, can therefore be chosen so that a secure sealing of the valve passage is guaranteed under all circumstances is.

Claims (1)

PATENTANSPRUCH: Thermoelektrischer Gasschalter, insbesondere für Gaswassererhitzer, bei dem durch ein handbetätigtes Glied unter Vermittlung eines Hebels der Anker eines von der Zündflamme thermoelektrisch erregten Magnets an dessen Pole andrückbar und ein mit dem Hebel in Verbindung stehender Ventilverschlußkörper gegen die Wirkung einer Ventilschließfeder offengehalten wird, dadurch gekennzeichnet, daß der Abstützpunkt des Ventilverschlußkörpers (3) auf einem kürzeren und der Angriffspunkt des Magnetankers (6) auf einem längeren Arm des Hebels (5) liegt.PATENT CLAIM: Thermoelectric gas switch, especially for gas water heaters, in which the anchor is operated by a hand-operated link with the aid of a lever a magnet thermoelectrically excited by the pilot flame can be pressed against its pole and a valve closure body connected to the lever against the action a valve closing spring is kept open, characterized in that the support point of the valve closure body (3) on a shorter one and the point of application of the magnet armature (6) lies on a longer arm of the lever (5).
DEV18033A 1960-02-11 1960-02-11 Thermoelectric fuse, especially for gas water heaters Pending DE1104467B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEV18033A DE1104467B (en) 1960-02-11 1960-02-11 Thermoelectric fuse, especially for gas water heaters
GB465861A GB941416A (en) 1960-02-11 1961-02-08 Thermoelectric gas burner ignition safety device
FR7080A FR1279112A (en) 1960-02-11 1961-02-09 Thermoelectric safety ignition system, in particular for water heating devices
BE600099A BE600099A (en) 1960-02-11 1961-02-10 Thermoelectric safety ignition installation, in particular for water heating devices.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV18033A DE1104467B (en) 1960-02-11 1960-02-11 Thermoelectric fuse, especially for gas water heaters

Publications (1)

Publication Number Publication Date
DE1104467B true DE1104467B (en) 1961-04-13

Family

ID=7576795

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV18033A Pending DE1104467B (en) 1960-02-11 1960-02-11 Thermoelectric fuse, especially for gas water heaters

Country Status (1)

Country Link
DE (1) DE1104467B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2754496A1 (en) * 1976-12-07 1978-06-08 Bourguignonne De Mecanique Cle GAS VALVE WITH SAFETY IGNITION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2754496A1 (en) * 1976-12-07 1978-06-08 Bourguignonne De Mecanique Cle GAS VALVE WITH SAFETY IGNITION

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