EP0165467B1 - Control valve for gas heated devices - Google Patents

Control valve for gas heated devices Download PDF

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Publication number
EP0165467B1
EP0165467B1 EP19850105972 EP85105972A EP0165467B1 EP 0165467 B1 EP0165467 B1 EP 0165467B1 EP 19850105972 EP19850105972 EP 19850105972 EP 85105972 A EP85105972 A EP 85105972A EP 0165467 B1 EP0165467 B1 EP 0165467B1
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EP
European Patent Office
Prior art keywords
housing part
central housing
control valve
opening
fitting according
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
EP19850105972
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German (de)
French (fr)
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EP0165467A3 (en
EP0165467A2 (en
Inventor
Josef Schmid
Helmut Abele
Karl Rilling
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Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Publication date
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Priority to AT85105972T priority Critical patent/ATE68867T1/en
Publication of EP0165467A2 publication Critical patent/EP0165467A2/en
Publication of EP0165467A3 publication Critical patent/EP0165467A3/en
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Publication of EP0165467B1 publication Critical patent/EP0165467B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/107—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using mechanical means, e.g. safety valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/26—Details

Definitions

  • the invention relates to a control valve according to the preamble of claim 1.
  • a pressure regulator is built into the central housing part and the gas connection openings are formed in the threaded connector of the central housing part.
  • the housing part is designed so that either the control magnet of an ignition fuse based on the ionization principle or the magnet insert and the operating elements of a thermoelectric ignition fuse can be attached, the entire structure of the valve is based on a concept that includes the pressure regulator. If a pressure regulator is not required in a specific application and the valve is used without this functional unit, deflections and relatively narrow channel sections remain in the gas flow path, which in this case unnecessarily increase the flow resistance. Due to the special design of the gas connections, the valve can also be connected to other functional units, e.g. a filter.
  • valve can be assembled in a modular system by individual modules, so that with a relatively small number of different modules all practically required combinations of functional units in a compact design and with little Have flow resistance established.
  • the housing parts on the opposite wall sections are provided with at least one projection and one recess, both the projections and the recesses being diametrically opposite one another and the projections and the wall sections adjoining the recesses having bores which are in the assembled position of the housing parts correspond to one another and through which fastening elements, preferably notch pins, accessible from the circumference of the housing parts engage.
  • the central housing part is designed for the installation of an ignition safety valve upstream of the control valve. Then only a pressure regulator or, when using liquid gas, a module with a main gas throttle needs to be attached to the central module formed in this way. If the modular system is also to contain a module with a filter which is to be connected upstream of all other functional units, it may be expedient to also include the pressure regulator module and the module containing the main gas throttle at both gas connection openings in the manner according to the invention to train. If no further functional units are connected downstream, an appropriately designed intermediate piece for a further conduit or a burner connecting piece can be attached to the outlet opening of the central module.
  • FIG. 1 shows a longitudinal section through the first exemplary embodiment before the individual modules are assembled
  • FIG. 2 shows a view in the direction of arrow A in FIG. 1
  • FIG. 3 shows a section along the line III-III in FIG. 2
  • FIG. 4 shows a longitudinal section through the second embodiment.
  • the valve according to Figures 1 to 3 has a central housing part 10 which is provided with an inlet opening 12 and an outlet opening 14 for the gas flowing through.
  • the housing part 10 has a transverse wall 16 and a longitudinal wall 18, in each of which a passage opening 20, 22 for the gas is formed on both sides of the transverse wall 16.
  • the housing part 10 has two installation openings 24 and 26, which are arranged coaxially to the through openings 20, 22.
  • the housing part 10 has an installation opening 28 which extends over both through openings 20, 22.
  • the passage opening 20 is monitored by a commercially available thermoelectric ignition safety valve 36, the magnet insert 38 of which is attached to a cover 40 which closes the inlet chamber 30.
  • the ignition safety valve 36 is also provided with a switch 42 and a switch 44, both of which are held and guided on a cover 46 which closes the installation opening 28.
  • the operation of the ignition safety valve 36 is known and is therefore not described in detail.
  • the passage opening 22 is monitored by a thermostatic control valve 48 which has a drive magnet 50 which acts on a closing member 54 in an abutting manner via a bolt 52.
  • the magnetic force is counteracted by a control spring 56 which is supported on a pressure piece 58 which is mounted on the cover 46 in an axially adjustable manner by means of an adjusting screw 60.
  • the housing part 10 described forms with the ignition safety valve 36 and the thermostatic control valve 48 a central function module, to which further function modules can be attached as required.
  • a pressure regulator 62 is attached to the central functional module, which has its own housing part 64, which is installed with the interposition of an O-ring 66 as a sealing element at the inlet opening 12 of the housing part 10.
  • the O-ring 66 comes to bear on both modules on an annular contact surface 68 which surrounds the opening edge 70 of the inlet opening 12 on the housing part 10 or the outlet opening 14 'of the pressure regulator 62.
  • the functional parts of the pressure regulator 62 are also constructed in a known manner and are therefore not described in detail.
  • a threaded connection piece 72 is formed on the housing part 64 of the pressure regulator 62 and surrounds an inlet opening 74 and a filter body 76 inserted therein.
  • the housing part 10 has a contact surface 78 for the housing part 64 which, viewed from the end, has approximately the shape of a rectangle, the width of which corresponds to the width of the housing part 10.
  • An equally large and identically shaped contact surface 79 is formed on the housing part 64 of the pressure regulator 62.
  • Fastening elements 89 'and 89 are provided for fastening the pressure regulator 62 to the housing part 10.
  • the housing part 10 is provided at two diametrically opposite corners outside the annular contact surface 68, each with a projection 80 (FIG. 3), which fits into a correspondingly arranged and designed recess 82 on the circumference of the contact surface 79 of the housing part 64.
  • the housing part 64 is provided with projections 80 'and the housing part 10 with matching recesses 82' at the two other, diametrically opposite corners of the contact surface 68.
  • Two grooved pins 84 are used to connect the housing parts 10 and 64, each of which extends over the entire height of the contact surfaces 78, 79 and therefore passes through a projection 80 and a projection 80 '.
  • This arrangement is made possible by the fact that the axes of the grooved pins 84 lie in the plane of the contact surfaces 78, 79 (parting line 81 indicated in FIG. 3) and the housing parts 10, 64 in the between the projections 80 and 80 'and the recesses 82'. or 82 lying areas are also provided with projections 86, 86 'and depressions 88, 88' which engage in a claw-like manner.
  • This configuration of the housing parts 10, 64 ensures that only two notch pins are required for fastening, that the two modules can be connected to one another in two positions offset by 180 °, and that the connecting means can also be used radially from the circumference of the housing parts .
  • a further function module, a connecting piece for a further line or a connecting piece for a burner can be connected to the outlet opening 14.
  • the control valve according to FIG. 4 has a main gas throttle 90, which is designed in the manner according to the invention already described and is attached to the inlet opening 12 of the housing part 10.
  • the main gas throttle 90 like the pressure regulator 62, is provided on the input side with a threaded connector for connecting a gas feed line.
  • the main gas throttle 90 could also be designed both at the inlet opening and at the outlet opening in the manner according to the invention, so that if the filter is designed as a module, it can also be attached to the fitting in a modular system.
  • the passage opening 20 in the housing part 10 is monitored by an actuating magnet 92 of an ignition safety device operating according to the ionization principle, which acts pulling on a closing element 93.
  • the actuating magnet 92 is provided with a sealing edge 93 which fits into the installation opening 24 and is fastened to the housing part 10 by indicated screws 94.
  • the second through opening 22 is monitored by a thermostatic control valve 48.
  • the intermediate chamber 32 of the housing part 10 is closed by a cover 94, which has the same shape as the cover 46, but the injection-molded guide bushes 96, 97 are not pierced because the mechanical controls are missing in this type of ignition protection.
  • an installation opening 24 of the housing part 10 is closed by a cover.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Control Of Fluid Pressure (AREA)
  • Details Of Valves (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

Control valve which is constructed from individual function modules according to the building block system. A central function module contains a thermostatic regulating valve (48), and a valve opening (20) and an installation opening (24) arranged coaxially therewith for a second function unit, in particular a safety pilot valve (36). Further modules, e.g. a pressure regulator (62), a main gas throttle (90) or a filter, can be built onto the central function module (double module) according to requirements. The individual modules are interconnected by fastening means (80, 84) which are accessible radially from the circumference of the module housings (10, 64). As a result, the assembly and the disassembly of the modules, even in conditions of confined space, can be made easier and the requirement for installation space for the valve in the heating device reduced.

Description

Stand der TechnikState of the art

Die Erfindung bezieht sich auf eine Regelarmatur nach der Gattung des Anspruchs 1.The invention relates to a control valve according to the preamble of claim 1.

Bei bekannten Regelarmaturen für Gasgeräte (DE-A1 30 31 115) ist in das zentrale Gehäuseteil ein Druckregler eingebaut und die Gasanschlußöffnungen sind in Gewindestutzen des zentralen Gehäuseteils gebildet. Obzwar das Gehäuseteil so ausgebildet ist, daß wahlweise der Stellmagnet einer auf dem Ionisationsprinzip beruhenden Zündsicherung oder der Magneteinsatz und die Bedienungsglieder einer thermoelektrischen Zündsicherung angebaut werden können, ist der gesamte Aufbau der Armatur doch auf ein den Druckregler einschließendes Konzept abgestellt. Wenn in einem bestimmten Anwendungsfall ein Druckregler nicht erforderlich ist und die Armatur ohne diese Funktionseinheit verwendet wird, verbleiben im Durchströmweg des Gases Umlenkungen und verhältnismäßig enge Kanalabschnitte, die in diesem Fall den Durchflußwiderstand unnötig erhöhen. Auch kann die Armatur wegen der speziellen Ausbildung der Gasanschlüsse durch zusätzliche Verbindungselemente mit weiteren Funktionseinheiten, wie z.B. einem Filter, verbunden werden.In known control valves for gas appliances (DE-A1 30 31 115), a pressure regulator is built into the central housing part and the gas connection openings are formed in the threaded connector of the central housing part. Although the housing part is designed so that either the control magnet of an ignition fuse based on the ionization principle or the magnet insert and the operating elements of a thermoelectric ignition fuse can be attached, the entire structure of the valve is based on a concept that includes the pressure regulator. If a pressure regulator is not required in a specific application and the valve is used without this functional unit, deflections and relatively narrow channel sections remain in the gas flow path, which in this case unnecessarily increase the flow resistance. Due to the special design of the gas connections, the valve can also be connected to other functional units, e.g. a filter.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Anordnung mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß die Armatur im Baukastensystem durch einzelne Module zusammengesetzt werden kann, so daß sich mit einer verhältnismäßig geringen Anzahl von unterschiedlichen Modulen alle praktisch geforderten Kombinationen von Funktionseinheiten in kompakter Bauweise und mit geringem Durchflußwiderstand herstellen lassen.The arrangement according to the invention with the characterizing features of claim 1 has the advantage that the valve can be assembled in a modular system by individual modules, so that with a relatively small number of different modules all practically required combinations of functional units in a compact design and with little Have flow resistance established.

Besonders vorteilhaft ist es, wenn die Gehäuseteile an den einander gegenüberliegenden Wandabschnitten mit mindestens einem Vorsprung und einer Ausnehmung versehen sind, wobei sowohl die Vorsprünge als auch die Ausnehmungen einander diametral gegenüberliegen und die Vorsprünge und die an die Ausnehmungen anschließenden Wandabschnitte Bohrungen haben, welche in Zusammenbaustellung der Gehäuseteile miteinander korrespondieren und durch welche vom Umfang der Gehäuseteile her zugängliche Befestigungselemente, vorzugsweise Kerbstifte, greifen.It is particularly advantageous if the housing parts on the opposite wall sections are provided with at least one projection and one recess, both the projections and the recesses being diametrically opposite one another and the projections and the wall sections adjoining the recesses having bores which are in the assembled position of the housing parts correspond to one another and through which fastening elements, preferably notch pins, accessible from the circumference of the housing parts engage.

Dadurch ist erreicht, daß an den Gehäuseteilen keine über das Querschnittsprofil des zentralen Gehäuseteils radial hinausragenden Befestigungsflansche vorgesehen werden müssen, die einen erhöhten Platzbedarf bedingen. Fenrer wird der Zusammenbau und das Auseinandernehmen der einzelnen, jeweils aus Funktionseinheit und zugehörigem Gehäuseteil bestehenden Module auch bei beengten Platzverhältnissen erleichtert.It is thereby achieved that no fastening flanges which protrude radially beyond the cross-sectional profile of the central housing part have to be provided on the housing parts and require an increased space requirement. The assembly and disassembly of the individual modules, each consisting of a functional unit and associated housing part, is made easier even in confined spaces.

Durch die in den abhängigen Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen der im Anspruch 1 angegebenen Anordnung möglich.The measures listed in the dependent claims allow advantageous developments of the arrangement specified in claim 1.

Die beiden Hauptfunktionen "Schalten" und "Regeln gemäß Wärmebedarf" kommen in den meisten Fällen gemeinsam vor. Die Erfindung schlägt deshalb weiter vor, daß das zentrale Gehäuseteil für den Einbau eines dem Regelventil vorgeschalteten Zündsicherungsventils ausgebildet ist. An den dadurch gebildeten zentralen Modul braucht dann nur ein Druckregler oder, bei Verwendung von Flüssiggas, ein Modul mit einer Hauptgasdrossel angebaut zu werden. Wenn das Baukastensystem auch einen Modul mit einem Filter enthalten soll, welcher allen anderen Funtkionseinheiten vorzuschalten ist, kann es zweckmäßig sein, auch den Druckreglermodul und den die Hauptgasdrossel enthaltenden Modul an beiden Gasanschlußöffnungen in der erfindungsgemäßen Weise auszubilden. An die Ausgangsöffnung des zentralen Moduls kann, wenn keine weiteren Funktionseinheiten nachgeschaltet werden, ein entsprechend ausgebildetes Zwischenstück für ein weiterführendes Leitungsrohr oder ein Brenner-Anschlußstutzen angesetzt werden.In most cases, the two main functions "switching" and "control according to heat demand" occur together. The invention therefore further proposes that the central housing part is designed for the installation of an ignition safety valve upstream of the control valve. Then only a pressure regulator or, when using liquid gas, a module with a main gas throttle needs to be attached to the central module formed in this way. If the modular system is also to contain a module with a filter which is to be connected upstream of all other functional units, it may be expedient to also include the pressure regulator module and the module containing the main gas throttle at both gas connection openings in the manner according to the invention to train. If no further functional units are connected downstream, an appropriately designed intermediate piece for a further conduit or a burner connecting piece can be attached to the outlet opening of the central module.

Weitere vorteilhafte Einzelheiten der Erfindung gehen aus den Unteransprüchen und aus der Beschreibung der Ausführungsbeispiele hervor.Further advantageous details of the invention emerge from the subclaims and from the description of the exemplary embodiments.

Zeichnungdrawing

Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 einen Längsschnitt durch das erste Ausführungsbeispiel vor dem Zusammenbau der einzelnen Module, Figur 2 eine Ansicht in Richtung des Pfeiles A in Figur 1, Figur 3 einen Schnitt nach der Linie III-III in Figur 2, und Figur 4 einen Längsschnitt durch das zweite Ausführungsbeispiel.Two embodiments of the invention are shown in the drawing and explained in more detail in the following description. FIG. 1 shows a longitudinal section through the first exemplary embodiment before the individual modules are assembled, FIG. 2 shows a view in the direction of arrow A in FIG. 1, FIG. 3 shows a section along the line III-III in FIG. 2, and FIG. 4 shows a longitudinal section through the second embodiment.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Die Armatur nach den Figuren 1 bis 3 hat ein zentrales Gehäuseteil 10, welches mit einer Eingangsöffnung 12 und einer Ausgangsöffnung 14 für das durchströmende Gas versehen ist. Im Inneren hat das Gehäuseteil 10 eine Querwand 16 und eine Längswand 18, in welcher zu beiden Seiten der Querwand 16 je eine Durchgangsöffnung 20, 22 für das Gas gebildet ist. An der oberen Seite weist das Gehäuseteil 10 zwei Einbauöffnungen 24 und 26 auf, die koaxial zu den Durchgangsöffnungen 20, 22 angeordnet sind. An der unteren Seite hat das Gehäuseteil 10 eine Einbauöffnung 28, die sich über beide Durchgangsöffnungen 20, 22 hinweg erstreckt. Wenn das Gehäuseteil 10 durch nachstehend noch näher beschriebene Mittel nach außen verschlossen ist, sind in seinem Inneren eine Eingangskammer 30, eine Zwischenkammer 32 und eine Ausgangskammer 34 gebildet.The valve according to Figures 1 to 3 has a central housing part 10 which is provided with an inlet opening 12 and an outlet opening 14 for the gas flowing through. Inside, the housing part 10 has a transverse wall 16 and a longitudinal wall 18, in each of which a passage opening 20, 22 for the gas is formed on both sides of the transverse wall 16. On the upper side, the housing part 10 has two installation openings 24 and 26, which are arranged coaxially to the through openings 20, 22. On the lower side, the housing part 10 has an installation opening 28 which extends over both through openings 20, 22. When the housing part 10 is closed to the outside by means described in more detail below, an inlet chamber 30, an intermediate chamber 32 and an outlet chamber 34 are formed in its interior.

Die Durchgangsöffnung 20 ist von einem handelsüblichen thermoelektrischen Zündsicherungsventil 36 überwacht, dessen Magneteinsatz 38 an einem die Eingangskammer 30 verschließenden Deckel 40 befestigt ist. Das Zündsicherungsventil 36 ist ferner mit einer Einschalttaste 42 und einer Ausschalttaste 44 versehen, die beide an einem Deckel 46 gehalten und geführt sind, welcher die Einbauöffnung 28 verschließt. Die Arbeitsweise des Zündsicherungsventils 36 ist bekannt und wird daher nicht näher beschrieben. Die Durchgangsöffnung 22 ist von einem thermostatischen Regelventil 48 überwacht, welches einen Antriebsmagneten 50 hat, der über einen Bolzen 52 stoßend auf ein Schließglied 54 einwirkt. Der Magnetkraft wirkt eine Regelfeder 56 entgegen, die sich an einem Druckstück 58 abstützt, welches über eine Einstellschraube 60 axial verstellbar am Deckel 46 gelagert ist.The passage opening 20 is monitored by a commercially available thermoelectric ignition safety valve 36, the magnet insert 38 of which is attached to a cover 40 which closes the inlet chamber 30. The ignition safety valve 36 is also provided with a switch 42 and a switch 44, both of which are held and guided on a cover 46 which closes the installation opening 28. The operation of the ignition safety valve 36 is known and is therefore not described in detail. The passage opening 22 is monitored by a thermostatic control valve 48 which has a drive magnet 50 which acts on a closing member 54 in an abutting manner via a bolt 52. The magnetic force is counteracted by a control spring 56 which is supported on a pressure piece 58 which is mounted on the cover 46 in an axially adjustable manner by means of an adjusting screw 60.

Das beschriebene Gehäuseteil 10 bildet mit dem Zündsicherungsventil 36 und dem thermostatischen Regelventil 48 einen zentralen Funktionsmodul, an welchen je nach Bedarf weitere Funktionsmodule angebaut werden können. Beim Ausführungsbeispiel nach Figur 1 ist an den zentralen Funktionsmodul ein Druckregler 62 angebaut, der ein eigenes Gehäuseteil 64 hat, welches unter Zwischenschaltung eines O-Ringes 66 als Dichtelement an die Eingangsöffnung 12 des Gehäuseteils 10 eingebaut ist. Der O-Ring 66 kommt dabei an beiden Modulen an je einer ringförmigen Anlagefläche 68 zur Anlage, die den Öffnungsrand 70 der Eingangsöffnung 12 am Gehäuseteil 10 bzw. der Ausgangsöffnung 14' des Druckreglers 62 umgibt. Die Funktionsteile des Druckreglers 62 sind ebenfalls in bekannter Weise aufgebaut und daher nicht näher beschrieben. Am Gehäuseteil 64 des Druckreglers 62 ist ein Gewindeanschlußstutzen 72 angeformt, welcher eine Eingangsöffnung 74 und einen darin eingesetzten Filterkörper 76 umschließt.The housing part 10 described forms with the ignition safety valve 36 and the thermostatic control valve 48 a central function module, to which further function modules can be attached as required. In the exemplary embodiment according to FIG. 1, a pressure regulator 62 is attached to the central functional module, which has its own housing part 64, which is installed with the interposition of an O-ring 66 as a sealing element at the inlet opening 12 of the housing part 10. The O-ring 66 comes to bear on both modules on an annular contact surface 68 which surrounds the opening edge 70 of the inlet opening 12 on the housing part 10 or the outlet opening 14 'of the pressure regulator 62. The functional parts of the pressure regulator 62 are also constructed in a known manner and are therefore not described in detail. A threaded connection piece 72 is formed on the housing part 64 of the pressure regulator 62 and surrounds an inlet opening 74 and a filter body 76 inserted therein.

Das Gehäuseteil 10 hat eine Anlagefläche 78 für das Gehäuseteil 64, die von der Stirnseite her gesehen etwa die Form eines Recktecks hat, dessen Breite der Breite des Gehäuseteils 10 entspricht. Am Gehäuseteil 64 des Druckreglers 62 ist eine gleich große und gleich geformte Anlagefläche 79 gebildet. Zum Befestigen des Druckreglers 62 am Gehäuseteil 10 sind Befestigungselemente 89' und 89 vorgesehen. Dazu ist das Gehäuseteil 10 an zwei diametral gegenüberliegenden Ecken außerhalb der ringförmigen Anlagefläche 68 mit je einem Vorsprung 80 versehen (Figur 3), der passend in eine entsprechend angeordnete und ausgebildete Vertiefung 82 am Umfang der Anlagfläche 79 des Gehäuseteils 64 greift. An den beiden anderen, sich diametal gegenüberliegenden Ecken der Anlagefläche 68 ist das Gehäuseteil 64 mit Vorsprüngen 80' und das Gehäuseteil 10 mit passenden Vertiefungen 82' versehen.The housing part 10 has a contact surface 78 for the housing part 64 which, viewed from the end, has approximately the shape of a rectangle, the width of which corresponds to the width of the housing part 10. An equally large and identically shaped contact surface 79 is formed on the housing part 64 of the pressure regulator 62. Fastening elements 89 'and 89 are provided for fastening the pressure regulator 62 to the housing part 10. For this purpose, the housing part 10 is provided at two diametrically opposite corners outside the annular contact surface 68, each with a projection 80 (FIG. 3), which fits into a correspondingly arranged and designed recess 82 on the circumference of the contact surface 79 of the housing part 64. The housing part 64 is provided with projections 80 'and the housing part 10 with matching recesses 82' at the two other, diametrically opposite corners of the contact surface 68.

Zum Verbinden der Gehäuseteile 10 und 64 dienen zwei Kerbstifte 84, von denen ein jeder sich über die gesamte Höhe der Anlageflächen 78, 79 erstreckt und daher einen Vorsprung 80, sowie einen Vorsprung 80' durchsetzt. Diese Anordnung wird dadurch möglich, daß die Achsen der Kerbstifte 84 in der Ebene der Anlageflächen 78, 79 (in Figur 3 angedeutete Trennfuge 81) liegen und die Gehäuseteile 10, 64 in den zwischen den Vorsprüngen 80 bzw. 80' und den Vertiefungen 82' bzw. 82 liegenden Bereichen ebenfalls mit Vorsprüngen 86, 86' und Vertiefungen 88, 88' versehen sind, welche klauenartig ineinander greifen. Durch diese Ausbildung der Gehäuseteile 10, 64 ist erreicht, daß nur zwei Kerbstifte zum Befestigen benötigt werden, daß die beiden Module in zwei um 180° zueinander versetzten Stellungen miteinander verbindbar sind, und daß ferner die Verbindungsmittel radial vom Umfang der Gehäuseteile her eingesetzt werden können.Two grooved pins 84 are used to connect the housing parts 10 and 64, each of which extends over the entire height of the contact surfaces 78, 79 and therefore passes through a projection 80 and a projection 80 '. This arrangement is made possible by the fact that the axes of the grooved pins 84 lie in the plane of the contact surfaces 78, 79 (parting line 81 indicated in FIG. 3) and the housing parts 10, 64 in the between the projections 80 and 80 'and the recesses 82'. or 82 lying areas are also provided with projections 86, 86 'and depressions 88, 88' which engage in a claw-like manner. This configuration of the housing parts 10, 64 ensures that only two notch pins are required for fastening, that the two modules can be connected to one another in two positions offset by 180 °, and that the connecting means can also be used radially from the circumference of the housing parts .

An die Ausgangsöffnung 14 kann ein weiterer Funktionsmodul, ein Verbindungsstutzen für eine weiterführende Leitung oder ein Anschlußstutzen für einen Brenner angeschlossen werden.A further function module, a connecting piece for a further line or a connecting piece for a burner can be connected to the outlet opening 14.

Die Regelarmatur nach Figur 4 hat anstelle eines Druckreglers eine Hauptgasdrossel 90, welche in der bereits beschriebenen erfindungsgemäßen Weise ausgebildet und an die Eingangsöffnung 12 des Gehäuseteils 10 angesetzt ist. Die Hauptgasdrossel 90 ist wie der Druckregler 62 auf der Eingangsseite mit einem Gewindestutzen zum Anschließen einer Gaszuleitung versehen. Bei Verwendung eines vorgeschalteten Filters, z.B. im Zusammenhang mit Gasgebläsebrennern, könnte jedoch auch die Hauptgasdrossel 90 sowohl an der Eingangsöffnung als auch an der Ausgangsöffnung in der erfindungsgemäßen Weise ausgebildet sein, so daß bei entsprechender Ausbildung des Filters als Modul auch diese im Baukastensystem an die Armatur angesetzt werden kann.Instead of a pressure regulator, the control valve according to FIG. 4 has a main gas throttle 90, which is designed in the manner according to the invention already described and is attached to the inlet opening 12 of the housing part 10. The main gas throttle 90, like the pressure regulator 62, is provided on the input side with a threaded connector for connecting a gas feed line. When using an upstream filter, e.g. in connection with gas-blown burners, however, the main gas throttle 90 could also be designed both at the inlet opening and at the outlet opening in the manner according to the invention, so that if the filter is designed as a module, it can also be attached to the fitting in a modular system.

Die Durchgangsöffnung 20 im Gehäuseteil 10 ist von einem Stellmagneten 92 einer nach dem Ionisationsprinzip arbeitenden Zündsicherungseinrichtung überwacht, welcher ziehend auf ein Schließglied 93 einwirkt. Der Stellmagnet 92 ist mit einem passend in die Einbauöffnung 24 eingreifenden Dichtrand 93 versehen und durch angedeutete Schrauben 94 am Gehäuseteil 10 befestigt. Die zweite Durchgangsöffnung 22 ist wie beim ersten Ausführungsbeispiel von einem thermostatischen Regelventil 48 überwacht. Die Zwischenkammer 32 des Gehäuseteils 10 ist von einem Deckel 94 verschlossen, welcher die gleiche Form wie der Deckel 46 hat, dessen angespritzte Führungsbuchsen 96, 97 jedoch nicht durchbohrt sind, weil bei dieser Art von Zündsicherung die mechanischen Bedienungselemente fehlen.The passage opening 20 in the housing part 10 is monitored by an actuating magnet 92 of an ignition safety device operating according to the ionization principle, which acts pulling on a closing element 93. The actuating magnet 92 is provided with a sealing edge 93 which fits into the installation opening 24 and is fastened to the housing part 10 by indicated screws 94. As in the first exemplary embodiment, the second through opening 22 is monitored by a thermostatic control valve 48. The intermediate chamber 32 of the housing part 10 is closed by a cover 94, which has the same shape as the cover 46, but the injection-molded guide bushes 96, 97 are not pierced because the mechanical controls are missing in this type of ignition protection.

Bei Verwendung der beschriebenen Systemteile zum Bilden einer Regelarmatur ohne Zündsicherungsventil wird eine Einbauöffnung 24 des Gehäuseteils 10 durch einen Deckel verschlossen.When using the described system parts to form a control valve without an ignition safety valve, an installation opening 24 of the housing part 10 is closed by a cover.

Claims (9)

  1. Control fitting for gas devices having a control valve, which is attached to a central housing part (10), is controlled by a heat requirement signal and forms a first functional unit, the central housing part being provided at two opposite sides with connection openings (12, 14) for the gas flowing through and at two other opposite sides with installation openings for actuators of the control valve, and having a second functional unit, which both act on the cross-section of through-openings arranged in the housing interior, and the control fitting being assigned at least one further functional unit such as pressure governor, throttle valve, ignition safety valve and filter, characterised in that the central housing part (10) is provided at the connection openings (12, 14) with a bearing surface (68), surrounding the opening edge (70), for a sealing element (66) and outside the bearing surface (68) with at least one projection (80, 86) relative to the bearing surface (68) and one recess (82, 88) respectively on opposite sides of the connection opening (12), both the projections (80, 86) and the recesses (82', 88) being diametrically opposite one another, in that, moreover, each further functional unit (62, 90) is assigned its own housing part (64) which is likewise provided at least at one connection opening (14') with a bearing surface (68), surrounding the opening edge (70), for the sealing element (66) and outside the bearing surface (68) with at least one projection (80', 86') relative to the bearing surface (68) and one recess (82, 88') respectively on opposite sides of the connection opening (14') both the projections (80', 86') and the recesses (82, 88') being diametrically opposite one another, in that the projections (80, 80', 86, 86') and recesses (82, 82', 88, 88') of the central housing part (10) and of the housing part (64) of each further functional unit (62, 90) interlock in a fitting fashion in the assembly position, and in that the projections (80, 80', 86, 86') have bores which correspond to one another in the assembly position and through which individual mounting parts (84), preferably grooved pins, accessible from the circumference of the housing parts (10, 64) engage.
  2. Fitting according to Claim 1, characterised in that the projections (80, 80', 86') and recesses (82, 82', 88, 88') of the housing parts (10, 64) are constructed such that the housing parts (10, 64) can be connected to one another in any combination and preferably in at least two different angular positions in each case.
  3. Fitting according to Claim 1 or 2, characterised in that the central housing part (10) is constructed for the installation of an ignition safety valve (36) upstream of the control valve (48).
  4. Fitting according to Claim 3, characterised in that the central housing part (10) is constructed such that it is optionally possible to attach an operating magnet (92) of an ignition fuse working in accordance with the ionisation principle, or the magnet insert (38) and the mechanical operating members (42, 44) of a thermoelectric ignition fuse.
  5. Fitting according to Claim 4, characterised in that the central housing part (10) is provided on one side with installation openings (24, 26), which are arranged coaxially with the through-openings (20, 22) and of which one (26) is closed by the drive element (50) of the control valve (48), and the other (24) is constructed for optionally attaching the operating magnet (92) or a cover (40) supporting the magnet insert (38), and in that, moreover, the central housing part (10) is provided on the other side with a single installation opening (28), which extends over the two through-openings (20, 22) and is closed by a common cover (46, 95), which supports the adjusting means (58, 60) for the control valve spring (56) and has means for guiding the operating members (42, 44) of the thermoelectric ignition fuse.
  6. Fitting according to one of the preceding claims, having a pressure governor, characterised in that the pressure governor (62) is installed in a housing part (64) applied to the inlet opening (12) of the central housing part (10).
  7. Fitting according to one of Claims 1 to 5, having a permanently adjustable main gas throttle, characterised in that the main gas throttle (90) is installed in a housing part applied to the inlet opening (12) of the central housing part (10).
  8. Fitting according to one of the preceding claims, having a filter upstream of all the functional units, characterised in that the filter is installed in a housing part which is or can be applied to the inlet opening of the central housing part (10) or of a housing part (64), attached on the inlet side to the housing part (10), of a further functional module.
  9. Fitting according to one of the preceding claims, characterised in that a connecting piece is provided which is provided at one end face with a connecting flange corresponding to the housing parts (10, 64), and at the other end face with means for connecting a gas pipe or a gas burner.
EP19850105972 1984-06-16 1985-05-15 Control valve for gas heated devices Expired - Lifetime EP0165467B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85105972T ATE68867T1 (en) 1984-06-16 1985-05-15 CONTROL FITTING FOR GAS APPLIANCES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843422416 DE3422416A1 (en) 1984-06-16 1984-06-16 CONTROL UNIT FOR GAS APPLIANCES
DE3422416 1984-06-16

Publications (3)

Publication Number Publication Date
EP0165467A2 EP0165467A2 (en) 1985-12-27
EP0165467A3 EP0165467A3 (en) 1987-10-21
EP0165467B1 true EP0165467B1 (en) 1991-10-23

Family

ID=6238520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850105972 Expired - Lifetime EP0165467B1 (en) 1984-06-16 1985-05-15 Control valve for gas heated devices

Country Status (3)

Country Link
EP (1) EP0165467B1 (en)
AT (1) ATE68867T1 (en)
DE (2) DE3422416A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012122C2 (en) * 1990-04-14 1998-07-02 Gok Gmbh & Co Kg Gas filter with exchangeable filter insert
AT401618B (en) * 1995-05-02 1996-10-25 Heat Waermetechnische Anlagen GAS FITTING
ES1050953Y (en) * 2002-01-18 2002-10-01 Fagor S Coop GAS THERMOSTATIC VALVE WITH A PRESSURE REGULATOR

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1601317A1 (en) * 1968-02-14 1970-12-10 Junkers & Co Gas valve
FR2315662A1 (en) * 1975-06-24 1977-01-21 Cattai Sergio Gas burner suitable for various types of gas - has pressure regulator adjustable for varying conditions
US4188013A (en) * 1977-08-08 1980-02-12 Honeywell Inc. Gas valve seating member
DE3031115A1 (en) * 1980-08-16 1982-04-22 Robert Bosch Gmbh, 7000 Stuttgart GAS FITTING, ESPECIALLY FOR HEATER AND BOILER
DE3234296A1 (en) * 1982-09-16 1984-03-22 Robert Bosch Gmbh, 7000 Stuttgart Gas valve, in particular for heating furnaces and heating boilers

Also Published As

Publication number Publication date
EP0165467A3 (en) 1987-10-21
DE3584474D1 (en) 1991-11-28
ATE68867T1 (en) 1991-11-15
EP0165467A2 (en) 1985-12-27
DE3422416A1 (en) 1985-12-19

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