EP1464899B1 - Sealing system for a heating radiator - Google Patents

Sealing system for a heating radiator Download PDF

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Publication number
EP1464899B1
EP1464899B1 EP04005938A EP04005938A EP1464899B1 EP 1464899 B1 EP1464899 B1 EP 1464899B1 EP 04005938 A EP04005938 A EP 04005938A EP 04005938 A EP04005938 A EP 04005938A EP 1464899 B1 EP1464899 B1 EP 1464899B1
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EP
European Patent Office
Prior art keywords
sealing
pressure element
pin
sealing system
pressure
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
EP04005938A
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German (de)
French (fr)
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EP1464899A2 (en
EP1464899A3 (en
Inventor
Hans-Peter Weschle
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.)
Zehnder Group International AG
Original Assignee
Zehnder Verkaufs und Verwaltungs AG
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Publication date
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Priority to PL04005938T priority Critical patent/PL1464899T3/en
Publication of EP1464899A2 publication Critical patent/EP1464899A2/en
Publication of EP1464899A3 publication Critical patent/EP1464899A3/en
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Publication of EP1464899B1 publication Critical patent/EP1464899B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/0002—Means for connecting central heating radiators to circulation pipes
    • F24D19/0073—Means for changing the flow of the fluid inside a radiator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F28D1/0325—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators

Definitions

  • the invention relates to a sealing system according to the preamble of claim 1.
  • Such a sealing system is known in the art. With such a sealing system, it is possible to seal the basic elements of a radiator with little technical effort against each other. In this case, for example, the overflow between the element provided with the Edelstoffvorlauf basic element and the adjacent base element in the foot area with a pressed disc completely closed and provided in Kochström Kunststoff the head area with a pressed-sealing ring, the Schuffenfluß is regulated by a valve.
  • Such a sealing system is used for example in the EP 1 243 887 A1 described.
  • the sealing of the overflow opening takes place in the present sealing system characterized in that a sealing body is pressed by a pressure element and a sealing pin with pressure from one side to the surrounding the overflow edge. Due to the fact that the sealing body is preferably formed of a permanently elastic material, a medium-tight sealing of the overflow opening is achieved.
  • the sealing body is formed in this case as a sealing ring. In this case, the sealing ring opening is additionally sealed in order to secure a unidirectional flow of the heating medium.
  • the sealing of the overflow opening is achieved by means of a sealing system.
  • This sealing system has at least one sealing body, a pressure element and a sealing pin.
  • the sealing body is designed as a sealing ring with a defined passage opening
  • the sealing pin has an end face
  • the pressure element has at least a flat area with an opposite the end face of the Abdichtchanes enlarged diameter.
  • the pressure element is arranged between the sealing ring and sealing pin, wherein the sealing pin is introduced through an opening opposite the sealed overflow opening.
  • the seal sealing the sealing ring opening is located between the pressure element and the end face of the Abdichtstartes, that is, the sealing of the sealing ring opening exclusively by the axial contact between seal and pressure element on the one hand, or end face of the Abdichtrichs on the other hand. Therefore, it can already at a slight unwanted loss of the Sealing pin pressing force, for example, by an unwanted loosening or loosening of the sealing pin during operation, come to a loss of sealing effect of the seal. Furthermore, the surface over which the contact pressure is transmitted from the sealing pin to the pressure element, relatively small, so that it could also come to material fatigue.
  • the sealing body When installing the sealing system, the sealing body must first be arranged in the region of the overflow opening. The total diameter of the sealing body is greater than that of the overflow opening. The sealing body can be bent due to its elastic properties during assembly, so that it is guided in a bent state by the overflow opening opposite opening and inserted into the overflow. It is therefore not possible that preassembled pressure element to introduce together with the sealing body in the radiator, since a connected to the sealing body pressure element does not allow bending of the sealing body. It therefore makes sense to introduce the pressure element pre-assembled together with the sealing pin in the radiator, as a pushed onto the sealing pin pressure element automatically passes through its centering in the correct position relative to the sealing body.
  • the invention is therefore based on the object to improve a known from the prior art sealing system such that it is easier to assemble and the pressure loads on the individual parts of the sealing system are minimized.
  • the object of the invention is achieved in that the pressure element is sleeve-shaped and the sealing pin on its side facing the overflow opening has a defined shaped outer contour, which is introduced into a cup-like inner contour of the pressure element, such that on the Sealing pin acting pressure force can be transmitted to the pressure element.
  • the present invention advantageously makes it possible to reduce the pressure loads acting on individual components of the sealing system.
  • this sealing body In order to close the passage opening medium-tight by means of a sealing body, this sealing body is pressed by a contact force against the edges of the overflow opening.
  • This contact pressure is guided by a sealing pin in a pressure element, and introduced by this in the sealing body.
  • the pressure element has a sleeve-like shape with a cup-shaped inner contour.
  • the overflow opening facing the head side of the Abdichthays has a cup-like inner contour of the pressure element same outer contour, which is introduced into the inner contour of the pressure element.
  • the sealing system according to the invention facilitates the installation of the sealing system in the radiator.
  • the sealing body When installing the sealing system, the sealing body must first be arranged in the region of the overflow opening. Since the total diameter of the sealing body is greater than that of the overflow opening, the sealing body is bent so that it can be passed through the overflow due to its elastic properties during assembly. A pre-assembly of the sealing body with the other elements of the sealing system outside the radiator is not possible because these elements would prevent bending of the sealing body. It is difficult to place the pressure element sufficiently accurately relative to the sealing body located in the overflow through the opening opposite the overflow opening, therefore, offers a pre-assembly of sealing pin and pressure element outside of the radiator.
  • the outer contour of the sealing pin and the congruent to this inner contour of the pressure element are conical.
  • the conical outer or inner contour is easy to manufacture manufacturing technology. Due to the conical shape of the contact surface of sealing pin and pressure element, the pressure element is centered when sliding onto the head region of the sealing pin and at the same time stably fixed.
  • the pressure element with a passage opening in its bottom.
  • Such a pressure element can then be used together with a sealing ring as a sealing body and a valve as a sealing pin for regulating the flow rate of the heating medium through the overflow.
  • the outer contour of the sealing pin and the inner contour of the pressure element can be congruent.
  • the resulting contact surface between the sealing pin and pressure element is significantly increased compared to the prior art.
  • Essential in the shaping of sealing pin and pressure element is that the contact surfaces formed between them are congruent. Therefore, it is also possible conversely that the sealing pin is a sleeve-shaped element which encloses a congruent outer contour of the pressure element with its pot-like inner contour.
  • the contact surface between the pressure element and sealing pin can also consist of several partial surfaces. At constant height of the contact pressure, the increase in the contact surface leads to a significant reduction in transmitted between the outer contour of the Abdichthays and cup-shaped inner contour of the pressure element pressure loads.
  • the sealing system according to the invention also improves by the defined design of the contact surface between the outer contour of the Abdichthays and inner contour of the pressure element advantageously the leadership of the pressure element and its seat on the Abdichtroy.
  • the invention enables a centering of the pressure element by means of the sealing pin in the overflow opening. Through this precisely defined centered position of the pressure element, the position of the contact surfaces of the pressure element with the sealing body is precisely defined. This allows a uniform pressing of the sealing body to the edge of the overflow opening distributed over the circumference, whereby a more effective sealing is achieved. Furthermore, an additional seal of the sealing ring opening is achieved by the inventive design of the contact surface between the pressure element and sealing pin and the consequent firm fit of the pressure element on the sealing pin.
  • the sealing pin is a screw which presses the pressure element as a flat pressure attachment surface against the sealing ring, and this on the edge surrounding the overflow over its pressure element facing the outer contour. It is proposed to connect a cylindrical region to the outer contour of the sealing pin congruent to the inner contour of the pressure element, so that the inner contour of the pressure element encloses both the congruently shaped head region of the sealing pin and a part of the adjoining cylindrical region.
  • a sealing means may be disposed between the outer surface of the cylindrical portion of the sealing pin and the pressure element surrounding it. This sealant seals the passage opening of the sealing ring on the cylindrical surface of the sealing pin. It is also possible, for example, to arrange the sealing means in a groove of the inner contour of the pressure element.
  • the sealing means provided for sealing the passage opening of the sealing ring may be, for example, an O-ring.
  • the sealing pin may be a screw element which presses the pressure element over its end face as a flat pressure application surface against the sealing body, and this against the edge surrounding the overflow opening.
  • a small gap is formed between the conical outer contour of the sealing pin and the conical inner contour of the pressure element, which is sealed, for example, by a sealing means arranged between the two conical regions.
  • This sealant may be, for example, an O-ring.
  • the sealing means seals the sealing ring opening between the pressure element and the sealing pin by a radial contact between the sealing means and the sealing pin. This ensures that even in the case of a decrease in the contact pressure of the sealing pin, for example, by unintentional loosening or loosening, during operation leads to a loss of sealing effect.
  • the radial sealing effect of the sealant on the conical surface of the sealing pin the influence of the position of the sealing pin is reduced relative to the pressure element.
  • the sealing system according to the invention has at least one extension element.
  • This can be clamped between the sealing body and pressure element, for which purpose the pressure element can have at least one recess on its side facing the sealing body.
  • the extension elements make it possible to flexibly select the connections for flow and return and the positioning of the thermostat. This allows a flexible adaptation to the different conditions in a simple manner.
  • the extension elements can be made of plastic and / or metal, for example. Particularly advantageously, the extension element is sealingly clamped between the sealing body and pressure element.
  • extension element on its side facing the pressure element on a deformed collar, which can be clamped between the sealing body and the pressure element.
  • the sealing pin is screwed into a stopper.
  • standard screw and screw can be used.
  • the sealing pin may be a valve which makes it possible to regulate the flow of heating medium in the overflow region through the passage opening. If a complete seal between two basic elements can be made, can be dispensed with the use of a valve and it can, for example, a simple screw plug can be used to completely seal the overflow in the foot of the radiator.
  • the sealing body can be a closed sealing disc here.
  • a radiator is further provided, which has a sealing system according to the invention.
  • This radiator is inexpensive to produce, since standard components can be used for sealing and assembly is easy to handle.
  • Fig. 1 shows a portion of a radiator 1, which consists of several basic elements 2.
  • a base element 2a is provided with the Schuffenvorlauf.
  • Each basic element has a hub-like head and foot region 3, in which two opposite circular overflow openings 4 are formed.
  • the basic elements are connected to one another in a liquid-tight manner.
  • an overflow opening remains in the connection area.
  • This is closed in the foot region of the base member 2a, not shown, by the sealing system according to the invention, wherein an inventive sealing body can be used in the form of a closed disc or a sealing ring, which is pressed against the edge surrounding the overflow.
  • sealing pin can be used when using a sealing ring in the foot area, for example, a closed screw plug. This will cause overflow prevented by the connecting piece of the flow entering heating medium in the foot region of the adjacent base element.
  • a sealing body 6 is arranged in the region of an overflow opening 4a.
  • This is designed as a sealing ring, which has a passage opening 7.
  • the sealing body 6 has retaining lips 8. The retaining lips 8 protrude into the adjacent base element, the surrounding edge region 5 of the overflow opening lying in a peripheral groove 9 of the sealing body 6. The sealing body 6 is thereby fixed to the overflow 4a.
  • the sealing body is formed from a permanently elastic material 10, for example made of rubber or rubber.
  • a valve 11 As a sealing pin, a valve 11 is used, wherein the Schuffenfluß is regulated by the sealing ring opening 7 with the valve 11.
  • the valve 11 is screwed into a plug 12 and has on its the overflow opening 4a side facing an outer contour in the form of a truncated cone 13.
  • a pressure element 14 encloses the truncated cone 13 with a congruent to this inner shape.
  • the outer surface of the truncated cone 13 serves as a pressure attachment surface, via which the force applied by screwing the valve axially in the direction of the overflow opening force is transmitted via the pressure element 14 to the sealing body 6, whereby it is pressed against the edge of the overflow 4a.
  • the pressure element 14 increases the pressure transmission surface between the pressure element 14 and the sealing body 6, whereby a yielding of the permanently elastic material of the sealing body 6 in the support region of the pressure element 14 is reduced.
  • an O-ring 15 is arranged there.
  • the pressure element 14 is formed according to embodiment with a through hole. The force for liquid-tight pressing of the sealing body 6 to the edge of the overflow 4a is generated by screwing in the valve 11 and the stopper 12, respectively.
  • Fig. 1 retaining lips 8a are used to fix the pressure element 6 during assembly and disassembly for performing maintenance.
  • a valve 11 As a sealing pin, a valve 11 is used which has a truncated cone 13 and an end-face pressure surface 20 at its end pointing in the direction of the overflow opening 4.
  • the outer diameter of the truncated cone 13 is chosen so that between the truncated cone 13 and the pressure element 14, a small gap is formed when the front-side pressure surface 20 of the Abdichtrootes touches the pressure element.
  • an O-ring 15 is mounted in a groove in the pressure element 14 to seal the frusto-conical contact zone between the valve 11 and the pressure element 14 medium-tight.
  • the pressure element 14 is pressed by the frontal pressure surface 20 of the valve 11 in the direction of the overflow opening 4a to be sealed, so that the overflow 4a is sealed by the sealing body 6 medium-tight.
  • the outer surface of the truncated cone 13 of the valve 11 in the illustrated embodiment serves the purpose of facilitating the insertion of the valve 11 in the inner region of the pressure element 14 and to provide a sealing surface for radial sealing by means of the O-ring 15.
  • Fig. 3 shows a radiator with inventive sealing system and an extension tube 16, which allows a flexible arrangement of thermostats and flow and return connections.
  • the extension tube 16 has an integrally formed collar 18 at its pressure-element-side tube end 19.
  • This integrally formed collar 18 may, for example, be produced without cutting by forming methods such as drawing or pressing or the like.
  • This recess 17 serves to receive and clamp the molded collar 18 of the extension tube 16 between the sealing body 6 and the pressure element 14.
  • the depth of the recess 17 is advantageously slightly less than the height of the molded collar 18, since in this way a secure and stable clamping of the extension tube 16 between sealing body 6 and pressure element 14 is ensured.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Gasket Seals (AREA)
  • Resistance Heating (AREA)
  • Sealing Devices (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

The seal for a heating radiator (1), composed of a number of basic units (2) linked together by overflow openings (4), has a sleeve-shaped pressure component (14). The sealing pin valve (11) at the side towards the overflow opening has an outer contour in a defined shape, fitted into a pot-shaped inner contour of the pressure component, so that pressure on the pin is transferred to the pressure unit. The O-ring seal (6), of a durably elastic rubber (10), is within a groove (9) at the inner contour of the pressure unit.

Description

Die Erfindung betrifft ein Dichtsystem gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a sealing system according to the preamble of claim 1.

Ein derartiges Dichtsystem ist im Stand der Technik bekannt. Mit einem derartigen Dichtsystem ist es möglich, die Grundelemente eines Heizkörpers mit geringem technischem Aufwand gegeneinander abzudichten. Dabei werden beispielsweise die Überströmöffnungen zwischen dem mit dem Heizmittelvorlauf versehenen Grundelement und dem benachbarten Grundelement im Fußbereich mit einer angepreßten Scheibe vollständig verschlossen und im Überströmbereich des Kopfbereichs mit einem angepreßten Dichtring versehen, wobei der Heizmittelfluß über ein Ventil reguliert wird. Ein derartiges Dichtsystem wird beispielsweise in der EP 1 243 887 A1 beschrieben.Such a sealing system is known in the art. With such a sealing system, it is possible to seal the basic elements of a radiator with little technical effort against each other. In this case, for example, the overflow between the element provided with the Heizmittelvorlauf basic element and the adjacent base element in the foot area with a pressed disc completely closed and provided in Überströmbereich the head area with a pressed-sealing ring, the Heizmittelfluß is regulated by a valve. Such a sealing system is used for example in the EP 1 243 887 A1 described.

Der Vorteil eines derartigen Dichtsystems liegt darin, daß eine ausreichende Abdichtung dadurch erzielt wird, daß die Dichtelemente Ring bzw. Scheibe aus elastischem Material gebildet werden und durch einfaches Anpressen des Dichtelements an den Rand der jeweiligen Überstromöffnung eine ausreichende Abdichtung der Überströmöffnungen erfolgt. Dadurch werden in vorteilhafter Weise Schweißvorgänge zum Abdichten benachbarter Grundelemente überflüssig.The advantage of such a sealing system is that a sufficient seal is achieved in that the sealing elements ring or disc are formed of elastic material and by simply pressing the sealing element to the edge of the respective overflow sufficient Sealing the overflow occurs. As a result, welding operations for sealing adjacent base elements are advantageously unnecessary.

Die Abdichtung der Überströmöffnung erfolgt im vorliegenden Dichtsystem dadurch, daß ein Dichtkörper durch ein Druckelement und einen Abdichtstift mit Druck von einer Seite an den die Überströmöffnung umgebenden Rand angepreßt wird. Aufgrund der Tatsache, daß der Dichtkörper vorzugsweise aus einem dauerelastischen Material gebildet wird, wird eine mediumsdichte Abdichtung der Überströmöffnung erzielt. Um ein Überströmen des Heizmediums, zum Beispiel mit Hilfe eines Ventils, in das benachbarte Grundelement zu ermöglichen, ist der Dichtkörper in diesem Fall als Dichtring ausgebildet. Dabei ist die Dichtringöffnung zusätzlich abzudichten, um eine unidirektionale Strömung des Heizmediums zu sichern.The sealing of the overflow opening takes place in the present sealing system characterized in that a sealing body is pressed by a pressure element and a sealing pin with pressure from one side to the surrounding the overflow edge. Due to the fact that the sealing body is preferably formed of a permanently elastic material, a medium-tight sealing of the overflow opening is achieved. In order to allow an overflow of the heating medium, for example by means of a valve in the adjacent base element, the sealing body is formed in this case as a sealing ring. In this case, the sealing ring opening is additionally sealed in order to secure a unidirectional flow of the heating medium.

Bei der EP 1 243 887 A1 wird die Abdichtung der Überströmöffnung mittels eines Dichtsystems erzielt. Dieses Dichtsystem weist wenigstens einen Dichtkörper, ein Druckelement und einen Abdichtstift auf. Dabei ist der Dichtkörper als Dichtring mit einer definierten Durchgangsöffnung ausgebildet, der Abdichtstift weist eine Stirnfläche auf und das Druckelement weist wenigstens einen flächigen Bereich mit einem gegenüber der Stirnfläche des Abdichtstiftes vergrößerten Durchmesser auf. Das Druckelement wird zwischen Dichtring und Abdichtstift angeordnet, wobei der Abdichtstift durch eine der abzudichtenden Überströmöffnung gegenüberliegenden Öffnung eingebracht wird. Auf den Abdichtstift wird eine axial wirkende Anpresskraft in Richtung der abzudichtenden Überströmöffnung aufgebracht, wodurch die Stirnfläche des Abdichtstiftes an das Druckelement angepreßt wird und dieses mit seinem flächigen Bereich an den Dichtring gepreßt wird, wobei die Ränder der Durchgangsöffnung sowie der Überströmöffnung mediumsdicht abgedichtet werden.In the EP 1 243 887 A1 the sealing of the overflow opening is achieved by means of a sealing system. This sealing system has at least one sealing body, a pressure element and a sealing pin. In this case, the sealing body is designed as a sealing ring with a defined passage opening, the sealing pin has an end face and the pressure element has at least a flat area with an opposite the end face of the Abdichtstiftes enlarged diameter. The pressure element is arranged between the sealing ring and sealing pin, wherein the sealing pin is introduced through an opening opposite the sealed overflow opening. On the sealing pin an axially acting contact force is applied in the direction of the overflow opening to be sealed, whereby the end face of the Abdichtstiftes is pressed against the pressure element and this is pressed with its area on the sealing ring, the edges of the through hole and the overflow are sealed medium-tight.

Dieses Dichtsystem weist jedoch kleinere Schwächen auf. Die die Dichtringöffnung abdichtende Dichtung befindet sich zwischen dem Druckelement und der Stirnfläche des Abdichtstiftes, das heißt, daß das Dichten der Dichtringöffnung ausschließlich durch den axialen Kontakt zwischen Dichtung und Druckelement einerseits, beziehungsweise Stirnfläche des Abdichtstifts andererseits erfolgt. Daher kann es schon bei einem geringfügigen ungewollten Verlust der den Abdichtstift anpressenden Kraft, beispielsweise durch ein ungewolltes Lockern oder Lösen des Abdichtstiftes während des Betriebes, zu einem Verlust der Dichtwirkung der Dichtung kommen. Weiterhin ist die Fläche, über die der Anpreßdruck vom Abdichtstift auf das Druckelement übertragen wird, relativ klein, so daß es auch hier zu Materialermüdung kommen könnte.However, this sealing system has minor weaknesses. The seal sealing the sealing ring opening is located between the pressure element and the end face of the Abdichtstiftes, that is, the sealing of the sealing ring opening exclusively by the axial contact between seal and pressure element on the one hand, or end face of the Abdichtstifts on the other hand. Therefore, it can already at a slight unwanted loss of the Sealing pin pressing force, for example, by an unwanted loosening or loosening of the sealing pin during operation, come to a loss of sealing effect of the seal. Furthermore, the surface over which the contact pressure is transmitted from the sealing pin to the pressure element, relatively small, so that it could also come to material fatigue.

Ein weiterer Nachteil ergibt sich bei der Montage des Dichtsystems in den Heizkörper. Bei der Montage des Dichtsystems muß zunächst der Dichtkörper im Bereich der Überströmöffnung angeordnet werden. Der Gesamtdurchmesser des Dichtkörpers ist größer als der der Überströmöffnung. Der Dichtkörper kann aufgrund seiner elastischen Eigenschaften bei der Montage verbogen werden, so daß er in verbogenem Zustand durch die der Überströmöffnung gegenüberliegende Öffnung geführt und in die Überströmöffnung eingesetzt wird. Es ist daher nicht möglich, daß Druckelement vormontiert zusammen mit dem Dichtkörper in den Heizkörper einzubringen, da ein mit dem Dichtkörper verbundenes Druckelement ein Verbiegen des Dichtkörpers nicht zuläßt. Es macht daher Sinn, das Druckelement vormontiert zusammen mit dem Abdichtstift in den Heizkörper einzubringen, da ein auf den Abdichtstift aufgeschobenes Druckelement durch dessen Zentrierung automatisch in die richtige Position relativ zum Dichtkörper gelangt. Die in der EP 1 243 887 A1 vorgeschlagenen Ausführungen von Abdichtstift und Druckelement weisen dabei aufgrund der scheibenförmigen Geometrie des Druckelements den Nachteil einer relativ lockeren und wenig definierten Verbindung auf. Die im vormontierten Zustand ebenfalls locker zwischen Druckelement und Stirnfläche des Abdichtstifts befindliche Dichtung verstärkt diesen Nachteil.Another disadvantage arises when mounting the sealing system in the radiator. When installing the sealing system, the sealing body must first be arranged in the region of the overflow opening. The total diameter of the sealing body is greater than that of the overflow opening. The sealing body can be bent due to its elastic properties during assembly, so that it is guided in a bent state by the overflow opening opposite opening and inserted into the overflow. It is therefore not possible that preassembled pressure element to introduce together with the sealing body in the radiator, since a connected to the sealing body pressure element does not allow bending of the sealing body. It therefore makes sense to introduce the pressure element pre-assembled together with the sealing pin in the radiator, as a pushed onto the sealing pin pressure element automatically passes through its centering in the correct position relative to the sealing body. The in the EP 1 243 887 A1 proposed embodiments of sealing pin and pressure element have the disadvantage of a relatively loose and poorly defined connection due to the disc-shaped geometry of the pressure element. The seal also located in the preassembled state between the pressure element and the end face of the sealing pin reinforces this disadvantage.

Der Erfindung liegt daher die Aufgabe zugrunde, ein aus dem Stand der Technik bekanntes Dichtsystem derart zu verbessern, daß es einfacher zu montieren ist und die Druckbelastungen auf die einzelnen Teile des Dichtsystems minimiert werden.The invention is therefore based on the object to improve a known from the prior art sealing system such that it is easier to assemble and the pressure loads on the individual parts of the sealing system are minimized.

Die erfindungsgemäße Aufgabe wird dadurch gelöst, daß das Druckelement hülsenartig geformt ist und der Abdichtstift an seiner der Überströmöffnung zugewandten Seite eine definiert geformte Außenkontur hat, die in eine topfartige Innenkontur des Druckelements eingebracht wird, derart, daß die auf den Abdichtstift einwirkende Anpreßkraft auf das Druckelement übertragen werden kann.The object of the invention is achieved in that the pressure element is sleeve-shaped and the sealing pin on its side facing the overflow opening has a defined shaped outer contour, which is introduced into a cup-like inner contour of the pressure element, such that on the Sealing pin acting pressure force can be transmitted to the pressure element.

Die vorliegende Erfindung ermöglicht vorteilhaft die Reduzierung der auf einzelne Bauteile des Dichtsystems wirkenden Druckbelastungen. Um die Durchgangsöffnung mediumsdicht mit Hilfe eines Dichtkörpers zu verschließen, wird dieser Dichtkörper durch eine Anpreßkraft an die Ränder der Überströmöffnung angepreßt. Diese Anpreßkraft wird von einem Abdichtstift in ein Druckelement geleitet, und von diesem in den Dichtkörper eingebracht. Erfindungsgemäß besitzt das Druckelement eine hülsenartige Form mit einer topfförmigen Innenkontur. Die der Überströmöffnung zugewandte Kopfseite des Abdichtstifts besitzt eine der topfartigen Innenkontur des Druckelements gleichende Außenkontur, die in die Innenkontur des Druckelements eingebracht wird. Durch das erfindungsgemäße Dichtsystem wird die Montage des Dichtsystems in den Heizkörper erleichtert. Bei der Montage des Dichtsystems muß zunächst der Dichtkörper im Bereich der Überströmöffnung angeordnet werden. Da der Gesamtdurchmesser des Dichtkörpers größer ist als der der Überströmöffnung, wird der Dichtkörper aufgrund seiner elastischen Eigenschaften bei der Montage so verbogen, daß er durch die Überströmöffnung geführt werden kann. Eine Vormontage des Dichtkörpers mit den anderen Elementen des Dichtsystems außerhalb des Heizkörpers ist nicht möglich, da diese Elemente ein Verbiegen des Dichtkörpers verhindern würden. Es ist schwierig, das Druckelement hinreichend genau relativ zum in der Überströmöffnung befindlichen Dichtkörper durch die der Überströmöffnung gegenüberliegende Öffnung zu platzieren, daher bietet sich eine Vormontage von Abdichtstift und Druckelement außerhalb des Heizkörpers an.The present invention advantageously makes it possible to reduce the pressure loads acting on individual components of the sealing system. In order to close the passage opening medium-tight by means of a sealing body, this sealing body is pressed by a contact force against the edges of the overflow opening. This contact pressure is guided by a sealing pin in a pressure element, and introduced by this in the sealing body. According to the invention, the pressure element has a sleeve-like shape with a cup-shaped inner contour. The overflow opening facing the head side of the Abdichtstifts has a cup-like inner contour of the pressure element same outer contour, which is introduced into the inner contour of the pressure element. The sealing system according to the invention facilitates the installation of the sealing system in the radiator. When installing the sealing system, the sealing body must first be arranged in the region of the overflow opening. Since the total diameter of the sealing body is greater than that of the overflow opening, the sealing body is bent so that it can be passed through the overflow due to its elastic properties during assembly. A pre-assembly of the sealing body with the other elements of the sealing system outside the radiator is not possible because these elements would prevent bending of the sealing body. It is difficult to place the pressure element sufficiently accurately relative to the sealing body located in the overflow through the opening opposite the overflow opening, therefore, offers a pre-assembly of sealing pin and pressure element outside of the radiator.

Gemäß einer vorteilhaften Weiterbildung wird vorgeschlagen, daß die Außenkontur des Abdichtstifts und die zu dieser kongruente Innenkontur des Druckelements konisch sind. Die konische Außen- bzw. Innenkontur ist fertigungstechnisch einfach herzustellen. Durch die konische Form der Kontaktfläche von Abdichtstift und Druckelement wird das Druckelement beim Aufschieben auf den Kopfbereich des Abdichtstifts zentriert und gleichzeitig stabil fixiert.According to an advantageous development, it is proposed that the outer contour of the sealing pin and the congruent to this inner contour of the pressure element are conical. The conical outer or inner contour is easy to manufacture manufacturing technology. Due to the conical shape of the contact surface of sealing pin and pressure element, the pressure element is centered when sliding onto the head region of the sealing pin and at the same time stably fixed.

Gemäß einer vorteilhaften Weiterbildung wird vorgeschlagen, das Druckelement mit einer Durchgangsöffnung in seinem Boden zu versehen. Ein derartiges Druckelement kann dann zusammen mit einem Dichtring als Dichtkörper und einem Ventil als Abdichtstift zur Regulierung der Durchflußmenge des Heizmittels durch die Überströmöffnung eingesetzt werden.According to an advantageous development, it is proposed to provide the pressure element with a passage opening in its bottom. Such a pressure element can then be used together with a sealing ring as a sealing body and a valve as a sealing pin for regulating the flow rate of the heating medium through the overflow.

Weiterhin kann die Außenkontur des Abdichtstifts und die Innenkontur des Druckelements kongruent sein. Die durch diese Formgebung entstehende Kontaktfläche zwischen Abdichtstift und Druckelement ist im Vergleich zum Stand der Technik deutlich vergrößert. Wesentlich bei der Formgebung von Abdichtstift und Druckelement ist, dass die zwischen diesen entstehenden Kontaktflächen kongruent sind. Daher ist es auch umgekehrt möglich, dass der Abdichtstift ein hülsenförmiges Element ist, das mit seiner topfartigen Innenkontur eine kongruente Außenkontur des Druckelements umschließt. Weiterhin kann die Kontaktfläche zwischen Druckelement und Abdichtstift auch aus mehreren Teilflächen bestehen. Bei gleichbleibender Höhe der Anpreßkraft führt die Vergrößerung der Kontaktfläche zu einer deutlichen Reduzierung der zwischen Außenkontur des Abdichtstifts und topfartiger Innenkontur des Druckelements übertragenen Druckbelastungen. Das erfindungsgemäße Dichtsystem verbessert außerdem durch die definierte Gestaltung der Kontaktfläche zwischen Außenkontur des Abdichtstifts und Innenkontur des Druckelements vorteilhaft die Führung des Druckelements und dessen Sitz auf dem Abdichtstift. Durch die Erfindung wird eine Zentrierung des Druckelements mit Hilfe des Abdichtstifts in der Überströmöffnung ermöglicht. Durch diese genau definierte zentrierte Lage des Druckelements ist die Lage der Kontaktflächen des Druckelements mit dem Dichtkörper genau definiert. Dadurch wird ein gleichmäßiges Anpressen des Dichtkörpers an den Rand der Überströmöffnung über deren Umfang verteilt ermöglicht, wodurch eine effektivere Abdichtung erzielt wird. Weiterhin wird durch die erfindungsgemäße Gestaltung der Kontaktfläche zwischen Druckelement und Abdichtstift und den dadurch bedingten festen Sitz des Druckelements auf dem Abdichtstift eine zusätzliche Dichtung der Dichtringöffnung erreicht. Durch die erfindungsgemäße Gestaltung der Außenkontur des Abdichtstifts kongruent zur Innenkontur des Druckelements ist ein stabiler Sitz und eine genaue Justierung des Druckelements auf dem Kopfbereich des Abdichtstifts gegeben, so daß eine Montage der außerhalb des Heizkörpers vormontierten Teile in den Heizkörper erleichtert wird.Furthermore, the outer contour of the sealing pin and the inner contour of the pressure element can be congruent. The resulting contact surface between the sealing pin and pressure element is significantly increased compared to the prior art. Essential in the shaping of sealing pin and pressure element is that the contact surfaces formed between them are congruent. Therefore, it is also possible conversely that the sealing pin is a sleeve-shaped element which encloses a congruent outer contour of the pressure element with its pot-like inner contour. Furthermore, the contact surface between the pressure element and sealing pin can also consist of several partial surfaces. At constant height of the contact pressure, the increase in the contact surface leads to a significant reduction in transmitted between the outer contour of the Abdichtstifts and cup-shaped inner contour of the pressure element pressure loads. The sealing system according to the invention also improves by the defined design of the contact surface between the outer contour of the Abdichtstifts and inner contour of the pressure element advantageously the leadership of the pressure element and its seat on the Abdichtstift. The invention enables a centering of the pressure element by means of the sealing pin in the overflow opening. Through this precisely defined centered position of the pressure element, the position of the contact surfaces of the pressure element with the sealing body is precisely defined. This allows a uniform pressing of the sealing body to the edge of the overflow opening distributed over the circumference, whereby a more effective sealing is achieved. Furthermore, an additional seal of the sealing ring opening is achieved by the inventive design of the contact surface between the pressure element and sealing pin and the consequent firm fit of the pressure element on the sealing pin. Due to the inventive design of the outer contour of the Abdichtstifts congruent to the inner contour of the pressure element is a stable seat and a precise adjustment of the pressure element on the head portion of the Abdichtstifts given so that a Mounting the outside of the radiator pre-assembled parts in the radiator is facilitated.

Gemäß einem weiteren vorteilhaften Vorschlag ist der Abdichtstift ein Schraubelement, das über seine dem Druckelement zugewandte Außenkontur das Druckelement als flächige Druckansatzfläche gegen den Dichtring, und diesen an den die Überströmöffnung umgebenden Rand preßt. Es wird vorgeschlagen, an der zur Innenkontur des Druckelements kongruenten Außenkontur des Abdichtstifts einen zylindrischen Bereich anzuschließen, so daß die Innenkontur des Druckelements sowohl den zu ihr kongruent geformten Kopfbereich des Abdichtstifts, als auch einen Teil des sich diesem anschließenden zylindrischen Bereichs umschließt. Zwischen der Außenfläche des zylindrischen Bereichs des Abdichtstifts und dem diese umschließenden Druckelement kann ein Dichtmittel angeordnet sein. Dieses Dichtmittel dichtet die Durchgangsöffnung des Dichtringes auf der Zylinderfläche des Abdichtstiftes ab. Es ist beispielsweise weiterhin möglich, das Dichtmittel in einer Nut der Innenkontur des Druckelements anzuordnen. Das zum Abdichten der Durchgangsöffnung des Dichtringes vorgesehene Dichtmittel kann beispielsweise ein O-Ring sein.According to a further advantageous proposal, the sealing pin is a screw which presses the pressure element as a flat pressure attachment surface against the sealing ring, and this on the edge surrounding the overflow over its pressure element facing the outer contour. It is proposed to connect a cylindrical region to the outer contour of the sealing pin congruent to the inner contour of the pressure element, so that the inner contour of the pressure element encloses both the congruently shaped head region of the sealing pin and a part of the adjoining cylindrical region. A sealing means may be disposed between the outer surface of the cylindrical portion of the sealing pin and the pressure element surrounding it. This sealant seals the passage opening of the sealing ring on the cylindrical surface of the sealing pin. It is also possible, for example, to arrange the sealing means in a groove of the inner contour of the pressure element. The sealing means provided for sealing the passage opening of the sealing ring may be, for example, an O-ring.

In einer alternativen Ausführungsform kann der Abdichtstift ein Schraubelement sein, welches über seine Stirnfläche das Druckelement als flächige Druckansatzfläche gegen den Dichtkörper, und diesen an den die Überströmöffnung umgebenden Rand preßt. Dabei entsteht zwischen der kegeligen Außenkontur des Abdichtstifts und der kegeligen Innenkontur des Druckelements ein kleiner Spalt, der beispielsweise durch ein zwischen den beiden kegeligen Bereichen angeordnetes Dichtmittel abgedichtet ist. Dieses Dichtmittel kann beispielsweise ein O-Ring sein. Bei dieser Ausführungsform bieten sich vorteilhaft gute Demontagemöglichkeiten des Abdichtstifts, da Rückhaltekräfte der Haltelippen des Dichtkörpers größer sind als die zwischen Dichtmittel und kegeliger Außenkontur des Abdichtstifts vorhandenen Klemmkräfte. Vorteilhaft dichtet das Dichtmittel die Dichtringöffnung zwischen Druckelement und Abdichtstift durch einen radialen Kontakt zwischen Dichtmittel und Abdichtstift ab. Dadurch wird gewährleistet, daß auch im Falle eines Nachlassens der Anpreßkraft des Abdichtstiftes, beispielsweise durch ungewolltes Lockern oder Lösen, im Betrieb zu einem Verlust der Dichtwirkung führt. Durch die radiale Dichtwirkung des Dichtmittels auf der kegeligen Oberfläche des Abdichtstifts wird der Einfluß der Lage des Abdichtstifts relativ zum Druckelement vermindert.In an alternative embodiment, the sealing pin may be a screw element which presses the pressure element over its end face as a flat pressure application surface against the sealing body, and this against the edge surrounding the overflow opening. In this case, a small gap is formed between the conical outer contour of the sealing pin and the conical inner contour of the pressure element, which is sealed, for example, by a sealing means arranged between the two conical regions. This sealant may be, for example, an O-ring. In this embodiment, advantageously offer good dismantling possibilities of Abdichtstifts because retaining forces of the retaining lips of the sealing body are greater than the existing between the sealing means and tapered outer contour of the Abdichtstifts clamping forces. Advantageously, the sealing means seals the sealing ring opening between the pressure element and the sealing pin by a radial contact between the sealing means and the sealing pin. This ensures that even in the case of a decrease in the contact pressure of the sealing pin, for example, by unintentional loosening or loosening, during operation leads to a loss of sealing effect. By the radial sealing effect of the sealant on the conical surface of the sealing pin, the influence of the position of the sealing pin is reduced relative to the pressure element.

Gemäß einer vorteilhaften Weiterbildung weist das erfindungsgemäße Dichtsystem wenigstens ein Verlängerungselement auf. Dieses ist zwischen Dichtkörper und Druckelement einklemmbar, wozu das Druckelement an seiner dem Dichtkörper zugewandten Seite wenigstens eine Aufsparung aufweisen kann. Durch den Einsatz von Verlängerungselementen wird in vorteilhafterweise ermöglicht, aus jedem beliebigen Radiatorblock einen Komplettheitskörper mit integrierten Thermostatventil herzustellen. Die Verlängerungselemente ermöglichen es, die Anschlüsse für Vorlauf- und Rücklauf und die Positionierung des Thermostats flexibel zu wählen. Dadurch wird in einfacher Weise eine flexible Anpassung an die unterschiedlichen Gegebenheiten ermöglicht. Die Verlängerungselemente können dabei beispielsweise aus Kunststoff und/oder Metall sein. Besonders vorteilhaft ist das Verlängerungselement dichtend zwischen Dichtkörper und Druckelement eingespannt. Dadurch wird vorteilhaft sowohl ein weiteres Abdichten, als auch ein weiterer Fertigungsvorgang zum Verbinden des Verlängerungselements mit dem Abdichtstift bzw. dem Druckelement, wie z. B. Schrauben, Pressen, Kleben, etc., vermieden. In einer besonders bevorzugten Ausführungsform weist das Verlängerungselement an seiner dem Druckelement zugewandten Seite einen umgeformten Bund auf, welcher zwischen Dichtkörper und Druckelement einklemmbar ist.According to an advantageous development, the sealing system according to the invention has at least one extension element. This can be clamped between the sealing body and pressure element, for which purpose the pressure element can have at least one recess on its side facing the sealing body. Through the use of extension elements is advantageously made possible to produce a complete body with integrated thermostatic valve from any radiator block. The extension elements make it possible to flexibly select the connections for flow and return and the positioning of the thermostat. This allows a flexible adaptation to the different conditions in a simple manner. The extension elements can be made of plastic and / or metal, for example. Particularly advantageously, the extension element is sealingly clamped between the sealing body and pressure element. This advantageously both a further sealing, as well as a further manufacturing operation for connecting the extension element with the sealing pin or the pressure element, such. As screws, presses, gluing, etc., avoided. In a particularly preferred embodiment, the extension element on its side facing the pressure element on a deformed collar, which can be clamped between the sealing body and the pressure element.

Gemäß einer weiteren vorteilhaften Weiterbildung wird vorgeschlagen, daß der Abdichtstift in einen Verschlußstopfen eingeschraubt wird. Dabei können serienmäßige Schraub- und Einschraubelemente verwendet werden. Ferner kann der Abdichtstift ein Ventil sein, welches es ermöglicht, den Heizmittelstrom im Überströmbereich durch die Durchgangsöffnung zu regulieren. Sofern eine vollständige Abdichtung zwischen zwei Grundelementen erfolgen kann soll, kann auf den Einsatz eines Ventils verzichtet werden und es kann beispielsweise ein einfacher Schraubstopfen verwendet werden, um die Überströmöffnung im Fußbereich des Heizkörpers vollständig abzudichten. Auch kann hier der Dichtkörper eine geschlossene Dichtscheibe sein.According to a further advantageous embodiment, it is proposed that the sealing pin is screwed into a stopper. In this case, standard screw and screw can be used. Furthermore, the sealing pin may be a valve which makes it possible to regulate the flow of heating medium in the overflow region through the passage opening. If a complete seal between two basic elements can be made, can be dispensed with the use of a valve and it can, for example, a simple screw plug can be used to completely seal the overflow in the foot of the radiator. Also, the sealing body can be a closed sealing disc here.

Mit der Erfindung wird ferner ein Heizkörper zur Verfügung gestellt, welcher ein erfindungsgemäßes Dichtsystem aufweist. Dieser Heizkörper ist kostengünstig herstellbar, da für die Abdichtung serienmäßige Bauteile verwendet werden können und die Montage einfach zu handhaben ist.With the invention, a radiator is further provided, which has a sealing system according to the invention. This radiator is inexpensive to produce, since standard components can be used for sealing and assembly is easy to handle.

Weitere Vorteile und Merkmale ergeben sich anhand der Figurenbeschreibung. Diese dient ausschließlich der Erläuterung und ist nicht beschränkend. Dabei zeigt:

Fig. 1:
einen senkrecht geschnittenen Teilbereich eines Heizkörpers, wobei das Dichtsystem gemäß einer Ausführungsform im Ventilbereich gezeigt ist;
Fig. 2:
einen senkrecht geschnittenen Teilbereich eines Heizkörpers, wobei das Dichtsystem gemäß einer zweiten Ausführungsform im Ventilbereich gezeigt ist und
Fig. 3:
einen senkrecht geschnittenen Teilbereich eines Heizkörpers, wobei das Dichtsystem mit einem Verlängerungselement beispielsweise im Fußbereich eines Heizkörpers eingebaut ist.
Further advantages and features will be apparent from the description of the figures. This is for explanation only and is not limiting. Showing:
Fig. 1:
a vertically sectioned portion of a radiator, wherein the sealing system is shown according to an embodiment in the valve region;
Fig. 2:
a vertically sectioned portion of a radiator, wherein the sealing system is shown according to a second embodiment in the valve region and
3:
a vertically cut portion of a radiator, wherein the sealing system is installed with an extension element, for example in the foot of a radiator.

In Fig. 1 erkennt man einen Teilbereich eines Heizkörpers 1, der aus mehreren Grundelementen 2 besteht. Dabei ist ein Grundelement 2a mit dem Heizmittelvorlauf versehen. Jedes Grundelement hat einen nabenartigen Kopfund Fußbereich 3, in denen zwei einander gegenüberliegende kreisförmige Überströmöffnungen 4 ausgebildet sind. In den diese Überströmöffnungen umgebenden Randbereichen 5 sind die Grundelemente flüssigkeitsdicht miteinander verbunden. Durch die Verbindung der Grundelemente verbleibt im Verbindungsbereich je eine Überströmöffnung. Diese wird im nicht dargestellten Fußbereich des Grundelements 2a durch das erfindungsgemäße Dichtsystem verschlossen, wobei ein erfindungsgemäßer Dichtkörper in Form einer geschlossenen Scheibe oder eines Dichtrings verwendet werden kann, welcher an den die Überströmöffnung umgebenden Rand gepreßt wird. Als Abdichtstift kann bei Verwendung eines Dichtringes im Fußbereich beispielsweise ein geschlossener Schraubstopfen verwendet werden. Dadurch wird ein Überströmen des durch den Anschlußstutzen des Vorlaufs eintretenden Heizmittels in den Fußbereich des benachbarten Grundelements verhindert.In Fig. 1 shows a portion of a radiator 1, which consists of several basic elements 2. In this case, a base element 2a is provided with the Heizmittelvorlauf. Each basic element has a hub-like head and foot region 3, in which two opposite circular overflow openings 4 are formed. In the peripheral areas 5 surrounding these overflow openings, the basic elements are connected to one another in a liquid-tight manner. As a result of the connection of the basic elements, an overflow opening remains in the connection area. This is closed in the foot region of the base member 2a, not shown, by the sealing system according to the invention, wherein an inventive sealing body can be used in the form of a closed disc or a sealing ring, which is pressed against the edge surrounding the overflow. When sealing pin can be used when using a sealing ring in the foot area, for example, a closed screw plug. This will cause overflow prevented by the connecting piece of the flow entering heating medium in the foot region of the adjacent base element.

Im Kopfbereich des Grundelements 2a ist ein Dichtkörper 6 im Bereich einer Überströmöffnung 4a angeordnet. Dieser ist als Dichtring ausgebildet, der eine Durchgangsöffnung 7 aufweist. Der Dichtkörper 6 weist Haltelippen 8 auf. Die Haltelippen 8 ragen in das benachbarte Grundelement hinein, wobei der umgebende Randbereich 5 der Überströmöffnung in einer umlaufenden Nut 9 des Dichtkörpers 6 liegt. Der Dichtkörper 6 wird dadurch an der Überströmöffnung 4a fixiert. Der Dichtkörper ist aus einem dauerelastischen Material 10 gebildet, beispielsweise aus Gummi oder Kautschuk.In the head region of the base element 2a, a sealing body 6 is arranged in the region of an overflow opening 4a. This is designed as a sealing ring, which has a passage opening 7. The sealing body 6 has retaining lips 8. The retaining lips 8 protrude into the adjacent base element, the surrounding edge region 5 of the overflow opening lying in a peripheral groove 9 of the sealing body 6. The sealing body 6 is thereby fixed to the overflow 4a. The sealing body is formed from a permanently elastic material 10, for example made of rubber or rubber.

Als Abdichtstift wird ein Ventil 11 verwendet, wobei der Heizmittelfluß durch die Dichtringöffnung 7 mit dem Ventil 11 reguliert wird. Das Ventil 11 ist in einen Verschlußstopfen 12 eingeschraubt und weist an seiner der Überströmöffnung 4a zugewandten Seite eine Außenkontur in Form eines Kegelstumpfes 13 auf. Ein Druckelement 14 umschließt den Kegelstumpf 13 mit einer zu diesem kongruenten Innenform. Die Außenfläche des Kegelstumpfs 13 dient als Druckansatzfläche, über die die durch das Einschrauben des Ventils axial in Richtung der Überströmöffnung aufgebrachte Kraft über das Druckelement 14 auf den Dichtkörper 6 übertragen wird, wodurch dieser an den Rand der Überströmöffnung 4a gepreßt wird. Das Druckelement 14 vergrößert die Druckübertragungsfläche zwischen Druckelement 14 und Dichtkörper 6, wodurch ein Nachgeben des dauerelastischen Materials des Dichtkörpers 6 im Auflagebereich des Druckelements 14 vermindert wird. Um die kegelstumpfförmige Kontaktzome zwischen Ventil 11 und Druckelement 14 mediumsdicht abzudichten, ist dort ein O-Ring 15 angeordnet. Das Druckelement 14 ist gemäß Ausführungsbeispiel mit einer Durchgangsöffnung ausgebildet. Die Kraft zum flüssigkeitsdichten Anpressen des Dichtkörpers 6 an den Rand der Überströmöffnung 4a wird durch Einschrauben des Ventils 11 bzw. des Verschlußstopfens 12 erzeugt.As a sealing pin, a valve 11 is used, wherein the Heizmittelfluß is regulated by the sealing ring opening 7 with the valve 11. The valve 11 is screwed into a plug 12 and has on its the overflow opening 4a side facing an outer contour in the form of a truncated cone 13. A pressure element 14 encloses the truncated cone 13 with a congruent to this inner shape. The outer surface of the truncated cone 13 serves as a pressure attachment surface, via which the force applied by screwing the valve axially in the direction of the overflow opening force is transmitted via the pressure element 14 to the sealing body 6, whereby it is pressed against the edge of the overflow 4a. The pressure element 14 increases the pressure transmission surface between the pressure element 14 and the sealing body 6, whereby a yielding of the permanently elastic material of the sealing body 6 in the support region of the pressure element 14 is reduced. In order to seal the frusto-conical Kontaktzome between valve 11 and pressure element 14 medium-tight, an O-ring 15 is arranged there. The pressure element 14 is formed according to embodiment with a through hole. The force for liquid-tight pressing of the sealing body 6 to the edge of the overflow 4a is generated by screwing in the valve 11 and the stopper 12, respectively.

Die in Fig. 1 erkennbaren Haltelippen 8a dienen zur Fixierung des Druckelements 6 während Montage und Demontage zur Durchführung von Wartungsarbeiten.The recognizable in Fig. 1 retaining lips 8a are used to fix the pressure element 6 during assembly and disassembly for performing maintenance.

In Fig. 2 ist der Einbau einer weiteren Ausführungsform des erfindungsgemäßen Dichtsystems dargestellt. Als Abdichtstift wird ein Ventil 11 verwendet, der an seinem in Richtung der Überströmöffnung 4 weisenden Ende einen Kegelstumpf 13 und eine stirnseitige Druckfläche 20 aufweist. Der Außendurchmesser des Kegelstumpfs 13 ist dabei so gewählt, daß zwischen Kegelstumpf 13 und Druckelement 14 ein kleiner Spalt entsteht, wenn die stirnseitige Druckfläche 20 des Abdichtstiftes das Druckelement berührt. In diesem Spalt ist ein O-Ring 15 in einer Nut im Druckelement 14 angebracht, um die kegelstumpfförmige Kontaktzone zwischen Ventil 11 und Druckelement 14 mediumsdicht abzudichten. Bei der dargestellten Ausführungsform wird das Druckelement 14 durch die stirnseitige Druckfläche 20 des Ventils 11 in Richtung der abzudichtenden Überströmöffnung 4a gepreßt, so daß die Überströmöffnung 4a durch den Dichtkörper 6 mediumsdicht abgedichtet wird. Die Außenfläche des Kegelstumpfs 13 des Ventils 11 erfüllt in der dargestellten Ausführungsform den Zweck, das Einführen des Ventils 11 in den Innenbereich des Druckelements 14 zu erleichtern und eine Dichtfläche zum radialen Abdichten mit Hilfe des O-Rings 15 zur Verfügung zu stellen.2, the installation of a further embodiment of the sealing system according to the invention is shown. As a sealing pin, a valve 11 is used which has a truncated cone 13 and an end-face pressure surface 20 at its end pointing in the direction of the overflow opening 4. The outer diameter of the truncated cone 13 is chosen so that between the truncated cone 13 and the pressure element 14, a small gap is formed when the front-side pressure surface 20 of the Abdichtstiftes touches the pressure element. In this gap, an O-ring 15 is mounted in a groove in the pressure element 14 to seal the frusto-conical contact zone between the valve 11 and the pressure element 14 medium-tight. In the illustrated embodiment, the pressure element 14 is pressed by the frontal pressure surface 20 of the valve 11 in the direction of the overflow opening 4a to be sealed, so that the overflow 4a is sealed by the sealing body 6 medium-tight. The outer surface of the truncated cone 13 of the valve 11 in the illustrated embodiment serves the purpose of facilitating the insertion of the valve 11 in the inner region of the pressure element 14 and to provide a sealing surface for radial sealing by means of the O-ring 15.

Fig. 3 zeigt einen Heizkörper mit erfindungsgemäßem Dichtsystem und einem Verlängerungsrohr 16, welches eine flexible Anordnung von Thermostaten und Vorlauf- und Rücklaufanschlüssen ermöglicht. Das Verlängerungsrohr 16 weist an seinem druckelementseitigen Rohrende 19 einen angeformten Bund 18 auf. Dieser angeformte Bund 18 kann beispielsweise spanlos durch Umformungsverfahren wie Ziehen oder Drücken oder dergleichen hergestellt sein. An der dem Dichtkörper 6 zugewandten Seite des Druckelements 14 befindet sich eine Eindrehung 17. Diese Eindrehung 17 dient zur Aufnahme und Klemmung des angeformten Bundes 18 des Verlängerungsrohres 16 zwischen Dichtkörper 6 und Druckelement 14. Die Tiefe der Eindrehung 17 ist vorteilhaft etwas geringer als die Höhe des angeformten Bundes 18, da auf diese Weise ein sicheres und stabiles Klemmen des Verlängerungsrohres 16 zwischen Dichtkörper 6 und Druckelement 14 gewährleistet ist.Fig. 3 shows a radiator with inventive sealing system and an extension tube 16, which allows a flexible arrangement of thermostats and flow and return connections. The extension tube 16 has an integrally formed collar 18 at its pressure-element-side tube end 19. This integrally formed collar 18 may, for example, be produced without cutting by forming methods such as drawing or pressing or the like. This recess 17 serves to receive and clamp the molded collar 18 of the extension tube 16 between the sealing body 6 and the pressure element 14. The depth of the recess 17 is advantageously slightly less than the height of the molded collar 18, since in this way a secure and stable clamping of the extension tube 16 between sealing body 6 and pressure element 14 is ensured.

Bezugszeichenliste: List of reference numbers :

11
Heizkörperradiator
22
Grundelementbasic element
2a2a
Grundelementbasic element
33
nabenartiger Kopfbereichhub-like head area
44
Überströmöffnungoverflow
4a4a
Überströmöffnungoverflow
55
Randbereich der ÜberströmöffnungEdge region of the overflow opening
66
Dichtkörpersealing body
77
Durchgangsöffnung des DichtringsThrough opening of the sealing ring
88th
Haltelipperetaining lip
8a8a
Haltelipperetaining lip
99
Nutgroove
1010
dauerelastisches Materialpermanently elastic material
1111
VentilValve
1212
Verschlußstopfenplugs
1313
Kegelstumpftruncated cone
1414
Druckelementpressure element
1515
O-RingO-ring
1616
Verlängerungsrohrextension tube
1717
Eindrehungrecess
1818
angeformter Bundmolded waistband
1919
druckelementseitiges Rohrendepressure-element-side pipe end
2020
stirnseitige Druckflächefrontal printing surface

Claims (19)

  1. A sealing system for a radiator (1) comprising several basic elements, whereby the individual basic elements (2) are connected to each other, sealed against the medium, forming overflow openings (4), whereby the openings in the overflow regions between at least a last member and an adjacent member can be sealed with the sealing system, whereby the sealing system has at least one sealing body (6), a pressure element (14), and a sealing pin (11), whereby the sealing body is formed as a sealing ring with a defined through-opening (7), into which the overflow opening (4a) can be inserted, and which can be pressed against the edge surrounding the overflow opening (4a) so as to seal it, whereby the axially acting force necessary for this can be applied in the direction of the overflow opening to the sealing pin (11) inserted through an opening lying opposite the overflow opening (4a) to be sealed, whereby an area of the sealing pin (11) is pressed against the pressure element (14) and this, with a disk-shaped region, is pressed against the sealing ring (6), whereby the contact area between the pressure element (14) and the sealing ring (6) is larger than the part of the contact surface projected onto a plane orthogonal to pressing force direction between the sealing pin (11) and the pressure element (14), whereby the edges of the through-openings (7) and the overflow opening (4a) can be sealed against the medium,
    characterised in that the pressure element (14) is formed in the shape of a sleeve and the sealing pin (11) has a defined, shaped outer contour on its side facing the overflow opening (4a), whereby said outer contour is inserted into the pot-shaped inner contour of the pressure element (14) in such a way that the pressing force acting on the sealing pin (11) can be transferred to the pressure element (14).
  2. A sealing system according to claim 1, characterised in that the outer contour of the sealing pin (11) and the inner contour of the pressure element (14) are conical.
  3. A sealing system according to one of claims 1 through 2, characterised in that the pressure element (14) is a sleeve-shaped element with a through-opening (7) in its floor.
  4. A sealing system according to one of claims 1 through 3, characterised in that the outer contour of the sealing pin (11) and the inner contour of the pressure element (14) are congruent.
  5. A sealing system according to one or more of claims 1 through 4, characterised in that the sealing pin (11) is a screw element, that presses the pressure element (14) through its outer contour facing the pressure element, as a flat pressure-impact area against the sealing ring (6), and the sealing ring against the edge surrounding the overflow opening (4a).
  6. A sealing system according to one of claims 1 through 3, characterised in that the sealing pin (11) is a screw element, that presses the pressure element (14) over its face area as a flat pressure-impact area against the sealing ring (6), and the sealing ring against the edge surrounding the overflow opening (4a).
  7. A sealing system according to one or more of claims 1 through 5, characterised in that at the outer contour of the sealing pin (11) facing the pressure element (14), a cylindrical region is connected, whereby the inner contour of the pressure element (14) encloses the outer contour and a part of the cylindrical region.
  8. A sealing system according to claim 7, characterised in that a sealing means (15) are arranged between the cylindrical region of the sealing pin (11) and the pressure element (14).
  9. A sealing system according to claim 6, characterised in that a sealing means (15) are arranged between the frustum region (13) of the sealing pin (11) and the pressure element (14).
  10. A sealing system according to one of claims 8 or 9, characterised in that the sealing means (15) are arranged in a groove in the inner contour of the pressure element (14).
  11. A sealing system according to one or more of claims 1 through 10, characterised in that the sealing pin (11) is screwed into a sealing plug (12).
  12. A sealing system according to one or more of claims 1 through 11, characterised in that the sealing pin (11) is a valve.
  13. A sealing system according to one of the preceding claims, characterised in that at least one extension element (16) can be arranged.
  14. A sealing system according to claim 13, characterised in that the extension element (16) is clamped in between the sealing body (6) and the pressure element (14).
  15. A sealing system according to one of claims 13 or 14, characterised in that the pressure element (14) at it side facing the sealing body has at least one recess (17) for seating at least a part of the extension element (16).
  16. A sealing system according to one of claims 13 through 15, characterised in that the extension element (16) is restrained so as to create a seal between the sealing body (6) and the pressure element (14).
  17. A sealing system according to one of claims 13 through 16, characterised in that the extension element (16) with a shaped connection is clamped between the sealing body (6) and the pressure element (14).
  18. A sealing system according to one of claims 8, 9, or 10, characterised in that the sealing means is an O-ring (15).
  19. A radiator, characterised by a sealing system according to one or more of the claims I through 18.
EP04005938A 2003-03-29 2004-03-12 Sealing system for a heating radiator Expired - Lifetime EP1464899B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04005938T PL1464899T3 (en) 2003-03-29 2004-03-12 Sealing system for a heating radiator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20305104U DE20305104U1 (en) 2003-03-29 2003-03-29 Sealing system for a radiator
DE20305104U 2003-03-29

Publications (3)

Publication Number Publication Date
EP1464899A2 EP1464899A2 (en) 2004-10-06
EP1464899A3 EP1464899A3 (en) 2004-12-22
EP1464899B1 true EP1464899B1 (en) 2007-07-04

Family

ID=27675341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005938A Expired - Lifetime EP1464899B1 (en) 2003-03-29 2004-03-12 Sealing system for a heating radiator

Country Status (4)

Country Link
EP (1) EP1464899B1 (en)
AT (1) ATE366396T1 (en)
DE (2) DE20305104U1 (en)
PL (1) PL1464899T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009011150B4 (en) * 2009-02-28 2020-08-06 Danfoss A/S Sectional radiator separator and sectional radiator
DE102009011151B4 (en) * 2009-02-28 2020-07-09 Danfoss A/S Sectional radiator separator and sectional radiator
IT1395748B1 (en) * 2009-09-21 2012-10-19 Dl Radiators Spa SYSTEM FOR THE INTERNAL HOLDING OF A RADIATOR.
RU2478884C1 (en) * 2011-09-26 2013-04-10 Павел Эдуардович Мельников Sectional hot-water radiator and threaded bushing for it
RU195496U1 (en) * 2019-11-05 2020-01-29 Общество с ограниченной ответственностью "Сильвер-Инновация" BOTTOM HEATING RADIATOR WITH INTEGRATED THERMOSTATIC VALVE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29502860U1 (en) * 1995-02-21 1995-04-06 HKF Heizkörperfertigung Meiningen GmbH, 98617 Meiningen Tube radiator
DE59503989D1 (en) * 1995-03-25 1998-11-26 Zehnder Verkauf Verwaltung radiator
DE19818209C2 (en) * 1997-04-26 2002-10-24 Siegfried Von Der Heyden Universal Sectional radiators
ATE257578T1 (en) * 2001-03-21 2004-01-15 Zehnder Verkauf Verwaltung SEALING SYSTEM FOR A RADIATOR

Also Published As

Publication number Publication date
EP1464899A2 (en) 2004-10-06
PL1464899T3 (en) 2007-11-30
EP1464899A3 (en) 2004-12-22
DE20305104U1 (en) 2003-07-31
DE502004004222D1 (en) 2007-08-16
ATE366396T1 (en) 2007-07-15

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