THERMALSTATIC GIVER

The invention concerns a thermalstatic giver, in particular for temperature-adjusting valves or for affecting such by remote control, for example radiator valves, with an essentially inelastic container with compressable bellows and a piston to would drive out the rule movements, whereby the area between container and bellows hermetically locked and with a medium is filled with good Wärmeausdehnungskoeffizient. Such givers are primarily intended for temperature-adjusting valves, for example radiator valves. A multiplicity of different versions of thermostatisehen givers is already well-known, among other things prayer with gas filling, liquid filling and wax-like filling of different compositions. Materials, like ethyl ether, contain the prayer filled with gas and liquid acetone u.dgl. and are for sealing stops completely of metal parts, which are soldered together, made. This is a very difficult procedure, which raises the price of the production substantially. Nevertheless the result is a product, which is disturbance susceptible and a limited life span has. Apart from the fact the handling connected to health risks with most which are applicable gases and liquids are with hygenic problems and partly even. In addition the gas-filled givers supply a small adjusting force and a short stroke. The latter is also characteristic weakness for the givers filled with liquid. A valve for fluids, preferably a thermalstatic radiator valve or a valve with thermalhydraulic drive is well-known from the DE-OS 2428511. During this execution a temperature sensor head with a topfförmigen hood is intended, which inward tubular feather/spring bellows follow. Between the hood and the feather/spring bellows a hermetically final area is formed, which is filled with an expansion liquid. In place of the filling liquid also a gas can be used or however it is intended a steam liquid system. Also during this execution with more flüssigkeitsoder gas-filled givers admitted disadvantages arise. Givers with wax fillings any kind result in an all too large hysteresis in the case of large Hublänge/°C due to large, construction dependent internal friction. Such well-known givers with wax filling possesses a small and short inelastic metal container, whose edges are ausgekragt first 3D, in order to stretch in this way around a rubber below, which shields a wax filling in the container. Subsequently, these edges seize around the flange of a tubular body, which exhibits a piston at its free outside end, whereby between the piston and the diaphragm a loose Gummipfropfen is arranged, in order thermalstatic movements of the wax fillings from the diaphragm to the piston to transfer. This is a complicated construction, which is complex disturbance-susceptibly and - like naturally all other well-known giver constructions - in the production. Regarding the applicability it lets itself say that gasund the givers filled with liquid can directly on one valve which can be affected be mounted, in addition, for remote control about a capillary tube is suitable. The before-well-known wax-filled givers are suitable not for the remote control and can be attached exclusively directly on a valve. The function requirements, which a good giver is to fulfill today, are the following: Large Hublänge/°C in the temperature range of control concerned, large adjusting force, low hysteresis, small dead time, i.e. the time the temperature, suitable time constant, i.e. the time the temperature up to the attitude, changed by the reaction of the giver to, to for example 63% of the final value, changed by the entrance of a temperature change up to the reaction of the giver on, which with radiator valves 20 to 30 min amounts to usual, a suitable range of control, and applicability in principle is to that with radiator valves for example between 8 and 26°C for remote control. Except these enumerated function requirements also manufacture requirements are set up, like e.g. manufacturing methods, which a simple, a cheap and fast mass production as well as use of from more hygenic or health view harmless components to permit. These requirements do not fulfill the before-well-known prayer in combination. Purpose of the invention is it to create thermalstatic prayer at least mainly the enumerated requirements in combination fulfilled. In addition it is incumbent on the invention to improve and further develop in further regards the state of the art in this area. These tasks are solved in accordance with the invention by the fact that the medium between container and bellows admits as of wax or a wax mixture consists, and that preferably the bellows consist of plastic, in particular of Azetal plastic, and by form blisters is formed. Such prayers united in itself in ideal way all Funktionsund of manufacture requirements and is relatively uncomplicated, so that a simple, a fast and cheap production and assembly are given. Exact calculations amounted to shown that thermalstatic givers are producible to costs in accordance with the invention, the only 1/3 to 1/5 of the costs comparable before-well-known giver. Attempts showed that the hysteresis of well-known wax elements amounts to 0.6 to 0,7°C, with conventional Flfissigkeitselementen 0.3 to 0,6°C and with givers in accordance with the invention 0.2 to 0,3°C, which proves the superiority of the invention. All these values are measured with one on a radiator valve installed thermostat, what means that also the friction is enclosed in the valve and mentioned above differences are from there obviously still more grSBer so that still greater importance is attached to the invention. The giver according to invention sets off in so outstanding way from well-known remarks from givers, whereby this effect is obtained evenly by the combination of the use of wax as medium and the arrangement of one plastic bellows that the professional world is surprised by this new solution. Only by the use of wax and/or an awake SMI seeing with straight this thermalstatic Gehern is reached an optimal impact, since the wax and/or the wax mixture has optimal coefficients of expansion. By it a very large adjusting possibility is reached and on the other hand a low hysteresis, which cannot be achieved with all well-known execution variants also approximately. The straight use of wax and/or a wax mixture as medium for a thermostatisehen giver creates an optimal solution. It is to be emphasized in this connection that other filling media, as for example gases or liquids either by plastic bellows through diffuse and/or these fillings react with the plastic as such, so that the bellows sooner or later lose its characteristics and become useless. The arrangement of wax or wax mixture as filling medium and also planning bellows from plastic does not only represent a purposeful material choice, but these two materials stand in a relationship to each other, which underlines the purposeful combination of these two materials. The two characteristics in this combination are fundamental again and bring a substantial progress in the building of givers with itself. The bellows of the giver in accordance with the invention are made of plastic, u.zw by a form blow moulding. This means that the thickness of the bend at the edges of the successive folds of the bellows is smaller than the thickness of the straight fold part. The main movement when pressing the bellows together takes place in the range of the bends, whereby the places lying between them work according to kind of a diaphragm spring. This lends the same outstanding spring action to the plastic bellows as a number of successive Tetlerfedern. In contrast to it metallic bellows with a continuous same material thickness are formed. This causes in connection with the small elasticity of the metal execution that a metal bellow is many slower in its motion and can be much more easily deformed. During such an metal execution the distance between two folds is many smaller than the distance of the internal ends of the buckling between these folds, so that the danger exists that the even surfaces come rapidly together to the plant and form thus a final annular space. Plastic bellows, in particular from Azetal plastic have a substantially better feather/spring function as a metal bellow. Furthermore a metal bellow is much more easily compactible or expandable, if it exhibits flat-parallel fold sections. It is given from there also a very small stroke length of such a metal bellow. In the case of full utilization of the stroke length or in the case of an overloading from there lasting deformations result. Plastic bellows in accordance with the invention can be designed in such a way that an accordingly large angle between the successive folds can be formed. As a result of it a large stroke length does not arise and due to the unrestricted elasticity along the whole stroke length develops a danger of a lasting deformation. Plastic bellows in accordance with the invention have larger rigidity than a metal bellow and can from there larger forces transfer. Further a favourable possibility of the lagging results on use of plastic bellows. For example with a radiator valve the piston rod of the thermoplastic giver gives again and again cause for a heat transmission of the radiator, which however for a normal function is unwanted. With application of a metal bellow this warmth will transfer again directly to the medium resting against the exterior of the metal bellow. With the giver according to invention only a much smaller portion of the warmth from this piston rod can be transferred opposite a metal bellow to the wax filling. The Waehsfüllung is affected practically exclusively from the outside from there, thus by outside a metal container surrounding the bellows, whose whole internal surface with the wax filling is located in contact. It is thus a fast reaction of the giver possible without Nebeneinflüsse from the radiator valve. It pointed itself that evenly straight can be solved by the combination of the use of wax as medium between container and bellows and the training of the bellows from plastic the task according to invention placed, u.zw to a which is not obvious way, which is provable by appropriate technical effects in addition. Furthermore according to invention it is suggested that the fusion point of the Waehses or the wax mixture lies between +12 and +25°C, which temperatures are preferably the threshold between firmer and halfliquid and/or half liquid and easy flowing state of aggregation. It took place via the invention a selection of a special kind of wax, with which evenly the fusion point is between the indicated values, whereby by the additionally describing indication of the state of aggregation it is stated that it depends straight on this special temperature range. Also a wax and/or a Waehsgemisch could be used, which exhibits a fusion point different of the indicated values, whereby then in the indicated range the easy flowing or also the firm state of aggregation would be reached already, but not between these lying state of aggregation enriches. It is favourable from there the straight choice of this special wax and/or the wax mixture. The invention is more near described in the following description under reference to the designs. Show: Fig.1 thermoplastic prayer in accordance with the invention for the direct assembly on for example a valve in the profile; Fig.2 an amended thermostatisehen giver in accordance with the invention for remote control in an axial profile and Fig.3 a diagram for clarifying the achievement differences between two before-well-known thermalstatic givers and a thermalstatic giver in accordance with the invention. The giver for the direct assembly on a valve, not shown shown in Fig.1, possesses a container --1-- from unelastisehem material, preferably metal, which preferably possesses a cylindrical cup form, whereby the free container edge --12-- first ausgekragt and then umgebördelt is, in order to re-clamp and embody in following order toward from the container ground to: a circular poetry --4--, the free edge or the open end --13-- bellows --3-- from in particular plastic, preferably Azetal plastic and a bull's eye/target --5-- preferably made of metal with a central hole --14-- for the admission of a piston --6-- made of plastic or metal. The piston --6-- of them can be implemented in the container as straight cylindrical bar, --1-- convenient end itself at the ground --15-- the bellows --3-- falls and to it to be fastened can. The ground --15-- is to the ground --17-- the container flat parallel and on distance arranged. The inside of the bellows --3-- communicated with the atmosphere over that the pistons --6-- with play going around hole --14--, and the area between the bellows and the container is with a wax mixture --2-- actually well-known kind filled. A paraffin mixture with low fusion point lets itself favourable use, whereby still better conditions are possibly available by syntheses or separate ions. The temperature in the wax mixture rises --2-- as consequence of a heating up of the container --1-- on, then the wax mixture changes from the firm into the liquid condition under strong volume increase. Hiebei is squeezed together the bellows and pushes the piston --6-- outside, in order to implement the intended rule movement. At sinking temperature the relationship turned around. Is the piston at the bellows ground --15-- does not fasten, then a feather/spring not shown can the piston lead back and in constant plant at the bellows ground hold. Such a simple execution is also fast, simply and cheaply producible. The piston, the bull's eye/target and the container can be produced fast and simply in masses to extremely low costs, if one avails oneself of not already simple commodity for these parts. Also the bellows do not let themselves preferably produce by forms in plastic easily in masses and also a wax mixture prepare any problems. Concerning assembling the individual parts by the construction according to invention further advantages will receive. So the bellows can be surrounded in accordance with a certain procedure approximately around by an exactly filling out and form-adapted wax mass by immersing into such in liquid condition either in pressed together or expanded form, with or without vibration device for removing from bubbles, so that a unit consists of piston, bull's eye/target, bellows and wax mass is for example after cutting or punching out the latters out in more cooled down and thus rigid form simply into the container importable, its free edge --12-- outward gekragt and possibly also in the connection hieran a piece is forward extended, so that after would bring the descriptive unit the free edge in --12-- easily and simply to be umgebördelt can, in order to keep and embody the descriptive unit safe and completely sealed. Owing to the combination of bellows in suitable plastic material and a wax filling extremely more cheaply and nevertheless completely reliable thermalstatic prayer will receive, which a length of lay and a low hysteresis without its-same possess. Also the dead time becomes importantly smaller than with the before-well-known givers. A further possibility for the production and assembly giver according to invention and of a thermalstatic is given as follows: The container --1-- into a Fixtur not shown with vibration device for fast removing from possibly occurring bubbles one inserts. A suitable wax or a wax filling is filled in at such a temperature that the wax or the mixture is easily liquid, which with +30°C the case is preferably. Then the bellows become --3-- and the metal disk --5-- on a thorn not shown with the help of a suction source not shown attached, which together-sucks also the bellows. Bellows and metal disk are then inserted into the container, on which its collars --12-- over the metal disk is pressed or flanged. This entire Herstellungsoder assembly process can happen automatically. After waiving the negative pressure the bellows expand automatically and displace thereby the easily liquid medium in the container of Bodenund center in the middle of the same, in order to flow in into the areas between the bellows folds on the exterior. Hiedurch a nonporous would bring in of wax od.dgl to cause guaranteed, which can change then depending upon the desired fusion point into halfflowing or even solid state, without any problems. The wax or the wax mixture cannot through-diffuse like a liquid or a gas by the plastic bellows and thus such prayer unanwendbar ever low-power and at the end make. The invention builds thus on for the insight that a wax or a wax mixture which is applicable of the kind here cannot through-diffuse mainly by plastic bellows that such a bellows one niedrigst possible hysteresis and thus greatest possible stroke length possess and that the bellows by wax or a Waehsmischung in liquid or halfliquid condition will surround can, possibly including a vibration device, so that cavities with security are avoided. The invention draws also in computation that one receives in particular during directly on a radiator valve to installing thermostats as little heat transmission as possible from the valve on the giver, at the same time as the thermostat outside temperature changes opposite is sensitive. Also these circumstances are the reason for it that plastic is suggested according to invention as material with small heat guidance ability for the internal giver parts and metal as material with high heat guidance ability for the outside giver parts. Further advantages of plastic bellows, in particular from Azetal plastic are its high exhaustion retaining firmness and its good feather/spring characteristics. In Fig.2 an amended giver is shown in accordance with the invention for remote control. Hiebei lies an agreement with the execution shown in Fig.1 regarding the left giver part shown in Fig.2 --I-- forwards, apart from the fact that the piston --6-- and the hole is missing --14-- in preferably reduced form an end of a capillary tube --7-- takes up itself, to the ground --16-- the implementing part --II-- inside extends. The capillary tube --7-- is sealing into the disk --5-- and/or the container ground --16-- begun, for example by fixed welding. The bellows --3-- the giver container possesses nevertheless in this case in place of a piston a Flüssigkeitsoder gas filling --18--, for example silicone oil. The container --8-- the implementing part --II-- and also its bellows --9-- as well as the disk --10-- and the pistons --11-- preferably possess the same execution as in connection with Fig.1 shown and described. With variations in volume in the wax mixture --2-- become the bellows --3-- in the giver part --I-- affected, so that it is squeezed together or extended. This change becomes over the filling --18-- and the capillary tube --7-- on the implementing part --II-- transferred. In this way squeezing and/or an extension of the bellows together in the implementing part becomes when squeezing together and/or extending the bellows --3-- in the Gebertei! received. The movements of the bellows --9-- become on the pistons --11-- transferred, either at the bellows ground --19-- to be fastened can or in contact with this with the help of a reconducting feather/spring shown one does not hold. Fig.3 shows the clear superiority of a thermoplastic giver in accordance with the invention regarding stroke length and small hysteresis opposite both conventional liquid as also wax-filled thermalstatic givers. Preferably such a wax mixture is selected to a giver according to invention that the fusion point of the mixture lies between +12 and +25°C, so that, special volume increase caused by melting produces a special excursion on the stroke length of the piston. Naturally one can receive a fusion point on almost each desired temperature level by the choice of the composition of the wax mixture and also further intervals between the changed states of aggregation of the mixture, i.e. the transition from firmer to halfliquid and further to easy flowing condition. In preceding descriptive and in the designs execution forms shown are to be regarded only as not limiting examples, which can amend and be supplemented in the context of the invention thought at will.