EP3201119B1 - Device and method for filling a container without measuring device - Google Patents

Description

The invention relates to a filling device which operates without measuring means, and to a method for measuring medium-free filling of a container with fluid using the filling device.

Filling devices and methods for filling containers are known in various embodiments. In the case of liquids such as wine or even chemicals, it is often impossible to prevent the liquid from being exposed to the ambient air and resulting in undesirable gas binding, gas exchange or gas introduction, which may result in a change in the quality of the liquid.

In the prior art are methods like that in the DE 10 2011 1005 60 B3 disclosed, in which the process for a device for the effective gas-free filling of a container with a certain intended for consumption liquid is described. The implementation of the method there provides that in the container initially at least one balloon-like, expandable body is introduced, which is arranged on a tube and enclosing this tube. By this balloon-like body is allowed to expand after insertion into the container, it fills the interior of the container completely and displaces ambient air from the container. Then liquid is allowed to flow into the container and at the same time displaces the expansion medium through the tube from the balloon-like body. After the container has been completely filled, the balloon-like body is removed again from the container and made available for the next filling operation.

In order to always be able to fill the same capacity in the containers, in processes such as the above, for filling the container with a desired filling volume or nominal volume of the liquid by means of a control instrument, usually a magnetic-inductive flow meter (MID sensor) , pre-metered sensor-controlled or filled by means of a piston system in the respective container.

1. a) dicht Aufsetzen des Aufsatzes mit seiner Unterseite auf ein Behältnis,
2. b) einströmen Lassen von Füllfluid in eine Dosierkammer mit dem Nennvolumen des Behältnisses, bis das Nennvolumen mit Füllfluid geflutet ist, und
3. c) Öffnen des Flüssigkeitsventils und einströmen Lassen von Füllfluid in das Behältnis, danach Schließen des Flüssigkeitsventils.

For manufacturing reasons, containers, such as bottles, may be provided for receiving the same volumes, but may have differently thick bottoms or walls, so that the actual volume of the container varies slightly in the case of glass bottles usual capacity for wine, etc. in the range of up to 10 ml, which causes the MID always correctly metered volume leads to different filling heights, which is visually very clearly in the area of the bottle neck - and so affects the behavior of the buyer. The DE 40 38 890 A1 discloses an apparatus according to the preamble of claim 7 and a method comprising the following steps:

1. a) sealingly placing the attachment with its underside on a container,
2. b) pouring fill fluid into a metering chamber having the nominal volume of the container until the nominal volume is flooded with fill fluid, and
3. c) opening the liquid valve and allowing filling fluid to flow into the container, then closing the liquid valve.

In the method and the device according to the D1, however, the displacement element is not introduced into the container, so that no running after the attachment volume takes place after pulling out of the displacement element.

Based on this prior art, it is an object of this invention to provide a method for filling containers, in which a constant filling level can be achieved even with different container shapes.

This object is achieved by a method having the features of claim 1.

The further object of providing a simple and reliable filling device for carrying out this method is achieved by the filling device having the features of independent claim 7.

Preferred embodiments of the method and the filling device are set forth in the subclaims.

The inventive method for measuring medium-free filling of a container with a fluid is carried out according to a first embodiment with a filling device comprising an attachment with a predetermined volume V _A. The article has a valve cap which has a gas valve and a liquid valve with valve seat in a housing. The valve seat surrounds, forming an annular gap, a displacement element which can be displaced longitudinally relative to the housing.

1. a) dicht Aufsetzen des Aufsatzes mit seiner Unterseite auf ein Behältnis, dabei Einführen des Verdrängungselements in das Behältnis.
2. b) Öffnen des Flüssigkeitsventils und einströmen Lassen von Füllfluid in ein Nennvolumen V_Nenn des Behältnisses, das durch das Volumen V_A des Aufsatzes und ein Volumen V_B des Behältnisses gebildet wird, bis das Nennvolumen V_Nenn mit Füllfluid geflutet ist, danach Schließen des Flüssigkeitsventils.

The method according to the invention comprises the following steps:

1. a) sealingly placing the attachment with its underside on a container, while introducing the displacement element in the container.
2. b) opening the liquid valve and allowing filling fluid to flow into a nominal volume V _{nominal of} the container formed by the volume V _{A of} the cap and a volume V _{B of} the container until the nominal volume V _{Nenn is} flooded with filling fluid, then closing the fluid valve ,

In general, even the volume V _{FV of} the liquid valve is flooded, but this volume is pushed out when closing the liquid valve from this again and is therefore not to be considered in the well-known valve handling, as it does not lag. If this volume remains in the attachment due to the appropriate valve design and handling and is not pressed back when closing in the direction of the fluid source, it can also flow in and has to be considered mathematically.

Then in step c), the extraction of the displacement element from the container, and run after the volume V _VA (and only in special cases, the volume V _FV ) in the container, the volume V _VA or in the special case, the volumes V _VA and V _FV is as large as the volume V _{balloon of} a portion of the displacement element in the flooded section, so that the same containers are filled with equally high levels.

After this, the container can be disconnected from the attachment and closed. The procedure can be repeated from the beginning.

The method is therefore "measuring-medium-free", which means in the sense of the invention that a desired amount of fluid is provided only by formation of defined volumes of individual components which, taken together, form the nominal volume V _nominal , as will be explained further below. In this case, this nominal volume V _nominal corresponds to the volume of a predetermined _nominal height to be filled into the respective container.

"Equal containers" here means vessels that are identical except for production-related deviations of the wall and floor thickness.

A development of the invention may comprise the step a '), after which, after insertion of the displacement element, a balloon-like body, which is slipped over a pipe, by supplying an expansion medium, can be expanded until the container to be filled and in particular the nominal volume V _{Nenn is} lined ,

"Until the container to be filled is lined" here means that the balloon-like body lines said volumes such that a gap between the inner wall and the surface of the balloon-like body remains, which the fluid flow, respectively, the air displacement along the balloon-like body during expansion before the filling allowed, even if this creates when expanding to the wall. Gas pockets in the container are thus avoided. It does not have to be provided in any case that a gap between the balloon and container wall remains.

"Fluids" can be liquids such as drinks or chemicals; "Expansion media" in turn gases such as air or inert gases or liquids, which are suitable to fill the respective balloon-like body.

Further, in a further step b '), after opening the liquid valve, the balloon-like body may be collapsed, by releasing a vacuum applied to the container, which has sucked the balloon against the inner wall, or by allowing the expansion medium to escape from the balloon-like body again becomes, happens; while continuing to let the fluid flow into the container.

The two additional steps allow the process to allow sensitive fluids to be filled, as the air in the reservoir can be squeezed out by inflating the balloon-like body or balloon, leaving little room for air to come into contact with the fluid. Furthermore, other fluids, such as residual water from a rinsing process or the like, can be removed from the container by the balloon before the actual filling fluid is introduced.

It is in particular the patent applications DE 10 2014 008 234 such as DE 10 2012 021 775 A1 are explicitly incorporated and referenced in the contents, wherein filling devices are disclosed, which are filled with the balloon-rod principle or emptied.

In step b), the liquid valve closes after the fluid that is filled, the container and also the valve has completely filled (passive control). Alternatively, the fluid may trigger a valve mechanism when active control is provided. For this purpose, the liquid valve may be a pressure valve. In order to prevent too much fluid from being filled in or too high a pressure within the filling device, it may further be provided that in a step b ") the liquid valve is closed when a predetermined pressure is reached in the filling fluid circuit For this purpose, a passive component such as a pressure relief valve may be connected to a fluid supply line.

By the embodiment according to the invention, it is possible to achieve a constant nominal height h _nominal in that a nominal volume V _nominal varies container-specifically or is adjusted. A nominal height to be achieved in each container corresponds to a nominal volume V _nominal specific to each container shape.

The nominal volume is determined substantially from the nominal height h _Nominal up to where the container is to be filled. Important for compliance with the nominal height h _nominal at each filling is now that the displacement element protrudes a certain length h _balloon into the container and just displaces a thus formed volume accordingly. In order to achieve the nominal volume, it is necessary to replenish the volume displaced by the displacement element in the container. This can be achieved according to the invention by reflecting this volume in the components of the article. In short: The displacement volume of the displacement element in the container corresponds to the residual volumes in the attachment minus the displacement element.

The void volumes are composed of different volumes of the components of the filling device:
Thus, a volume V _{B of} the container enters the nominal volume V _nominal to be reached. Furthermore, in the article through a through hole and various recesses a volume V _{A of} the essay can be formed. Also within the liquid valve, a volume V _FV can be formed. The displacement element together with the balloon-like body in its unexpanded form occupies in the container and the remaining components of the filling system a volume V _balloon , which volume is not to be counted in the aforementioned volumes, but is to be subtracted as the displacement volume. If the balloon-like body is thick-walled, results in a correspondingly larger displacement volume than in a thin-walled material. The result is the formula: $${\mathrm{V}}_{\mathrm{nominal}}={\mathrm{V}}_{\mathrm{B}}+{\mathrm{V}}_{\mathrm{A}}-{\mathrm{V}}_{\mathrm{balloon}}.$$

Respectively. in the special case described above, when the liquid is not forced back into the fluid source when the valve is closed by a corresponding design of the valve attachment: $${\mathrm{V}}_{\mathrm{nominal}}={\mathrm{V}}_{\mathrm{B}}+{\mathrm{V}}_{\mathrm{A}}+{\mathrm{V}}_{\mathrm{FV}}-{\mathrm{V}}_{\mathrm{balloon}}$$

The total volume of the various attachment components excluding the container volume corresponds to the volume displaced by the tube including the balloon-like body as a whole within the filling device. In other words, the volume displaced by the displacer including the balloon-like body within the receptacle is the same size as the residual volumes formed by the attachment components without the displacer. When pulling out the displacement element, and thus possibly also the balloon-like body, just this residual volume can slip and fill the container.

The stated volumes within the attachment can also be adapted to the specific container by providing compensation volumes in the valve attachment or in other suitable regions of the filling device. Thus, several or even only a volume compensation element in the filling or liquid valve can be mounted below or above this. The nominal volume can thus be matched to any container shape, which makes it possible to fill different container shapes same capacity with the required nominal volume so that always the same filling level is achieved in the different containers.

To use a further volume compensation element container-specific and easy in the process, it can be provided that the article further comprises a volume compensator which is fluidically coupled to the valve cap, wherein the volume compensator in step a) with its underside placed tightly on the empty or full container can be. In general, the volume compensator can also be arranged above the valve cap. The volume compensator above the filling valve is basically the same design as below the filling valve. He would then be arranged as an "intermediate piece" between the balloon intake and the filling valve. The balloon retainer is then still the topmost point in this case and holds the balloon concentrically in the volume compensator and the fill valve. Thus, the balloon then still displaces all air from the volume compensator and the filling principle is obtained as in the variant in which the volume compensator sits directly on the vessel.

The interior of the volume compensator forms a predetermined volume WK, which may be fixed in one embodiment. As a result, the volume of the cap VA can be composed of a volume VVA formed by the valve cap and the volume WK of the volume compensator: $${\mathrm{V}}_{\mathrm{A}}={\mathrm{V}}_{\mathrm{VA}}+{\mathrm{V}}_{\mathrm{VK}}$$

The volume of the volume compensator can be adjusted in a further embodiment by suitable volume change means for different container sizes and thus be variable. "Variable" here means that not only a fixed, invariable volume is formed by the different cavities in the filling device, and thus a filling is limited to one possibility, but the respective volumes on the containers to be filled or the immersion depth of the displacement element can be matched. For this purpose, the volume compensator can also be multi-part, in particular two-part, and form different volume sizes depending on the choice of the assembled elements.

The active volume of the respective compensating element can also be variable if the device is to be retrofitted for the filling of different containers. A variable displacement can be achieved, for example, by means of sliders, a guide roller or variable / different wall thickness, the contour of a stopper and a matched shape of the balloon-like body. This also CO ₂ -containing liquids can be filled without it to the so-called "gushing" (foaming due to sudden pressure relief) comes.

A constant filling level, d. H. a certain filling volume per container can thus be achieved for different containers by specific volumes are formed within the essay. Thus, the volume to be filled can be adjusted by the volume compensator depending on the container to be filled. Also, additional compensation volumes can be provided within the valve cap, which can be formed for example by recesses or grooves in a through hole of the valve cap.

In a further embodiment, the invention provides that in step a ') the expanding balloon-like body has a longitudinal web along its circumference. This extends in the longitudinal direction of the balloon-like body, so that in the expanded state of the balloon-like body between the surface of the balloon-like body and an inner surface of the attachment, a gap is formed along the balloon length. Also, the balloon-like body with respect to its number of webs could have significantly more webs than the least necessary to fulfill a web to allow less liquid to flow into the bottle or to increase the displacement of air in the container or a liquid. Also, grooves or other facilities may be provided for this purpose be. Among the possible embodiments of this body is on the DE 10 2014 008 234 directed.

The contribution of the balloon-like body to the volume V _balloon is essentially given by its wall thickness. Depending on which type of container is to be filled or how large the volume to be filled, the balloon-like body may have a wall thickness of several microns to several millimeters.

An embodiment of a measuring device-less filling device according to the invention for carrying out the aforementioned method for achieving a same level in the same containers according to claim 7, inter alia, comprises the following components:
The filling device has an attachment with a predetermined volume V _A , which sits tightly on the container and comprises a valve cap. The valve cap itself has in a housing on a gas valve and a liquid valve, each having a valve seat. The valve seats surround a displacement element to form an annular gap, wherein the displacement element can be moved longitudinally relative to the housing axially. With the liquid valve, a fluid supply line is further connected, which may be filled with a fluid to be filled. The filling device has no volume measuring device in the fluid supply line and has no level height measuring device.

The aforementioned filling device is thus "without measuring means", which means in the sense of the invention that fluid can be metered only by providing defined volumes of individual components which, taken together, form the nominal volume V _nominal , as already explained above. In this case, this nominal volume V _nominal corresponds to the volume of a predetermined _nominal height to be filled in the respective container.

It may further be provided according to the invention that the attachment has a volume compensator with a predetermined volume V _VK , which is fluidically coupled to the valve cap and can be placed on the container in a fluid-tight manner. The volume compensator can serve as a volume compensation element whose internal volume can be fixed or variable.

The displacement element may have different suitable embodiments. In an embodiment according to the invention of the device for filling a container with a liquid it is provided that the displacement element can be a tube with a balloon-like body, wherein the balloon-like body can partially or completely envelop the tube. However, the principle according to the invention basically also works without a balloon, so that, for example, it can also be provided that the displacement element is a simple tube. Thus, the liquid does not have to be withdrawn directly from the container or filled into it by means of a valve, but can be handled in an improved manner via the following inventive design: For this purpose, the tube can be arranged on a holding section of the valve attachment and positioned concentrically through a passage opening of the holding portion and further through the passages of the valve seats. The tube may protrude in a use arrangement close to a bottom of a given container, so that neither the bottom nor the balloon-like body are damaged. The balloon-like body is pulled with its closed end over the free end of the tube and extends through the valve cap into the holding portion in which it is fixed.

In one embodiment, the balloon-like body in the passage opening of the holding portion by means of a clamping body, which is preferably supported via a spring against the upper portion of the holding portion, fluid-tight manner. By this arrangement, the balloon-like body sits securely on the tube even when pressure acts on the balloon and allows it to expand or unfold. The tube may extend upwardly through a bore and be inextricably received in a mounting stud, which in turn may be releasably coupled to a fluid source, such as a gas source.

A further embodiment of the invention may provide that the gas valve and the liquid valve comprise, in addition to the valve seat, an annular closure part, the valve seat and closure part being movable relative to each other and being arranged coaxially with one another. So that the valve attachment or the volume compensator can be placed in a fluid-tight manner on the container, a seal can be provided on the container-side opening of the respective component which is to denser.

Other embodiments as well as some of the advantages associated with these and other embodiments will become apparent and better understood by the following detailed description with reference to the accompanying drawings. The figures are merely a schematic representation of embodiments of the invention.

Fig. 1

eine Längsschnittansicht einer erfindungsgemäßen Abfüllvorrichtung, und

Fig. 2

eine Längsschnittansicht einer alternativen Abfüllvorrichtung mit einem Volumenkompensator.

Showing:

Fig. 1

a longitudinal sectional view of a filling device according to the invention, and

Fig. 2

a longitudinal sectional view of an alternative filling device with a volume compensator.

The filling device 10 according to the invention, which in Fig. 1 is shown here is used to fill a bottle 1, but can in principle be used for any other container.

In this case, the filling device 10 has an attachment which comprises a valve attachment 2. Through the valve cap 2, a tube 3 is passed here as a displacement element, over which a balloon 4 is slipped. The balloon 4 is designed such that it remains in an expanded state between its surface and an inner wall of the valve cap 2 a gap. In Fig. 1 the balloon 4 is not expanded.

In this case, the tube 3 protrudes from the bottom of the valve cap 2. The valve cap 2 is designed so that it sits with its underside close to the bottle 1 (see Fig. 1 ). In Fig. 2 It is shown that between bottle 1 and valve cap 2, a volume compensator 2 'is placed tightly on the bottle 1. This is mainly used to compensate for different volumes of different types of containers. In the Fig. 1 and 2 In each case, a method step is shown, in which the container 1 has just been connected fluid-tightly to the valve cap 2, and the balloon 4 is about to be expanded.

The balloon 4 is fluid-tightly connected to it in an upper end region of the tube 3. There, a ball 16 is pushed onto the tube 3, wherein the balloon 4 is pulled over this ball 16. The ball 16 is seated in a passage opening 18 of a holding portion 17, wherein the balloon 4 is clamped between the ball 16 and the upper edge of this passage opening 18. Through the ball 16, a through hole 19 through which the expansion medium flows through the tube 3 in the balloon 4 extends.

The balloon-like body 4 may be a tube formed of a thermoplastic, elastomeric material, which at its lower end, that is, the end, provides for positioning in the container 1 to be filled or emptied is closed. It thus forms a kind of expanding body, which can be inflated by means of an expansion medium, for example air. The tube has in its unexpanded form an inner diameter which corresponds to the outer diameter of the tube 3 in order to displace the smallest possible volume. The material composition is chosen in terms of wall thickness and elasticity so that the inflated by inflation hose occupies a balloon shape, which fills the inner volume of the container to be filled 1, respectively the interior of the previously connected components, in particular the volume compensator 2 'and the valve cap 2.

When the balloon 4 is expanded, it not only dresses the container 1, but also the interior of the valve cap 2, d. H. he puts himself from the inside to a through hole 11 and and the valve seats 7, 8 at. In this way, the valve cap 2 before filling completely by ambient air or other, already filled fluid in the case of refilling, be released, so that here, the filling fluid does not come into contact with ambient air.

The valve cap 2 has a liquid valve 5 and a gas valve 6, each with an annular valve seat 7, 8 and corresponding thereto annular closure parts. The valve seat 7 is stationary with respect to a container 1 to be filled, wherein the valve seat 8 is designed to be displaceable with respect to a valve longitudinal axis. The two closure parts are aligned with one another and surround the tube 3, forming a respective annular gap 7 ', 8'. The closure parts of the two valves 5, 6 are arranged in a common support 12, which has been displaceable long enough for the valve longitudinal axis. The valve cap 2 can be multi-part and to be divided into different units. The units are surrounded by housing parts 21, 22, 23, 24. In this case, the different units in the housing parts 21, 22, 23, 24 are moved relative to each other along the valve longitudinal axis to open individual valves 5, 6 or both. Further, a liquid supply line 15 (figuratively shown only schematically) connected to the valve cap 2.

At the free end of the tube 3, but still surrounded by the balloon-like body 4 is a stopper 13, which serves to protect the sensitive bottom 14 of the container 1, and to prevent the free end of the tube 3 from bouncing against this base 14 , The stopper 13 is made of a flexible material, such as rubber.

The volume condenser 2 'off Fig. 2 is a substantially cylindrical body having a predefined volume V _VK in its interior. This volume serves to receive a portion of a defined filling quantity, which is displaced by the tube 3 required for filling together with the balloon-like body 4 from the container 1 which is actually to be filled. Accordingly, this volume of liquid absorbed in the volume condenser 2 'can follow after pulling out the tube 3.

The different components now form volumes of different sizes:
The container 1 encloses a volume V _B. The inner bore 11 of the valve cap 2 forms a volume V _VA . Further, through the liquid valve 5, a volume V _VF and, if as in Fig. 2 a volume condenser 2 'is used, formed by this a volume V _VK . All these volumes should be totaled to obtain a total volume.

The volume V _balloon formed by the tube 3, including the balloon-like body 4, must be subtracted from the sum of all other volumes, since this volume displaces fluid within all components, including the container. This results in a nominal volume V _nominal = V _B + V _VA + V V + V _{FV VV balloon} whose volume size corresponds to the actually filled fluid. The sum of the volumes of the various attachment components corresponds to the volume V _{Bal lon} within the filling device displaced by the tube 3 as a whole. The nominal volume V _Nenn is reached by the _nominal height h Nom to be achieved, as in Fig. 1 shown by way of example. The displaced by the balloon-like body 4 volume in the container 1 is determined by the length h _balloon , as far as the tube 3 projects with the balloon-like body 4 in the container 1. The displacement volume of the components projecting in the container 1 corresponds to the residual volumes in the attachment minus the displacement element. It thus results per container 1 always the same level height at (minimum) varying filling.

The above-mentioned method thus proceeds as follows, for example, wherein the sequence with each embodiment, be it with or without a volume condenser 2 ', is the same:
An underside of the attachment is placed in a fluid-tight manner on the respective container 1. After that, the displacement element, ie the tube 3 with the balloon-like body 4 introduced, this being introduced so far that the stopper 13 does not touch a bottom of the container 1 or touches it. Further, the gas valve 6 is opened, so that the expansion medium can penetrate into the balloon-like body 4 and expand it, whereby it removes a large part of the ambient air from the container 1. The balloon-like body 4 rests on the inner wall of the container 1 in such a way that along its length, where there are webs, a gap remains, which provides a fluid or air path.

As soon as the balloon-like body 4 fills the internal volume formed by the individual cavities of the components, the liquid valve 5 is opened. Due to the gap present, fluid can enter it. Meanwhile, the expansion medium is discharged from the balloon-like body 4 again, so that it contracts and rests against the tube 3. The remaining volumes, which are formed in the attachment, in particular in the valve cap 2 and a volume compensator 2 'may be filled with fluid, so that the container 1 except for the portion of the tube 3 together with the balloon-like body 4, in the liquid protrudes, is filled. The volume which occupies the tube 3 together with the balloon-like body 4 in its unexpanded state within the container 1 corresponds exactly to the volume which is formed by the abovementioned residual volumes in the attachments, the liquid valve 5, etc.

Once these volumes are flooded, the liquid valve 5 is closed and the tube 3 pulled out. In this case, the aforementioned fluid-filled volumes "slip" and flow into the container 1. It is achieved that exactly the aforementioned section now also filled with fluid and per filling a constant nominal volume V _nominal and thus a correlating continuous nominal height h _nominal can be achieved. However, the aforementioned statement relates only to one and the same container, namely in the sense that with the inventive device well repeatable filling accuracy can be achieved. In the case of different containers, according to the invention, however, an automatic adjustment without measuring means takes place so that they are filled with different volumes in order to always obtain the same level.

LIST OF REFERENCE NUMBERS

1

container

2

valve cover

2 '

volume compensator

3

pipe

4

Balloon-like body; balloon

5

liquid valve

6

gas valve

7

valve seat

7 '

annular gap

8th

valve seat

8th'

annular gap

10

filling device

11

Through Hole

12

carrier

13

stopper

14

ground

15

fluid supply line

16

Bullet

17

holding section

18

Through opening

19

Passage bore

21

First housing part

22

Second housing part

23

Third housing part

24

Fourth housing part

V _nominal

nominal volume

V _B

Volume container

V _VA

Volume valve attachment

V _FV

Volume liquid valve

V _VK

Volume volume compensator

V _balloon

Volume tube including balloon-like body

h _balloon

Height balloon

h _nominal

Nennfüllhöhe

Claims (11)

1. Method for the filling of a container (1) without measuring equipment through the use of a filling device (10) that comprises an attachment with a predetermined volume, whereby the attachment

   - comprises a valve attachment (2) that comprises a gas valve (6) and a liquid valve (5) with valve seat (7, 8) in a housing (21, 22, 23, 24),

   - whereby the valve seat (7, 8) surrounds a displacement element that can be shifted relative to the housing in longitudinal-axial direction, while forming an annular gap (7', 8'),

   comprising the steps of:

   a) tightly attaching the attachment, by its underside, onto a container (1), while concurrently inserting the displacement element into the container (1)

   b) opening the liquid valve (5) and allowing filling fluid to flow into a nominal volume V_Nenn of the container made up by the volume V_A of the attachment and a volume V_B of the container until the nominal volume V_Nenn is flooded with filling fluid, followed by closing the liquid valve (5), and

   c) pulling out the displacement element from the container (1) and allowing volume V_A to also flow into the container (1), whereby the volume V_A is equal to the volume V_Ballon of a section of the displacement element in the flooded section,

   such that identical containers (1) are filled to identical filling levels.
2. Method according to claim 1,
   whereby
   the attachment further comprises a volume compensator (2') that is fluidically coupled to the valve attachment (2),
   whereby the attachment in step a) is preferably tightly attached onto the container (1) by the underside of the volume compensator (2').
3. Method according to claim 1 or 2,
   comprising the step of:

   a') after insertion of the displacement element, allowing a balloon-like body (4) that is fitted over a tube (3) to expand until the container (1) to be filled is lined, whereby the [step of] allowing the balloon-like body (4) to expand takes place by supplying an expansion medium or by applying a vacuum to the container (1).
4. Method according to claim 3,
   comprising the step of:

   b') after opening the liquid valve (5), allowing the filling fluid to flow in more and allowing the balloon-like body (4) to contract, preferably allowing the expansion medium to flow out of the balloon-like body (4).
5. Method according to at least one of the claims 3 or 4,
   whereby the expanding balloon-like body (4) comprises, along its circumference, at least one longitudinal fin that extends in the longitudinal direction of the balloon-like body (4) such that, in the expanded state of the balloon-like body (4), at least one fluid flow path, preferably gas flow path, extending along the balloon-like body (4) is formed in step a) between the surface of the balloon-like body (4) and an internal surface of the attachment.
6. Method according to at least one of the claims 1 to 5,
   comprising the step of:

   b") closing the liquid valve (5) when a predetermined pressure is reached in the filling fluid cycle.
7. Filling device (10) without measuring equipment for the implementation of the method according to at least one of the claims 1 to 6,
   having an attachment with a predetermined volume V_A that can be tightly attached onto the container (1) and has a valve attachment (2), that comprises

   - a housing (21, 22, 23, 24) as well as

   - a gas valve (6) and a liquid valve (5), which each comprise a valve seat (7, 8), and

   whereby the valve seats (7, 8) surround a displacement element while forming an annular gap (7', 8') that can be shifted in longitudinal-axial direction with respect to the housing (21, 22, 23, 24),

   - whereby the liquid valve (5) has a fluid supply line connected to it,

   - and whereby the filling device (10) comprises no volume measurement device and no filling level measuring device in the fluid supply line,

   characterised in that
   the displacement element is being inserted into the container while the attachment is attached.
8. Filling device (10) according to claim 7,
   characterised in that
   the attachment has a volume compensator (2') with a predetermined volume VVK that is fluidically coupled to the valve attachment (2) and can be attached onto the container (1) such as to be fluid-tight.
9. Filling device (10) according to claim 7 or 8,
   characterised in that
   the displacement element
   is a tube (3) with a balloon-like body (4), whereby the balloon-like body (4) surrounds the tube (3) at least in part,
   whereby the tube (3) is arranged on a holding section (17) of the valve attachment (2) and positions itself concentrically through a passage opening (19) of the holding section (17) and, further, through valve seats (7, 8) and their ring-shaped closure parts and is designed to project, in an arrangement for use, to the proximity of a floor (14) of a given container (1), and whereby the balloon-like body (4) is pulled, by its closed end, over the free end of the tube (3) and extends through the valve attachment (2) into the holding section (17) and is attached in same.
10. Filling device (10) according to at least one of the claims 7 to 9,
    characterised in that
    the balloon-like body (4)

    - is formed by a hose that is formed by a thermoplastic elastomeric material, preferably a TPE extrudate, and is closed on one end, whereby the closure of the hose preferably is formed by an end-piece that is welded to the hose material and is inserted into the hose end, preferably a cylindrical end-piece, particularly preferably a cylindrical PE end-piece, and whereby the hose comprises at least one longitudinal fin and/or at least one longitudinal groove, preferably two or more longitudinal fins or grooves along its length or

    - is a body that is formed from a non-elastomeric material and is non-open on its lower end and comprises at least one longitudinal fin and/or at least one longitudinal groove, preferably two or more longitudinal fins or grooves along its length and/or

    - has a tube-shaped section whose internal diameter and length correspond to an external diameter of a displacement element that is predetermined for use in the filling device according to at least one of the claims 7 to 9 such that the hose-shaped section can be pulled onto the displacement element without clearance, and

    has a section that can be unfolded and has an appropriate shape that is designed to touch against an internal wall of the container (1) in an unfolded state.
11. Filling device (10) according to at least one of the claims 7 to 10,
    characterised in that
    a gas valve (6) and a liquid valve (5) comprise a ring-shaped closure part next to the valve seat (7, 8), whereby valve seat (7, 8) and closure part can be moved relative to each other and are arranged coaxial with respect to each other.

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