EP1584601A1 - Filling machine of the rotary type - Google Patents

Abstract

Filling machine comprises a non-controlled gas path with a throttle formed in each filling element. The gas path connects a return gas pipe with a return gas channel common for all the filling elements on the rotor side. Preferred Features: The return gas pipe is connected with a collecting channel common for all the filling elements via a controlled gas path. A container support is assigned to each filling element to lift a container to be filled and to lower the filled container.

Description

The invention relates to a filling machine of continuous design for filling of bottles or the like. Container with a liquid product.

Filling machines of this type are known in numerous designs. Task of Invention is to show a filling machine, which in a simplified and nevertheless reliable training of the filling machine and the filling elements Filling under pressure and at least in principle also a pressureless filling allows. To solve this problem is a filling machine according to the Claim 1 is formed.

All embodiments of the invention have in common that on the rotor the filling machine provided boiler is designed so that he ready machine with the liquid product is only partially filled and the Interior of this boiler thus filled with the liquid contents Liquid space and above it forms a gas space. All versions of the Invention is also common that in the respective filling element in addition to a throttled non-controlled gas path, which is the return gas tube of each Filling element with one for all filling elements or for each group common filling elements and serving as a return gas channel collecting channel connects, a first, controlled gas channel is provided, via which the gas space the boiler controlled by the return gas pipe or with a in this return gas pipe trained channel is connectable. Already with this simplified version are then either a pressure filling (1-chamber pressure filling) as well basically also a pressureless filling possible.

In a further embodiment of the invention is in each filling element in addition to the non-controlled gas path and to the first controlled Gas path a second controlled and throttle having a gas path provided, which is functionally parallel to the throttle of the non-controlled Gasweges is arranged. With this version are by pure driving the Gas control valves and without the replacement of chokes or nozzles optionally at least two filling variants possible, namely a 1-chamber pressure filling or unpressurized filling or a 1-chamber pressure filling or 3-chamber pressure filling (also with inert gas bias).

Alone by appropriate control of the respective liquid valve and the the gas paths controlling gas path control valves is thus an optimal adaptation the filling process to the particular requirements of the filling material to be filled possible, so with a simplified design of the filling machine and the Fillers a wide range of fillings, d. H. especially a broad one Beverage spectrum can be covered.

In a further possible embodiment of the invention, each Filling element in addition to the throttled, non-controlled gas path and the first and second controlled gas path still a third controlled and throttled, i. with a throttle provided gas path, which then functionally arranged in parallel to the throttle of the second controlled gas path is. The gas path control valve of this third controlled gas path is at a Pressure filling constantly closed and at a pressureless filling constantly open so that the gas path control valves of these third controlled gas paths all filling elements of the machine via a single, common control line and / or be controlled via a single, common control which, despite a variety of different filling a very simplified, especially cost-reducing training of Overall machine results.

Fig. 1

in schematischer Darstellung eines der Füllelemente einer Füllmaschine umlaufender Bauart zum Abfüllen eines flüssigen Füllgutes in Behälter bzw. Flaschen, zusammen mit einem Rotor der Füllmaschine und einem am Rotor vorgesehenen Kessel für das Füllgut;

Fig. 2 - 5

Darstellungen ähnlich Figur 1, jedoch bei abgewandelten Ausführungsformen des Füllelementes.

Further developments of the invention are the subject of the dependent claims. The invention will be explained in more detail below with reference to the figures of exemplary embodiments.
Show it:

Fig. 1

a schematic representation of one of the filling elements of a filling machine of rotating design for filling a liquid filling material in containers or bottles, together with a rotor of the filling machine and a rotor provided on the boiler for the filling material;

Fig. 2-5

Representations similar to Figure 1, but in modified embodiments of the filling element.

In FIG. 1, 1 is a filling element which is of a more similar type Filling elements on the circumference of a driven about a vertical machine axis Rotor 2 is arranged. On the rotor 2 is also a boiler 3, for example Ring boiler provided, the boiler interior 4 partially, d. H. up to one Level N level controlled is filled with the liquid contents, so in the Boiler interior 4 an upper gas space 4.1 and a lower liquid space 4.2 are formed. During the filling process, the gas space is 4.1 with the pressure of a Inertgases, for example, CO2 gas applied, which via the connection 4.1.1 is supplied. The liquid product is the liquid space 4.2 of a Supply tank via the connection 4.2.1 supplied.

In the rotor 2 is a vertical machine axis concentrically enclosing and for all filling elements 1 of the filling machine common distributor or Ring channel 5 formed, which via a connection 6 with the gas chamber 4.1 or with connected to the connection 4.1.1 of the gas compartment. In the rotor 2 is a another, the vertical axis of the machine concentrically enclosing and for all filling elements 1 of the filling machine common collection or annular channel 7 provided via a line 8 e.g. vented to the atmosphere and / or with an apparatus for purifying and / or recovering inert gas communicates.

The filling element 1 essentially consists of the filling element housing 9, in FIG which the liquid channel 10 is formed with the liquid valve 11. The latter consists of the with your valve seat in the liquid channel 10th cooperating valve body 12 at an axis coincident with the Füllelementachse FA arranged return gas pipe 13, which by a Actuator 14 for opening and closing the liquid valve 11 to a predetermined stroke in the direction of the axis FA is movable. The Actuator 14 consists in the illustrated embodiment of a Return spring which biases the liquid valve 11 in the open position as well as from a pneumatic cylinder with which the return gas pipe 13 and the Valve body 12 is moved to the closed position and held there.

At the bottom 9.1, the liquid channel 10 forms an annular Dispensing opening 15, of an annular seal 16 and a Centering element 17 is enclosed. In the region of the discharge opening 15 is located the lower, open end of the return gas pipe 13. with the upper, open end opens the return gas pipe 13 in a housing 9 formed in the chamber 18, the via a formed in the housing 9 non-controlled gas channel 19 with the for all filling elements 1 common annular channel 7 is in communication.

In the housing 9, a first, controlled gas channel 20 is further formed, which is between the common for all filling elements 1 annular channel 5 and the in extending the filling element 1 formed gas channel 19 and in which a first, pneumatically controllable gas path control valve 21.1 (gas cylinder) is provided.

In the gas channel 19, a nozzle or throttle 22 is arranged, which has a predetermined Has flow cross-section and is located where the gas channel 20 in the Gas channel 19 opens, namely at the from this confluence with the Ring channel 9 leading portion of the gas channel 19th

The liquid channel 10 is located at its discharge opening 15 remote End with an individually provided for each filling element 1 line 23 with the Liquid space 4.2 connected. In this line 24 is to the volumetric Control of the filling process, a flow measuring sensor 24th intended.

Each to be filled bottle 25 is during the filling process at a Container or bottle carrier 26 held in the illustrated Embodiment, the respective bottle 25 at one below the Bottle mouth formed on the bottleneck radially projecting flange engages behind. The bottle carrier is for raising and lowering, in particular also for pressing the bottle 25 with its mouth edge against the seal 16 in the direction of the axis FA by a predetermined stroke movable, namely controlled by a with the bottle carrier 23 via a not shown Lift rod connected and with a non-rotating with the rotor 2 Control cam cooperating control roller 27. By a compression spring 28 as well by a force acting on a piston 29 pressure in the chamber 18 is the Container carrier 26 biased for the movement upwards, so that at a Pressure filling results in a "self-pressing".

With the filling system of Figure 1 u. a. a 1-chamber pressure filling possible, and Although with the following process steps, wherein the only gas path control valve 21.1 is in the closed position, unless expressly stated below the open position is indicated:

Insert and lift the respective bottle

At the beginning of the filling process, the respective bottle 25 at a Bottle inlet inserted into the lowered bottle carrier 26 and then then raised by the force of the spring 28.

Preloading the bottle

Subsequently, the biasing of the bottle 25 is carried out with the under pressure standing inert gas from the gas space 4.1 or annular channel 5. This is the Gaswegsteuerventil 21.1 open, so that the biasing gas on the open Gas channel 20, the chamber 18 and the return gas pipe 13 in the bottle 25th can flow in. Through the building up in the chamber 18 pressure takes place automatic additional pressing of the bottle 25 with its mouth edge against the seal 16.

The throttle 22 is chosen so that only a relatively small amount of Inert gas flows to the annular channel 7.

fast Fill

With the valve 21.1 still open, the liquid valve 11 is also opened, so that the liquid product through the discharge opening 15 in the further in sealing position with the filling element 1 located bottle 25 flows and this case from the bottle displaced gas via the return gas pipe 13 and then for the most part over the open gas channel 20, the annular channel 5 flows back into the gas space 4.1, while a smaller part of the displaced gas but also via the throttle 22 and the annular channel 7 is discharged.

brake filling

When the liquid valve 10 is still open, the gas path control valve 20.1 closed, so that the gas displaced from the bottle 25 now alone over the throttle 22 and the annular channel 7 can flow.

filling

Once monitored by the sensor 24 a predetermined amount of product in the Bottle 25 is reached, the liquid valve is closed.

Relief and reassurance

After closing the liquid valve 11 via the gas channel 19 and the throttle 22 a relief of the pressure inside the bottle 25 in the Ring channel 7, so then after the relieving by the with the roller 27th co-operating cam on the bottle outlet of the bottle carrier 26th lowered and the filled bottle 25 can be removed.

This 1-chamber pressure filling is particularly suitable for soft drinks and Mineral waters with CO2 content.

FIG. 2 shows, as a further possible embodiment, a filling element 1 a, which essentially differs from the filling element 1 only in that in Housing 9 in addition to the gas channels 19 and 20, a second controlled Gas passage 30 is provided which extends between the chamber 18 and the gas passage 19 extends and in which a second Gaswegsteuerventil 21.2 in series with a Throttle 31 is provided. The gas channel 30 opens into the gas channel 19 at a Part of this gas channel 19 between the throttle 22 and the annular channel. 7 and is thus functionally parallel to the throttle 22nd

With the filling element 1a is the one-chamber pressure filling described above possible, in which only the gas path control valve 21.1 is controlled, in the above for the 1-chamber pressure filling in connection with the Filling element 1 described manner.

With the filling element 1a is still a non-pressurized filling possible. This pressureless filling, especially for filling still water, Juice drinks with preservatives is suitable and in which the Gaswegsteuerventil 21.2 is constantly open and the gas space 4.1 Atmospheric pressure or near atmospheric pressure, carried out with the following Steps:

Insert and lift the respective bottle

At the bottle inlet again the insertion and lifting of the respective Bottle 25 in sealing position against the filling element 1 a.

fast Fill

When the gas path control valves 21.1 and 21.2 are open, the liquid valve 11 becomes open, so that via the discharge opening 15, the filling material flows into the bottle 25 and the air displaced out of the bottle 25 via the open gas channel 20 and the also open gas channel 30 can flow, both via the annular channel 5 in the port 4.1.1 and in the annular channel 7 and on the Line 8 to the atmosphere.

brake filling

For the brake filling the gas path control valve 21.1 is closed so that at still open gas duct 30, the displaced air via the throttles 22 and 31st flows and thereby a braked filling takes place.

filling

Controlled by the signal of the sensor 24, takes place while still open Gaswegsteuerventil 21.2 and closed Gaswegsteuerventil 21.1 the Close the liquid valve 11 and then lowering the filled bottle.

In the above-described types of filling (1-chamber pressure filling or pressureless filling), it is possible, the gas path control valves 21.2 all Fill elements 1 a to connect to a common ring and control line and via this common control line, in the closed loop Condition for the 1-chamber pressure filling and the open state for the non-pressurized filling, so that the filling machine not only in a particularly simple manner solely by controlling the Gaswegsteuerventile 21.1 and 21.2 between the two Füllarten is switchable, but for the Gaswegsteuerventile 21.2 all filling elements 1 a only a single control line and / or a single control is required.

With the filling element 1a is also optionally also a 1-chamber pressure filling or a 3-chamber pressure fill alone by controlling the gas path control valves 21.1 and 21.2 possible. The 3-chamber pressure filling, in which the gas space 4.1 again comprises the pressurized inert gas, then comprises the following Steps:

Inserting and lifting the bottles

At the bottle inlet, the respective bottle in turn with the bottle carrier 26th lifted and with the bottle mouth against the filling element in sealing position brought.

bias

By opening the Gaswegsteuerventils 21.1 the biasing and additional pressing of the bottle 25.

fast Fill

After closing the gas path control valve 21.1 and opening the Gaswegsteuerventils 21.2 takes place, the opening of the liquid valve 11, so that the liquid contents via the discharge opening 15 of the bottle 25 flows and that from the Bottle displaces gas via the return gas pipe 13 and the opened gas channel 30 as well as via the throttle 22 provided in the throttle 19 flows to the annular channel 7 and is discharged from there via the line 8.

brake filling

When the liquid valve 11 is still open, the gas path control valve 21.2 closed, so that the displaced from the bottle 25 gas now only can flow through the gas channel 19 and the throttles 22 in the annular channel 7.

filling

In still closed Gaswegsteuerventilen 21.1 and 21.2 is the Liquid valve controlled by the signal of the sensor 24 closed, so via the gas channel 19 and the local throttle 22 a pre-discharge and Calm down and after the pre-discharge the filled bottle 25 with the Bottle carrier 26 can be lowered.

The 3-chamber pressure filling with the filling elements 1a is u.a. For oxygen-sensitive drinks with low CO2 content, such. B. fruit spritzers, isotonic drinks and wellness drinks, drinks with vitamin C.

FIG. 3 shows, as a further possible embodiment, a filling element 1 b which differs from the filling element 1a in that in the Füllelementgehäuse 9 a third controlled gas channel 32 is formed, which is between the directly connected to the annular channel 7 section of Gas channel 19 and the between the gas path control valve 21.2 and the gas channel 19 lying portion of the gas channel 30 extends and in this section of the Gas channel 30 between the gas path control valve 21.2 and the throttle 31 opens, so that the third controllable gas channel 32 functionally parallel to the throttle 31 lies. In the gas passage 32, a third Gaswegsteuerventil 21.3 in series with a Throttle 33 is provided.

With the filling element 1 b are all the aforementioned filling method, d. H. 1-chamber pressurized filling, non-pressurized filling and 3-chamber pressure filling in the as described above, without replacing nozzles or Throttles and solely by appropriate control of the liquid valve 11 and the gas path control valves 21.1 and 21.2. The Gaswegsteuerventile 21.3 all Filling elements 1 b are in turn controllable via a common control line, d. H. in pneumatically actuated valves 21.3 via a common pneumatic control line operated by a single solenoid valve. at the 1-chamber pressure filling and the 3-chamber pressure filling are the valves 21.3 constantly closed and constantly open when depressurised.

Especially when unpressurized filling are when inserting and lifting the Bottle 25 the Gaswegsteuerventile 21.1 and 21.2 closed and the Gas path control valve 21.3 opened. The gas path control valves 21.1, 21.2 and 21.3 of Filling elements 1 b are then controlled so that during the fast filling all three Gaswegsteuerventile are open, while the brake filling only the two Gaswegsteuerventile 21.2 and 21.3 and at the filling and when lowering the Bottle in turn only the gas path control valve 21.3 is open.

The 3-chamber pressure filling with the filling elements 1 b is u.a. For Fruit spritzers with low CO2 content, for microbiologically sensitive and oxygen-sensitive beverages, in particular fruit juice drinks, for isotonic Beverages and wellness drinks with low CO2 content.

The pressureless filling with the filling elements 1 b is u.a. for fruit juices and Fruit juice drinks, ice tea, isotonic drinks and wellness drinks without CO2 content.

The individual filling methods and their preferred use can be summarized in tabular form as follows:

When using the filling elements 1 a depending on the required filling system or required filling variant (variant 1 or variant 2) only nozzles or Chokes 22, 31 and / or 33 used with different sizes, d. H. by Replacing the nozzles is also a changeover of the filling machine of the variant 1, in which only by controlling the Gaswegsteuerventile 21.1 and 21.2 a Switching from the 1-chamber pressure filling to the non-pressurized filling is possible on the variant 2 achievable, in which only by controlling the Gaswegsteuerventile 21.1 and 21.2 switching from the 1-chamber pressure filling to the 3-chamber pressure filling is possible.

FIG. 4 shows, as a further possible embodiment, a filling element 1 c as well partially the rotor 34 with a filling machine of rotating design with the on Rotor 34 provided boiler 35 (for example, ring boiler) with the partially with the vessel interior 36 filled with the liquid filling material and the tank formed thereby upper gas space 36.1 and lower liquid space 36.2, the gas space 4.1 or liquid space 4.2 of Figures 1 - 3 correspond. About the connection 6 corresponding compound 37 is each filling element 1 c or in each Filling element formed gas channel 20 directly with the gas space 36.1 in conjunction. The filling elements 1 c correspond in terms of their training, in particular also with regard to the design and control of gas routes, d. H. of the Gaswegsteuerventile 21.1 and 21.2 and with regard to the control of the Liquid valve 11 the filling elements 1 a of Figure 2.

The filling element 1 c differs from the filling element 1 a only by that instead of the volume-controlled filling a filling level controlled filling takes place and for this purpose each filling element 1 c of the filling machine a level determining probe 38 which when filled with its probe tip in the respective bottle 25 extends. Another difference is that instead of the bottle carrier 26 at each filling element by a Lifting device 39.1 controlled bottle carrier 39 is provided, in turn the respective bottle 25 at its projecting at the bottleneck Flange engages behind.

With the filling elements 1c are by controlling the liquid valve 11 and the both gas path control valves 21.1 and 21.2 the same filling possible, as they described above for the filling elements 1 a having filling machine were, with the only difference that the respective filling end by a signal the probe 38 is initiated.

As FIG. 5 shows, the filling machine of FIG. 4 can also be designed in such a way that that instead of the bottle carrier 39, a bottle carrier 40 is provided on the particular bottle 25 rests with its bottom, and for the lifting and lowering the respective bottle 25 by a not shown Lifting device is controlled.

In all the described embodiments, the control of the Liquid valve 11 and the respective Gaswegsteuerventile 21.1, 21.2 and 21.3 by a central control device 41 (computer) of the filling machine. The Gas path control valves 21.1, 21.2 and 21.3 are shown in the illustrated Embodiment pneumatically actuated valves, which then not shown, electrically controllable pneumatic valves and also not shown pneumatic control lines as required by the Control device 41 are controlled.

Allen described embodiments is further common that the respective boiler 3 or 35 is only partially filled with the liquid product, so that in this boiler the gas space 4.1 or 36.1 and the liquid space 4.2 or 36.2 result. By level control 42, the level N of the product level is in Boiler interior regulated.

In the embodiment shown in Figure 3 are in the connection 6 between the gas space 4.1 and the collection or annular channel 5 still electrically controllable Valves 43 and 44 and another, electrically controllable valve 45 on a additional connection of the gas space 4.1 provided, in particular for the control of the flow path of a cleaning fluid in a CIP cleaning the filling machine.

The invention has been described above by means of exemplary embodiments. It is understood that numerous changes are possible, without thereby the the The invention is left underlying thought.

LIST OF REFERENCE NUMBERS

1, 1a, 1b

filler

2

rotor

3

boiler

4

Boiler interior

4.1

headspace

4.2

liquid space

4.1.1

connection

4.1.2

connection

5

annular channel

6

management

7

annular channel

8th

management

9

Housing of the filling element

9.1

Housing bottom

10

liquid channel

11

liquid valve

12

valve body

13

Return gas pipe

14

Actuator for liquid valve

15

discharge opening

16

poetry

17

centering

18

chamber

19, 20

gas channel

21.1, 21.2, 21.3

Gas path control valve

22

throttle

23

management

24

sensor

25

bottle

26

bottle carrier

27

control roller

28

compression spring

29

piston

30

gas channel

31

throttle

32

gas channel

33

throttle

34

rotor

35

boiler

36

Boiler interior

36.1

headspace

36.2

liquid space

37

connection

38

probe

39

bottle carrier

39.1

lifting device

40

bottle carrier

41

Control device (computer)

42

level controller

43, 44, 45

Valve

N

level

FA

filling element

Claims (15)

Filling machine of the circumferential design for filling bottles (25) or similar containers with a liquid filling material, with a rotor (2, 34) rotatable about a vertical machine axis, with a boiler (3, 35) provided on the rotor (2, 34) whose boiler chamber (4, 36) forms a liquid space (4.2, 36.2) occupied by the liquid product and a gas space (4.1, 36.1) lying above it, with a plurality of filling elements (1, 1 a, 1) provided on the rotor (2, 34) b, 1 c), which in a Füllelementgehäuse (9) each have a liquid channel (10) with a liquid valve (11) between a liquid connection (23) with the liquid space (4.2, 36.2) and one at a bottom (9.1) of the housing ( 9) provided discharge opening (15), as well as with an open at the discharge opening and in the Füllelementgehäuse (9) formed in gas gas return gas pipe (13), characterized in that in each filling element (1, 1 a, 1 b, 1 c) ei n non-controlled gas path (19) with at least one throttle (22) is formed, the return gas pipe (13) with a first for all filling elements (1, 1 a, 1 b, 1 c) or for a group of filling elements (1, 1 a, 1 b, 1 c) common rotor-side return gas channel (7) connects, and that in each filling element (1, 1 a, 1 b, 1 c), a first controlled gas path with at least one first gas path control valve (21.1) is formed over which the return gas pipe (13) with the gas space (4.1, 36.1) of the boiler (3, 35) controlled connectable. Filling machine according to claim 1, characterized in that the return gas pipe (13) via the first controlled gas path with a common for all filling elements (1, 1a, 1b) or for a group of filling elements (1, 1a, 1b) rotor-side collecting channel (5) is connectable, which in turn is connected to the gas space (4.1) of the boiler (3). Filling machine according to claim 1 or 2, characterized in that each filling element is associated with a container carrier (26), for lifting the container to be filled (25) against the filling element (1, 1a, 1b) and for lowering the filled container (25 ), and in the Füllelementgehäuse (9) a chamber (18) is formed, which communicates with the return gas pipe (13) and in which a piston (29) of the container carrier (26) in the direction of the respective filling element (1, 1a , 1b) is arranged moving lifting element. Filling machine according to one of the preceding claims, characterized by a control device (41), with which the liquid valve (11) and the first gas path control valve (21.1) for a 1-chamber pressure filling are controllable such that for a biasing in sealing position with the respective The first controllable gas path through the first Gaswegsteuerventil (21.1) for biasing the container from the gas space (6.1, 36.1) of the boiler (3, 35) is opened, that for a subsequent fast filling with the first gas flow control valve (21.1) still open, the liquid valve is opened, and that the first gas flow control valve (1.1) and the liquid valve (11) are closed to complete the filling process. Filling machine according to claim 4, characterized in that the first gas path control valve (21.1) is controllable by the control device (41) such that it closes the first controlled gas path (20) for brake filling with the liquid valve (11) open. Filling machine according to one of the preceding claims, characterized in that formed in the housing of each filling element (1, 1 a, 1 b) a second controlled gas path with at least one second Gaswegsteuerventil (21.2) parallel to the throttle (22) of the non-controlled gas path (19) is. Filling machine according to claim 6, characterized in that in the second, controlled gas path in series with the second gas path control valve (21.2) at least one throttle (31) is provided. Filling machine according to claim 6 or 7, characterized in that by the control device (41) the second gas control valve (21.2) is controllable such that it is closed for a pressure filling and open for a non-pressurized filling. Filling machine according to one of claims 6 - 8, characterized in that the second Gaswegsteuerventile (21.2) of all filling elements (1a, 1c) or a group of filling elements (1 a, 1 c) of the filling machine via a common control line can be actuated. Filling machine according to one of claims 6 - 9, characterized in that by the control device (41), the liquid valve (11) and the first and second Gaswegsteuerventil (21.1, 21.2) are controlled for a non-pressurized filling such that for a quick filling of the second and third gas path and for a brake filling only the third gas path are open. Filling machine according to one of the preceding claims, characterized in that by the control device (41) the liquid valve (11) and the first and second Gaswegsteuerventil (21.1, 21.2) are controllable for a 3-chamber pressure filling such that for biasing the respective , in sealing position with the filling element (1 a, 1 b) located container (25) of the second gas path is opened for fast filling of the container (25) with the liquid valve open (11) the third gas path opened and the second gas path is closed and for a subsequent brake filling the second and third gas path are closed. Filling machine according to one of the preceding claims, characterized in that in the housing (9) of the filling elements (1 b) a controllable third gas path (30) with a third gas path control valve (21.3), preferably in series with a fourth throttle (31) is provided in parallel with the at least one throttle (31) of the second controlled gas path. Filling machine according to one of the preceding claims, characterized in that the third Gaswegsteuerventil (21.3) by the control device (41) is controllable such that the third gas path (32) for a pressure filling closed, preferably permanently closed and opened for a non-pressurized filling, preferably is constantly open. Filling machine according to one of the preceding claims, characterized in that for a volumetric filling in a connecting line (23) between the respective filling element (1, 1a, 1b) and the liquid space (4.2) of the boiler (3) designed as a flow meter sensor (24 ) is provided. Filling machine according to one of the preceding claims, characterized in that for a filling level controlled filling the filling elements (1 c) each have a filling height determining probe (38).

Images