Method and device for filling a container with a filling product

Patent metadata

Field	Value
Publication number	US-11535503-B2
Application number	US-202017024931-A
Country	US
Kind code	B2
Filing date	Sep 18, 2020
Priority date	Sep 20, 2019
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

Method and filling device for filling a container with a filling product, in a beverage filling system, wherein the method comprises: determining one or more changeable influence variables which influence a target variable of the filling process, a filling level and/or a filling volume; receiving the influence variables by means of a control apparatus; calculating at least one output variable from the received influence variables by means of a calculation model of the control apparatus; and filling the container as a function of the at least one output variable.

First claim

The invention claimed is:

1. A method for filling a container with a filling product in a beverage filling system, the method comprising:
determining one or more changeable influence variables that influence a target variable of a filling process, the target variable being a filling level and/or a filling volume;
receiving the influence variables by way of a control apparatus;
calculating, by the control apparatus, at least one output variable based on the received influence variables using a calculation model, wherein the calculation model undertakes a pre-calculation as to which value is to be anticipated for the target variable as a function of the received influence variables and determines the at least one output variable from the value anticipated for the target variable; and
filling the container as a function of the at least one output variable.

2. The method of claim 1 , wherein the filling the container comprises:
evacuating the container to be filled to a negative pressure P low in a range of an absolute pressure of 0.5 to 0.05 bar; and
filling the filling product into the container at an overpressure in a range of an absolute pressure of 1 bar to 9 bar.

3. The method of claim 2 , wherein the filling of the container is terminated by taking into account a pressure curve in the container during the filling such that the filling of the container is terminated in response to a predetermined cut-off pressure (PAB) in the container being reached or a predetermined rise in pressure in the container being reached.

4. The method of claim 1 , wherein the changeable influence variables comprise one or more of: a temperature of the filling product to be bottled, a CO 2 content of the filling product to be bottled, a negative pressure P low of an evacuated container, and an overpressure at which the filling product is provided.

5. The method of claim 1 , wherein the at least one output variable comprises one or more of: an overpressure of the filling product at which the filling process is carried out, a negative pressure P low of an evacuated container, a cut-off pressure (PAB), and a dead space volume.

6. The method of claim 1 , wherein the one or more changeable influence variables are determined at defined time intervals and received by the control apparatus.

7. The method of claim 1 , wherein the calculating the at least one output variable is carried out: for each filling process, through regulation that is based on the filling process, at defined time intervals, or at filling intervals.

8. The method of claim 1 , wherein after terminating the filling process, the filling level or the filling volume in the filled container is determined and the calculation model is adjusted as a function thereof.

9. The method of claim 1 , wherein for determining an end of the filling process neither the filling level nor the filling volume are determined and/or utilized.

10. The method of claim 1 , wherein the calculating the at least one output variable is carried out such that the target variable adopts a particular value and remains substantially constant across a plurality of filling processes.

11. A filling device for filling a container with a filling product in a beverage filling system, the filling device comprising:
a filling member with a filling product line configured to introduce the filling product into the container;
a sensor configured to determine one or more changeable influence variables that influence a target variable of a filling process, the target variable being a filling level and/or a filling volume; and
a control apparatus configured to:
receive the determined influence variables,
calculate at least one output variable based on the received influence variables using a calculation model, wherein the calculation model undertakes a pre-calculation as to which value is to be anticipated for the target variable as a function of the received influence variables and determines the at least one output variable from the value anticipated for the target variable, and
activate the filling member such that the container is filled as a function of the at least one output variable.

12. The filling device of claim 11 , wherein the filling device is configured to:
evacuate the container to be filled to a negative pressure P low in a range of an absolute pressure of 0.5 to 0.05 bar,
provide the filling product at an overpressure in a range of an absolute pressure of 1 bar to 9 bar, and
introduce the filling product into the container.

13. The filling device of claim 12 , wherein the control apparatus is configured to terminate the filling process of the container based on a pressure curve in the container during the filling such that the filling of the container is terminated in response to a predetermined cut-off pressure (PAB) in the container being reached or a predetermined rise in pressure in the container being reached.

14. The filling device of claim 11 , wherein the sensor configured to determine the one or more changeable influence variables comprises one or more of:
a temperature sensor for measuring a temperature of the filling product to be bottled,
a CO 2 sensor for measuring CO 2 content of the filling product to be bottled,
a pressure gauge sensor for measuring a negative pressure P low of an evacuated container, and
a pressure gauge sensor for measuring an overpressure at which the filling product is provided.

15. The filling device of claim 11 , wherein the at least one output variable comprises one or more of: an overpressure of the filling product at which the filling process is carried out, a negative pressure P low of an evacuated container, a cut-off pressure (PAB), and a dead space volume.

16. The filling device of claim 11 , wherein the filling product line comprises a changeable dead space volume that is variable by an output variable of the control apparatus.

17. The filling device of claim 11 , wherein the control apparatus is configured to receive the one or more changeable influence variables at defined time intervals and to carry out the calculate at least one output variable for each filling process, through regulation that is based on the filling process, at defined time intervals, or at filling intervals.

18. The filling device of claim 11 , wherein the control apparatus is configured such that the calculate at least one output variable is performed using the calculation model such that the target variable adopts a particular value and remains substantially constant across a plurality of filling processes.

Assignees

• Krones Ag

Inventors

• Kursawe Andreas
• Habersetzer Florian

Classifications

• B67C3/22

  Details · CPC title

• B67C3/20

  with provision for metering the liquids to be introduced, e.g. when adding syrups (measuring volume, or volume flow, in general G01F) · CPC title

• B65B3/12

  mechanically, e.g. by pistons or pumps · CPC title

• B67C3/2634

  specially adapted for vacuum or suction filling · CPC title

• B67C3/06

  using counterpressure, i.e. filling while the container is under pressure · CPC title