Modulated Pressure Control for Beverage Fill Flow
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Solution Overview
Problem
Large-scale bottling machines for pressurized beverages are costly and inefficient, while small-scale machines are slow due to the need for precise pressure control to prevent foaming and gas loss, and existing solutions do not effectively modulate pressure to accommodate widgets in cans.
Innovation Solution
A beverage filling apparatus using modulated variable pressure pinch valves to control CO2 exhaust from cans, allowing gradual pressure reduction and improved flow control to prevent foaming, combined with a seamer for increased production efficiency and portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If large-scale bottling machines are used, then production speed is high, but equipment cost is high and space requirement is large
Solution Approach 1:
The system divides the filling process into discrete operational phases (pressurization, purging, filling, depressurization) with dedicated valve control for each phase. This segmentation allows a compact machine to achieve high production speed through optimized sequential operations rather than requiring a large-scale all-at-once system.
Solution Approach 2:
The patent employs dynamic valve control that adjusts pressure and flow rates in real-time during the filling process. The system transitions from static on/off valve control to dynamic modulation, enabling precise control of beverage flow and gas exchange, thereby achieving high productivity in a compact configuration.
2Device complexity
If on-off valves are used to control beverage flow, then flow control is simple, but pressure equalization is disrupted causing foaming
Solution Approach 1:
The system replaces static on/off valve control with dynamic valve modulation that maintains pressure equalization during the filling process. The valves are controlled to open and close at specific rates, creating a dynamic pressure balance that prevents CO2 bubble formation and foaming while maintaining simple valve hardware.
Solution Approach 2:
The filling process employs periodic valve actuation where valves are opened and closed in controlled cycles during the filling phase. This periodic action maintains pressure equilibrium between the beverage source and the can, preventing sudden pressure changes that would cause foaming, while keeping the valve control mechanism relatively simple.
3Loss of time
If pressure is reduced quickly to ambient, then filling time is reduced, but CO2 bursts into bubbles causing foam-out
Solution Approach 1:
The system employs dynamic pressure reduction where the depressurization valve is controlled to open at a specific rate rather than instantly. This dynamic control allows pressure to equalize gradually with ambient pressure, preventing sudden CO2 bubble expansion and foam-out while minimizing the time loss through optimized rather than maximally rapid depressurization.
Solution Approach 2:
The system changes the pressure reduction parameter from instantaneous to controlled rate-based. By modulating the valve opening rate and controlling the pressure differential change over time, the system achieves a balance between filling speed and preventing harmful gas bubble formation, optimizing the time-loss tradeoff.
4Device complexity
If small-scale bottling machines are used, then equipment cost is low, but production speed is slow due to multiple indexing stations
Solution Approach 1:
The system uses dynamic valve control to optimize the filling cycle time, allowing faster filling operations at each indexing station. By controlling beverage flow rates and pressure changes dynamically, the machine can complete filling operations more quickly at each station, thereby increasing overall production speed without requiring multiple stations.
Solution Approach 2:
The system maintains continuous useful action during the filling process by overlapping operations - while one can is being filled, the system prepares the next can for filling. The continuous modulation of valves ensures uninterrupted beverage flow and gas management, maximizing productivity at each indexing station without requiring multiple stations in sequence.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus reduces the risk of beverage foaming, increases production speed beyond craft brewery levels, and allows for portable operation without pre-measurement, maintaining widget pressure and preventing gas loss during filling.
Implementation Method 1
the can is first pressurized repeatedly with CO2 or N2 to purge out oxygen
Implementation Method 2
modulated variable pressure pinch valves to control exhaust of CO2 from the can after purge, thus controlling the inflow of beverage into the can
Implementation Method 3
The pressure instantly decreases dramatically upon opening and the widget instantly discharges through the small ports, providing the gas into the beverage in the can
Data Source
AI summary
A method and apparatus of filing beverage combines pressurized beverage delivery (rather than gravity feed) with variable pressure control of the beverage flow into the can. By modulating beverage flow and especially beverage pressure, it is possible to fill a can's widget (gas reservoir) with gas with a shorter set of fill steps. In addition, the speed of beverage filling can be dramatically increased compared to small scale systems normally used. Unlike known large scale pressure systems, the beverage bowl may be located beneath the rest of the apparatus and modulated pressure may be used, making for a smaller and more portable unit.