Carbonated Beverage Nozzle With Curved Guide Surface for Foam Suppression
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Solution Overview
Problem
Existing beverage servers struggle to pour carbonated beverages while suppressing foaming and maintaining a high gas volume (GV) after pouring.
Innovation Solution
A beverage server with a pouring nozzle featuring a cylindrical member and a guide surface that gradually changes tilt from an upper end to a lower end, guiding the beverage to minimize foaming and ensure a smooth flow, optionally with grooves or an overhang surface to control the flow further.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional pouring nozzle is used, then the carbonated beverage can be poured, but foaming occurs during pouring and GV decreases
Solution Approach 1:
The guide surface is designed with a specific curved profile where the tilt angle changes gradually from the upper end to the lower end. This curvature allows the beverage to flow smoothly along the guide surface without sudden direction changes, reducing turbulence and foaming while maintaining high GV values
Solution Approach 2:
The guide surface has different tilt characteristics at different positions - the upper portion has a steeper tilt to initiate flow, while the lower portion has a gentler tilt to reduce impact and foaming. This localized variation in surface geometry optimizes both flow initiation and foam suppression
2Ease of operation
If the pouring nozzle directs beverage straight down, then pouring is simple, but foaming increases and GV is compromised
Solution Approach 1:
The guide surface acts as an intermediary between the cylindrical member and the beverage container. It mediates the beverage flow by providing a controlled path that gradually changes the flow direction, reducing impact and foaming while maintaining ease of operation
Solution Approach 2:
The curved guide surface gradually redirects the beverage flow from a vertical path to a more horizontal path along the container wall, reducing impact and foaming without complicating the pouring operation
3Speed
If the guide surface has a steep tilt, then beverage flows quickly, but foaming increases
Solution Approach 1:
The guide surface uses a curved profile that provides adequate flow speed through gravity while gradually reducing the tilt angle toward the lower end, preventing sudden impact and foaming generation
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 solution effectively suppresses foaming and maintains a high GV, with the GV exceeding 4.0 and often exceeding 5.0 or 5.4 in some configurations, ensuring efficient pouring of carbonated beverages.
Implementation Method 1
the carbonated beverage runs down inside the cylindrical member while being guided by the guide surface
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A beverage server configured to pour a carbonated beverage to a beverage container, includes a supply source configured to supply the carbonated beverage; and a pouring nozzle configured to pour the carbonated beverage supplied from the supply source to the beverage container, wherein the pouring nozzle includes a cylindrical member, and a guide including a guide surface whose one portion is arranged inside the cylindrical member and whose another portion projects to a lower side of the cylindrical member, the carbonated beverage runs down inside the cylindrical member while being guided by the guide surface, and the guide surface includes an upper end and a lower end and is formed such that a tilt becomes moderate from a position between the upper end and the lower end to the lower end.