Dispensing Module Piston Coupling for Deformation Resistance
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Solution Overview
Problem
Existing dispensing modules for two liquid products face challenges in maintaining precise mixing ratios and are prone to operating faults due to container deformation, which restricts the freedom of container shape selection and can lead to product inconsistency.
Innovation Solution
The dispensing module couples two pistons mechanically, forming a single piston unit with a circular ring-shaped first chamber and a concentric second chamber, allowing for simultaneous displacement and irreversible connection after filling, ensuring the container shape can be freely selected and maintaining product homogeneity even if the product chamber pressure exceeds gas pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two pistons are arranged to slide along the container wall, then the container can be filled with two products, but the container shape must be absolutely cylindrical and is prone to deformation causing operating faults
Solution Approach 1:
The system divides the single piston function into two separate pistons (first piston and second piston) that operate independently in separate chambers, allowing the container to accommodate non-cylindrical shapes while maintaining reliable product dispensing without the deformation issues associated with single-piston designs
Solution Approach 2:
A coupling device acts as an intermediary mechanism between the two pistons, synchronizing their movement to ensure precise mixing ratios. This mediator allows the pistons to move in coordination without requiring the container to maintain a rigid cylindrical shape, thus resolving the conflict between shape flexibility and operational reliability
2Quantity of substance
If two bags are used for two products, then the products can be stored separately, but it is difficult to convey the products in an even defined mixing ratio
Solution Approach 1:
The system replaces manual or independent bag-based product conveyance with a mechanically coupled piston system. The coupling device ensures that the first piston and second piston move in synchronized fashion, automatically maintaining precise mixing ratios without requiring manual intervention or complex control mechanisms
Solution Approach 2:
The coupling device merges the movement control of two separate pistons into a single coordinated action. By mechanically linking the pistons, the system ensures that products are conveyed in precise mixing ratios while simplifying the operation, as moving one piston automatically controls the other
3Device complexity
If a single piston slides along the container wall, then the structure is simple, but the container must be absolutely cylindrical and deformation causes product leakage
Solution Approach 1:
The system segments the piston function into two separate pistons operating in separate chambers, eliminating the need for a single piston to slide along the entire container wall. This segmentation removes the requirement for an absolutely cylindrical container and prevents deformation-related leakage issues
Solution Approach 2:
The coupling device serves as an intermediary that coordinates piston movement without requiring the pistons to contact the container wall. This intermediary mechanism protects against deformation-induced leakage while maintaining synchronized product dispensing
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
This solution prevents operating faults from container deformation, allows for flexible container design, and ensures precise mixing ratios and product consistency by ensuring the pistons move synchronously, maintaining product homogeneity regardless of pressure differences.
Implementation Method 1
coupling means are provided for coupling the two pistons during product dispensing
Implementation Method 2
when the one piston is displaced, the other piston is also displaced in a corresponding manner
Data Source
AI summary
The invention relates to a dispensing module for two liquid products, comprising: a first chamber (20) having a first wall, said first chamber having a first opening; a first piston (61) which can be displaced while resting on the wall of the first chamber; a second piston (64) which can be displaced while resting on a wall of the second chamber, and coupling means (62) for coupling both pistons while the product is being dispensed are provided. According to the invention, in order to prevent functional dysfunctions in the event of a distortion of the shape of container and to freely select the shape of the container, said dispensing module comprises a second chamber, the wall of which can be displaced while resting on the second piston, said second chamber comprising a second opening. This is achieved by virtue of the fact that the distortion of the container no longer leads to functional dysfunctions of the dispensing module. Also, the outer shape of the container can be freely selected.