Foamer Dispenser With Dual Piston Pump And Mesh Filter
Solution Overview
Problem
Conventional foamer dispensers often produce foam with varying quality, including both small and large air bubbles, which affects the appearance and texture of the foam.
Innovation Solution
A foamer dispenser design featuring a pump cover, pump cylinder with large and small diameters, pistons for liquid and air, and a mesh filter with specific flow path area ratios to ensure uniform foam quality, where the connecting flow path areas between liquid, air, and mixture flow paths are optimized to achieve consistent foam texture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional foamer dispenser uses a single pump chamber and simple mesh filter, then the device complexity is low, but the foam quality varies with large and small air bubbles present
Solution Approach 1:
The pump chamber is divided into two separate chambers: a first pump chamber for pumping liquid and a second pump chamber for pumping air. This segmentation allows independent control of liquid and air flow paths, enabling precise regulation of mixing ratios and improving foam quality uniformity while maintaining reasonable device complexity.
Solution Approach 2:
Different regions of the pump system are designed with different functions: the first pump chamber with liquid pumping components, the second pump chamber with air pumping components, and a mixing chamber where the two streams converge. This local differentiation of functions enables optimized performance for each specific requirement.
2Manufacturing precision
If the connecting flow path area ratio S1/S2 is not optimized, then the device complexity is low, but the foam texture becomes non-uniform with varying bubble sizes
Solution Approach 1:
The invention specifies an optimized range for the flow path area ratio S1/S2 (where S1 is the connecting flow path area between the first pump chamber and mixing chamber, and S2 is the connecting flow path area between the second pump chamber and mixing chamber). By controlling this parameter within a specific range, the liquid-to-air mixing ratio is optimized, producing uniform foam texture with consistent bubble sizes.
3Manufacturing precision
If the mesh filter flow path area S4 is not properly proportioned to the upstream flow path area S3, then the device complexity is low, but the foam quality suffers from poor bubble distribution
Solution Approach 1:
The invention establishes an optimized ratio relationship between the mesh filter flow path area S4 and the upstream mixture flow path area S3. By controlling this area ratio parameter, the invention ensures proper flow distribution across the mesh filter, which directly improves bubble distribution uniformity and overall foam quality.
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 optimized design results in fine and uniform foam quality, enhancing the appearance and texture of the foam when dispensed.
Implementation Method 1
a small-diameter piston that is received in the small-diameter portion of the pump cylinder and that is configured to suck and pump a liquid in the container body
Implementation Method 2
a large-diameter piston that is received in the large-diameter portion of the pump cylinder and that is configured to suck and pump ambient air
Implementation Method 3
a mesh filter that is disposed in the mixture flow path to allow the mixture to pass
Data Source
AI summary
A foamer dispenser including a mesh filter that is disposed in a mixture flow path of a jet ring to allow a mixture to pass is provided. A connecting flow path area between a liquid flow path and the mixture flow path and a connecting flow path area between an ambient air flow path and the mixture flow path have the relation 2.8≤S1/S2≤3.8, and/or, a smallest flow path area of the mixture flow path is located on an immediately upstream side of the mesh filter, and the smallest flow path area and a flow path area of the mesh filter have the relation 4≤S4/S3≤10.3.