Sequential Multi-Diaphragm Foam Pump for Air-Liquid Ratio Control
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Solution Overview
Problem
Existing liquid dispenser systems fail to effectively create and dispense a consistent foam product by mixing liquid with air, as they lack a mechanism for sequential activation of diaphragms to control the air-liquid ratio accurately.
Innovation Solution
The development of sequentially activated multi-diaphragm foam pumps, which include a housing with separate liquid and air pump portions, a mixing chamber, and diaphragms that operate in sequential order to pump liquid and air, creating a consistent foam mixture with adjustable air-to-liquid ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If liquid dispenser systems mix liquid with air to create foam, then foam dispensing capability is improved, but the ability to control air-to-liquid ratio accurately deteriorates
Solution Approach 1:
The pump system is divided into separate liquid pump portion and air pump portion with independent diaphragms. The liquid pump diaphragm and first/second air pump diaphragms operate sequentially to independently control liquid and air delivery, enabling precise air-to-liquid ratio control while maintaining foam dispensing capability
Solution Approach 2:
The diaphragms are configured to operate in sequential periodic cycles: liquid pump diaphragm pumps liquid into mixing chamber, then first air pump diaphragm pumps air, followed by second air pump diaphragm. This periodic sequential action ensures consistent air-to-liquid ratio for reliable foam formation
2Stability of the object's composition
If multiple diaphragms are added to control air and liquid pumping separately, then foam consistency is improved, but device complexity increases
Solution Approach 1:
The liquid pump portion and air pump portion are integrated into a single housing with a shared mixing chamber. Multiple diaphragms operate within one unified structure rather than separate pumps, reducing overall system complexity while maintaining foam consistency through controlled sequential operation
Solution Approach 2:
The housing and mixing chamber serve multiple functions: containing both liquid and air pump portions, receiving output from multiple diaphragms, and facilitating mixing. This multi-functionality reduces the number of separate components needed, managing device complexity while ensuring consistent foam composition
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 enables the creation of a rich foam product with controlled air-to-liquid ratios, enhancing the dispensing efficiency and user experience by ensuring a consistent foam output.
Implementation Method 1
The liquid pump diaphragm, the first air pump diaphragm, and the second air pump diaphragm operate in sequential order. The liquid pump diaphragm pumps liquid into the mixing chamber
Implementation Method 2
The rotation of the wobble plate causes a sequential compression of the liquid pump diaphragm, the first air pump diaphragm, and the second air pump diaphragm
Implementation Method 3
the first air pump diaphragm pumps air into the mixing chamber to mix with the liquid to form a liquid air mixture, and the second air pump diaphragm pumps air into the mixing chamber to mix with the liquid air mixture to form a foamy mixture
Data Source
AI summary
A sequentially activated multi-diaphragm foam pump for a foam dispenser includes a housing with a liquid pump portion and air pump portion secured. The liquid pump portion has a liquid inlet and valve, a liquid pump diaphragm, a liquid outlet and outlet valve. The air pump portion has a first and second air inlet and air inlet valve, a first and second air pump diaphragm, and a first and second air outlet. The foam pump also includes a mixing chamber that is in fluid communication with the liquid outlet, the first second air outlets. The liquid pump diaphragm, the first and second air pump diaphragms, operate in sequential order and the foamy mixture is dispensed through an outlet that is in fluid communication with the mixing chamber.