Liquid Storage Section With Moisture Permeable Membrane
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing liquid ejection devices face issues with pressure differences causing moisturizing liquid or ejection liquid to seep through the moisture permeable membrane, leading to potential mixing and inefficiencies in liquid storage and ejection.
Innovation Solution
A liquid storage section with a moisture permeable membrane that partitions the storage body into separate chambers for ejection liquid and moisturizing liquid, ensuring the liquid surfaces are positioned below the membrane's upper end, and a pressure change mechanism to manage pressure changes without creating pressure differences that could lead to liquid seepage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pressure is applied to the storage space to enable liquid flow, then liquid ejection efficiency is improved, but pressure difference causes liquid seepage through the moisture permeable membrane
Solution Approach 1:
The patent introduces a vertical height dimension by positioning the membrane's upper end above the liquid surfaces. This creates a pressure buffer zone that absorbs pressure fluctuations during liquid flow, preventing pressure differences that would cause seepage while maintaining effective liquid ejection through the chambers.
Solution Approach 2:
The moisture permeable membrane acts as an intermediary structure that not only separates the two liquid chambers but also provides a height buffer zone. This intermediary design allows the membrane to mediate between the need for pressure-driven flow and the need to prevent seepage by accommodating pressure changes without creating harmful pressure differences.
2Productivity
If the moisture permeable membrane is positioned to allow liquid surfaces contact, then moisture supply efficiency is improved, but liquid seepage occurs through the membrane
Solution Approach 1:
The patent utilizes the vertical height dimension by extending the membrane's upper end above the liquid surfaces. This creates a three-dimensional separation space that maintains effective moisture permeability at the liquid-membrane interface while preventing horizontal seepage by establishing a height-based containment barrier.
Solution Approach 2:
The membrane structure exhibits local quality differentiation: at the liquid contact region, it allows moisture permeability for efficient supply, while at the upper extended portion above the liquid level, it provides structural containment to prevent seepage. This local differentiation of function resolves the contradiction between efficiency and harm prevention.
3Volume of stationary object
If the liquid surfaces are positioned high to maximize chamber utilization, then storage capacity is improved, but pressure difference increases causing seepage risk
Solution Approach 1:
The patent resolves the storage capacity vs. pressure control contradiction by utilizing the vertical height dimension. The membrane extends upward above the liquid surfaces, creating a height-based pressure buffer zone. This allows the liquid chambers to be fully utilized for storage while the extended membrane portion absorbs pressure fluctuations, preventing seepage even when liquid surfaces are positioned at maximum height.
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
Effectively prevents liquid seepage through the membrane, maintaining the separation of ejection liquid and moisturizing liquid, and ensures consistent moisture supply to the ejection liquid, enhancing the reliability and efficiency of the liquid ejection process.
Implementation Method 1
a moisture permeable membrane attached to the storage body, wherein the moisture permeable membrane partitions an inside of the storage body into an ejection liquid chamber and a moisturizing liquid chamber
Data Source
AI summary
A liquid storage section includes a storage body that stores ejection liquid and moisturizing liquid and a moisture permeable membrane attached to the storage body, wherein the moisture permeable membrane partitions an inside of the storage body into an ejection liquid chamber and a moisturizing liquid chamber, the ejection liquid chamber is a space in which ejection liquid is stored, the moisturizing liquid chamber is a space in which moisturizing liquid is stored, and the storage body stores ejection liquid and moisturizing liquid such that a liquid surface of ejection liquid stored in the ejection liquid chamber and a liquid surface of moisturizing liquid stored in the moisturizing liquid chamber are positioned below an upper end of the moisture permeable membrane.