Brake Fluid Reservoir Filter Venting for Accurate Siphoning
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Solution Overview
Problem
Prior brake fluid reservoirs often become overfilled due to a fluidic barrier created by surface tension and air pressure, which prevents efficient siphoning and pressure balancing during the filling process, leading to a brake fluid level above the maximum filling level.
Innovation Solution
A filter with a cylindrical side wall and flange apertures covered by filter meshes, allowing for efficient flow and venting, ensuring brake fluid is siphoned down to the maximum level by using end apertures for siphoning and flange apertures for venting and pressure balancing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If side wall apertures are covered with filter meshes to prevent contaminants, then filtration is improved, but surface tension creates a fluidic barrier that prevents efficient siphoning and pressure balancing
Solution Approach 1:
The filter is divided into two distinct functional zones: flange apertures for venting and pressure balancing, and end apertures for siphoning. This segmentation allows each zone to optimize its specific function without the interference that occurs when a single filtered structure must perform multiple functions.
Solution Approach 2:
The flange apertures act as intermediary venting paths that allow air to pass through the filter structure during siphoning operations. This intermediary function enables pressure equalization between the reservoir interior and exterior, eliminating the fluidic barrier effect that would otherwise prevent efficient siphoning through the end apertures.
2Reliability
If filter meshes are used to block contaminants, then contamination prevention is improved, but pressure imbalance occurs between fluid chamber and filter interior
Solution Approach 1:
The filter structure segments contaminant filtration from pressure balancing functions. The flange apertures with filter meshes provide pressure equalization while maintaining contaminant blockage, separate from the end apertures that handle siphoning. This allows precise control of brake fluid levels without pressure imbalances.
3Quantity of substance
If siphoning is performed through side wall apertures, then brake fluid removal is achieved, but the process takes excessive time and leaves reservoir overfilled
Solution Approach 1:
The flange apertures serve as intermediary venting channels that allow air to enter the filter structure during siphoning. This eliminates the fluidic barrier effect of surface tension on the end apertures, enabling rapid and complete siphoning of brake fluid down to the maximum level without excessive time loss.
Solution Approach 2:
The invention changes the operational parameters of the siphoning process by introducing a dedicated venting path through the flange apertures. This parameter change (adding air flow path) transforms the siphoning process from slow and incomplete to rapid and precise, achieving complete fluid removal within the allotted time.
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 filter ensures the brake fluid level in the reservoir is accurately maintained at the maximum filling level, preventing overfilling and ensuring proper pressure balancing during the filling and siphoning process.
Implementation Method 1
A first filter mesh covers the flange aperture and prevents contaminants from passing through the flange aperture. A second filter mesh covers the end aperture and prevents contaminants from passing through the end aperture.
Implementation Method 2
the surface tension of the brake fluid F against the side wall filter meshes 146 may create a fluidic barrier that prevents the brake fluid from flowing through the side wall apertures 144 into the filter 100 for being siphoned out
Data Source
AI summary
A filter for a brake fluid reservoir includes a side wall. A flange extends from the side wall at a first end of the side wall. A flange aperture extends through the flange. An end wall is at a second end of the side wall. An end aperture extends through the end wall. A first filter mesh covers the flange aperture for preventing contaminants from passing through the flange aperture. A second filter mesh covers the end aperture for preventing contaminants from passing through the end aperture.