Reservoir Tank Float Guide Slit Design for Brake Fluid Level Detection
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Solution Overview
Problem
The existing reservoir tank designs for vehicle brake systems face issues with fluid level detection accuracy due to the risk of the float blocking the slit, leading to temporary fluctuations in fluid level detection functionality when tilted.
Innovation Solution
A reservoir tank design with a float guide featuring a slit and an operating fluid passage that ensures continuous communication between the float chamber and storage chamber, even when the float tilts, preventing blockages and maintaining fluid level detection accuracy. The slit is strategically positioned on the upper side of the float guide, and the operating fluid passage is formed in a linear shape extending downward, ensuring uninterrupted fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the slit is formed in the back end part of the float guide, then the float chamber and storage chamber are in communication, but the float may block the slit when tilted, causing fluid level detection fluctuations
Solution Approach 1:
The invention transitions from a single slit configuration to a three-dimensional communication path by adding an operating fluid passage that extends from the slit into the float chamber. This dimensional extension ensures that even when the float blocks the slit opening, fluid can still communicate through the passage, eliminating the blockage problem while maintaining the detection function.
2Reliability
If the slit is positioned to allow fluid flow, then communication between chambers is established, but fluid level detection accuracy deteriorates when float tilts toward the slit
Solution Approach 1:
The operating fluid passage acts as an intermediary element between the slit and the float chamber interior. It provides an alternative communication path that is not directly blocked by the float, thereby maintaining both fluid communication and detection accuracy simultaneously.
3Device complexity
If only a slit is provided for communication, then the structure is simple, but the passage of operating fluid is not secured when float blocks the slit
Solution Approach 1:
The communication path is segmented into two functional parts: the slit that provides primary communication and the operating fluid passage that provides backup communication. This segmentation ensures that if one path is blocked, the other remains functional, improving reliability without significantly increasing complexity.
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 design secures the passage of operating fluid and prevents fluctuations in the fluid level detection function, maintaining accurate fluid level monitoring even when the reservoir tank is tilted, thus enhancing the reliability of the brake system.
Implementation Method 1
a float moving up and down in the float chamber on the inner side of the float guide in accordance with fluctuations of a fluid level
Data Source
AI summary
A reservoir tank includes a reservoir body defining a storage chamber for an operating fluid; and a float guide in the storage chamber. The float guide forms a float chamber on the inner side. The reservoir tank further includes a fluid level detection device that has a float moving up and down in the float chamber in accordance with fluctuations of a fluid level, and has a detector detecting when the float is below predetermined position. The reservoir tank is provided with a slit in the float guide. The slit is in communication with the storage chamber and the float chamber. An operating fluid passage is provided on an inner face of the float guide which is continuous with the slit, which is in communication with the slit and the float chamber.