Hydraulic Fitting Quick Venting Through Reservoir Bypass
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Solution Overview
Problem
Existing hydraulic fittings for systems like brake and clutch systems in vehicles lack an efficient mechanism for quickly venting air that enters the hydraulic system, which can lead to system failure and requires complex procedures for proper ventilation.
Innovation Solution
A hydraulic fitting with a temporary fluid connection between the pressure chamber and the fluid reservoir, facilitated by a closure element that can be actuated to release air quickly, utilizing an existing closure member for both the vent hole and the connecting passage, allowing for quick venting without replacing the need for complete system ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a traditional hydraulic fitting design is used with standard venting procedures, then the system maintains structural simplicity, but air removal becomes time-consuming and complex
Solution Approach 1:
The closure element is inserted through the fluid reservoir cover into the connecting passage, nesting the closure mechanism within the existing reservoir structure. This allows the closure element to control the additional fluid connection without adding external complexity to the hydraulic fitting
Solution Approach 2:
The additional fluid connection and closure element are pre-configured within the reservoir, allowing quick venting to be performed by simply actuating the closure element. The venting pathway is already prepared and connected, eliminating the need for complex external venting procedures
2Productivity
If an additional fluid connection is added for quick venting, then air can be removed quickly from the system, but the device structure becomes more complex
Solution Approach 1:
The closure element serves multiple functions: it closes the additional fluid connection during normal operation, allows quick venting when actuated, and can be integrated with the existing fluid reservoir cover structure. This multi-functionality reduces the need for separate dedicated venting components
Solution Approach 2:
The additional fluid connection is merged with the existing reservoir and piston structure, using the same closure element concept that already exists for the vent hole. The closure element is inserted through the cover, combining the sealing function with the quick venting capability in a single integrated component
3Ease of operation
If the closure element is actuated to release the connecting passage, then quick venting is enabled, but hydraulic fluid may leak during actuation
Solution Approach 1:
The closure element is designed to be dynamically actuated between closed and open positions. During actuation, the element transitions through intermediate positions where it may temporarily expose the connecting passage, creating a potential leakage risk that must be managed through proper sealing design and actuation procedure
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
Enables simple and effective removal of air from the hydraulic system, ensuring safe operation by temporarily storing air in the fluid reservoir, allowing for quick restoration of the system's functionality without replacing the need for complete venting and refilling.
Implementation Method 1
A closure element is provided for closing the passage. The closure element can be actuated, in particular, from the outside, for example, between at least one first position closing the connecting passage during operation and a second position releasing the connecting passage for quick venting.
Implementation Method 2
The closure element can be actuated between at least one first position closing the connecting passage during operation and a second position releasing the connecting passage for quick venting.
Implementation Method 3
A hydraulic fluid is located in the cylinder bore which is pressurised and fed to a connected hydraulic line by actuating the piston.
Implementation Method 4
A diaphragm for pressure equalisation in the fluid reservoir is provided.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a hydraulic fitting (10) for a hydraulic master system (100), comprising a housing (12) in which a fluid reservoir (16), a pressure chamber (20) in fluid connection with the fluid reservoir (16), and a vent hole (22, 22') connecting the pressure chamber (20) to the housing surroundings are formed, wherein the vent hole (22, 22') is closable during operation in a closed position (III) and is openable to produce a venting position (V), further comprising an additional fluid connection between the fluid reservoir (16) and the pressure chamber (20), which connection is interrupted during operation, but is temporarily openable to allow quick-action ventilation in a quick-action ventilating position (IV), while the vent hole (22) remains closed.