Hydraulic Brake Distributor With Telescopic Pistons for Combined Braking
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Solution Overview
Problem
Existing combined braking systems for two-wheeled vehicles often fail to ensure simultaneous braking on both the front and rear wheels regardless of which brake control is actuated, leading to inconsistent braking performance.
Innovation Solution
A hydraulic brake distributor with two axially movable piston valve elements, each with sealing gaskets and elastic contrast elements, allows for simultaneous or independent control of brake fluid flow to the front and rear wheels, ensuring consistent combined braking by maintaining pressure equilibrium and preventing fluid mixing between the two circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single piston valve element is used in existing combined braking systems, then the device complexity is reduced, but the reliability of simultaneous braking on both wheels cannot be ensured regardless of which brake control is actuated
Solution Approach 1:
The single piston valve element is segmented into two separate piston valve elements (first and second), each independently controlling fluid flow to different outlets. This segmentation ensures that actuation of either brake control reliably produces simultaneous braking on both wheels, as each piston can respond independently to its respective control input.
Solution Approach 2:
A communication channel is introduced as an intermediary between the first and second hydraulic chambers, allowing fluid pressure to be transmitted from one chamber to the other. This intermediary mechanism ensures that when one brake control is actuated, the resulting pressure change is communicated to the other chamber, guaranteeing simultaneous braking response regardless of which control is activated.
2Reliability
If brake fluid can flow between different circuits, then the ease of operation is improved, but the purity of fluid separation between front and rear brake circuits is compromised
Solution Approach 1:
Different regions of the piston valve elements are assigned different sealing functions: sealing gaskets are positioned at specific locations to seal against the cylindrical cavity wall, while elastic contrast elements are positioned at other locations to seal against the piston valve elements themselves. This localized sealing approach ensures complete fluid circuit separation while maintaining operational reliability.
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 system ensures simultaneous braking on both wheels regardless of the actuated brake control, providing consistent braking performance and allowing for adjustable force distribution between the wheels through varying elastic element strengths and chamber diameters, while optionally enabling a locking mechanism for non-combined braking configurations.
Implementation Method 1
each piston valve element being provided with at least one elastic contrast element arranged in a hydraulic chamber delimited by the piston valve element
Implementation Method 2
The valve elements are provided with sealing gaskets that act against the internal wall of the cylindrical cavity
Implementation Method 3
a single piston valve element provided with sealing gaskets that act against the internal wall of the cylindrical cavity is axially movable within the cylindrical cavity. The actuation of a first of the two brake controls causes the valve element to move, with a consequent flow of brake fluid to both the front and rear brakes simultaneously
Data Source
AI summary
A hydraulic brake distributor for a two-wheeled vehicle has an outer body that forms an internal cavity accommodating two floating piston valve elements. The two floating piston valve elements are axially movable and mutually coupled in a telescopic manner. One of the two floating piston valve elements has an internal through-channel.