Self-ventilated Brake Disc Radial Grooves Bridge Segmentation
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Solution Overview
Problem
Existing self-ventilated brake disks with zig-zag grooves in the circular crown enhance brake pad wear due to vertical pressure, leading to increased material costs and reduced heat dissipation efficiency.
Innovation Solution
A self-ventilated brake disk design featuring radial grooves with bridge-like portions on the same plane as the circular crown, reducing brake pad wear and allowing for efficient heat dissipation through a simpler manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If zig-zag grooves are used in the circular crown, then heat dissipation is improved, but brake pad wear increases due to vertical pressure acting as a shear force
Solution Approach 1:
The grooves are segmented by bridge-like portions that divide the continuous groove into separate sections. This segmentation prevents the brake pad from being sheared by vertical pressure while maintaining the heat dissipation function of the grooves. The bridges create discrete cooling channels that remain open under braking pressure.
Solution Approach 2:
The bridge-like portions extend in the vertical dimension, rising from the groove floor to meet the circular crown surface. This vertical extension creates a three-dimensional structure that prevents the brake pad from contacting the groove bottom, eliminating the shear effect while preserving radial heat dissipation paths.
2Quantity of substance
If multiple grooves are added to reduce material usage, then manufacturing cost decreases, but brake pad wear increases due to enhanced shear effect
Solution Approach 1:
Each groove is segmented by bridge-like portions into multiple discrete sections. This allows the brake pad to glide over the bridges without shearing, while the segmented groove structure still achieves material reduction through efficient heat dissipation pathways.
Solution Approach 2:
The bridge-like portions are strategically positioned within the grooves to provide local structural support where needed. This localized reinforcement prevents shear wear in critical areas while maintaining overall material efficiency through the groove configuration.
3Loss of substance
If bridge-like portions are added to grooves, then brake pad wear is reduced, but manufacturing complexity increases
Solution Approach 1:
The bridge-like portions are integrated directly into the groove structure as a unified feature rather than separate components. This merging of the bridge and groove into a single structural element simplifies manufacturing while achieving the wear reduction benefit.
Solution Approach 2:
The bridge-like portions serve multiple functions: they structurally support the groove, prevent brake pad shear wear, and maintain heat dissipation pathways. This multi-functionality reduces the need for additional components, simplifying the overall device 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
The design minimizes brake pad wear, lowers manufacturing costs, and maintains effective heat dissipation during brake pad contact, offering improved performance and cost-effectiveness.
Implementation Method 1
good properties as to the dissipation of heat
Implementation Method 2
dissipation of heat
Data Source
AI summary
Self-ventilated brake disk, particularly for vehicles, comprising a unique body formed by a frictional circular crown and a hub transmitting the couple to the whole disk, wherein the circular crown includes multiple grooves arranged radially in respect to the center of the disk, including at least a portion with a predetermined width arranged between each of the grooves, said portions been arranged on the same plane that the rest of the circular crown. In this way, the wear of the brake pad is reduced, having a simple construction and providing good heat dissipation during the contact of the brake pad and the friction surface of the disk.