Brake Pad Collection Groove for Suction-Based Particle Capture
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Solution Overview
Problem
Existing brake systems fail to optimally capture particles and dust emitted during friction braking due to air conditions and relative wind, leading to health hazards from environmental pollution.
Innovation Solution
A brake pad design with a collection groove integrated into the friction material, utilizing suction to capture particles before they escape, while maintaining braking effectiveness and cooling performance, using a flexible hose for pneumatic connection to a suction device that can be controlled electrically for optimized particle collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a collection groove is added to capture particles, then particle capture efficiency is improved, but the friction contact surface area is reduced
Solution Approach 1:
The collection groove is positioned specifically at the front edge of the lining where particles are most likely to escape, concentrating the particle capture function in the most critical location while preserving the majority of the friction surface area for braking effectiveness
Solution Approach 2:
The groove captures particles partially by intercepting them at the escape point rather than attempting to capture all particles across the entire surface, achieving effective particle reduction with minimal impact on friction area
2Object-generated harmful factors
If additional components are added near the pad for particle capture, then particle capture capability is improved, but cooling performance is impeded
Solution Approach 1:
The particle capture function is extracted and integrated directly into the lining structure itself through the collection groove, eliminating the need for separate additional components that would interfere with cooling airflow
Solution Approach 2:
The particle capture function is merged with the lining structure by incorporating the collection groove directly into the friction material, combining two functions (braking and particle capture) into a single integrated component without compromising cooling performance
3Device complexity
If suction is applied without blowing assistance, then system complexity is reduced, but particle capture rate decreases due to air conditions
Solution Approach 1:
The suction system operates autonomously using the vacuum source connected to the collection groove, capturing particles through the groove's strategic positioning at the escape point without requiring additional blowing mechanisms or complex active control systems
Solution Approach 2:
The collection groove acts as an intermediary structure that passively channels escaping particles into the suction pathway, enabling effective particle capture through simple suction alone by leveraging the groove's geometry and position rather than requiring complex active particle propulsion systems
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
Enhances particle capture efficiency across various air conditions without compromising braking performance or cooling, with a minimal surface area impact on the friction contact, effectively reducing environmental pollution from braking emissions.
Implementation Method 1
utilizing suction to capture particles before they escape
Data Source
Figure 1~4
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Figure 7~8
AI summary
Brake pad in an axle disc brake A, the pad comprising a shoe (1) and a lining made from friction material, the lining being defined by a friction face (26), a mounting face (20), an internal edge (23), an external edge (24), a front edge (21), a rear edge (22), the lining being provided with a collection groove (3), open on the friction face (26) and arranged close to the front edge (21), the shoe comprising a hole (17) in fluid communication with the collection groove, this hole being connected to a vacuum source via the communication means (4), the collection groove emerging at one of the edges chosen among the internal and external edges.