Vertical Magnet Particle Recovery in Vehicle Brakes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing particle recovery devices for motor vehicle braking systems have low efficiency due to a magnet placed flat at the bottom of a cavity, which reduces the attraction force and allows particles to disperse in the air, as it is far from the friction material and only uses one side for collection.
Innovation Solution
The device features magnets with flat faces arranged perpendicular to the friction face, extending into the cavity, providing a high attraction force and doubling the magnetized surface area, with a cross shape and axial grooves to enhance particle collection, allowing particles to be attracted closer to the friction face and collected on both sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the magnet is placed flat at the bottom of the tank, then the structure is simple, but the attraction force is weak and particle collection efficiency is low
Solution Approach 1:
The magnet is repositioned from a flat horizontal orientation at the bottom to a vertical orientation extending upward into the cavity. This dimensional change allows the magnet to be closer to the friction material and utilize both front and rear faces for particle attraction, significantly increasing the effective magnetic force while maintaining structural simplicity
Solution Approach 2:
The magnet is positioned in advance to extend into the cavity before particles are generated, creating a pre-established magnetic field in the particle generation zone. This preliminary positioning ensures immediate particle attraction upon generation, maximizing collection efficiency from the outset
2Ease of manufacture
If the magnet is placed flat at the bottom of the tank, then the structure is simple, but particles disperse in the air and collection efficiency is low
Solution Approach 1:
By extending the magnet vertically into the cavity rather than placing it flat at the bottom, the magnetic field is positioned in the three-dimensional space where particles are generated and travel. This spatial reconfiguration captures particles before they can disperse horizontally, dramatically improving collection efficiency
Solution Approach 2:
The magnet acts as an intermediary force field that intercepts particles in their path through the cavity. By positioning this magnetic intermediary closer to the friction material and extending into the particle flow path, particles are captured before dispersing into the surrounding air
3Ease of manufacture
If only one face of the magnet is used for collection, then the structure is simple, but the magnetized surface area is limited
Solution Approach 1:
The magnet is oriented vertically so that both its front face (facing the friction material) and rear face are exposed to particle flow within the cavity. This vertical positioning in three-dimensional space allows dual-face utilization, effectively doubling the magnetized surface area without increasing the magnet's physical footprint or complicating the structure
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 configuration significantly increases the attraction force and collection efficiency of particles, reducing air dispersion and allowing for more effective recovery during vehicle maintenance.
Implementation Method 1
The particles of friction materials containing metallic elements, and the metallic particles of the discs, are attracted by the magnet arranged flat at the bottom of the cavity
Data Source
Figure 1~2
Figure 3A~6
AI summary
Device for recovering the particles emitted by a vehicle wheel braking system comprising brake linings (6) with friction materials (28) having a friction front face in contact with a rotating element (2), and cavities (44) each equipped with a particle-recovery magnet (40), the brake linings (6) comprising holes (50) opening onto these cavities (44) at the rear, each magnet (40) comprising plates having flat faces that receive the particles, that are arranged in the direction perpendicular to the friction face.