Disc Brake Dust Guiding Housing for Turbulent Particle Capture
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Solution Overview
Problem
Existing disc brake devices for transportation vehicles are inefficient in transferring abraded brake material or brake dust into the brake dust collecting device, as they rely on laminar air streams that fail to effectively pick up and guide the dust to the collection chamber.
Innovation Solution
The introduction of a brake dust guiding housing with a U-profile cross section and projections that generate a turbulent air stream within the flow channel, enhancing the air stream's capability to collect and filter brake dust by increasing turbulence and optimizing airflow for efficient deposition in the brake dust collecting housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a laminar air stream is used to transfer brake dust, then the airflow is smooth and stable, but the air stream fails to effectively pick up and guide brake dust to the collection chamber
Solution Approach 1:
The patent changes the flow regime parameter from laminar to turbulent by introducing a turbulence generator. This parameter change transforms the air stream characteristics, enabling it to effectively pick up and transport brake dust particles to the collection chamber, thereby resolving the contradiction between smooth stable flow and effective dust transfer.
Solution Approach 2:
The turbulence generator acts as an intermediary device that modifies the air stream properties. It introduces controlled turbulence into the airflow, which enhances the air's ability to entrain and transport brake dust particles, serving as a mediator between the air stream and the dust particles.
2Volume of stationary object
If the brake dust collecting housing is arranged spaced apart from the brake carrier, then there is space for airflow and dust collection, but the transfer of brake dust becomes inefficient
Solution Approach 1:
The brake dust guiding housing serves as an intermediary structure that bridges the gap between the brake carrier and the brake dust collecting housing. It creates a defined flow channel that guides the turbulent air stream and trapped brake dust particles from the brake carrier region to the collection chamber, making the spaced arrangement effective for dust transfer.
Solution Approach 2:
The patent introduces a spatial dimension by creating a three-dimensional flow channel structure with the guiding housing. This structured spatial arrangement ensures that the turbulent airflow and dust particles are channeled along a specific path, effectively utilizing the space between the brake carrier and collecting housing.
3Productivity
If a turbulent air stream is generated, then the air stream effectively picks up and guides brake dust, but the complexity of the device increases
Solution Approach 1:
The device is segmented into distinct functional modules: the brake dust guiding housing with its U-profile cross section and the turbulence generator as a separate component. This segmentation allows the turbulence generator to be integrated into the existing brake system without requiring complete redesign, thus limiting the increase in overall device complexity.
Solution Approach 2:
The brake dust guiding housing serves multiple functions: it structures the airflow path, guides dust particles, and houses the turbulence generator. This multi-functionality reduces the need for additional separate components, thereby minimizing the increase in device complexity while achieving effective turbulent flow for dust collection.
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 approach significantly improves the reliable and efficient transfer of brake dust into the collection system, enhancing the separation efficiency and reducing the adherence of dust on the brake dust guiding housing.
Implementation Method 1
a turbulent air stream is generated by the rotating brake disc and which carries brake dust
Implementation Method 2
an air stream, which is generated by the rotating brake disc and which carries brake dust
Implementation Method 3
to a filter medium of the brake dust collecting housing
Implementation Method 4
the flow speed to abruptly decrease in the second housing part, such that the brake dust can be deposited therein
Data Source
AI summary
A disc brake device for a transportation vehicle having a brake disc, brake pads placed in frictional contact with the brake disc, a brake carrier, and a brake dust collecting device having a brake dust collecting housing situated behind the brake carrier as viewed in a main direction of rotation of the brake disc, wherein the brake dust collecting housing is connected to the brake carrier. Within the brake dust collecting housing, there is arranged a brake dust guiding housing having a U-profile cross section covering the brake disc radially at the outside, wherein the brake dust guiding housing forms a flow channel with an inlet and an outlet for an air stream generated by the rotating brake disc and carrying brake dust to a filter medium of the brake dust collecting housing, and wherein the brake dust guiding housing generates a turbulent air stream in the flow channel.