GB2586609A - Wear particle collector system and wear collection process for automotive brake systems - Google Patents
Wear particle collector system and wear collection process for automotive brake systems Download PDFInfo
- Publication number
- GB2586609A GB2586609A GB1912329.8A GB201912329A GB2586609A GB 2586609 A GB2586609 A GB 2586609A GB 201912329 A GB201912329 A GB 201912329A GB 2586609 A GB2586609 A GB 2586609A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wear
- filter
- brake
- wear particle
- collectors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002245 particle Substances 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims description 15
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 230000005484 gravity Effects 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/0031—Devices for retaining friction material debris, e.g. dust collectors or filters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A wear particle collector system for an automotive brake system comprising a brake disc 1, a brake calliper 2, and a brake pad 3. The collector system comprises a vacuum unit 9, two wear particle collectors 4 which receives wear particles generated by friction between the brake pad 3 and brake disc 1. Collectors 4 extend from one radial side of the disc 1 to the other radial side of the disc 1 and placed up and down the brake calliper 2. A pipe 8 connects the vacuum unit 9 and the particle collectors 4 so that the vacuum unit 9 sucks wear particles from the collectors through a filter (6, fig 5) mounted in a filter case 5 having an evacuation/drain valve 7. In case of liquid infiltrated in the wear particle collector system, the liquid flows through the pipe 8 with air and wear particles. Under gravity the liquid towards the drain valve 7 which, when activated (e.g. electronically), discharges the liquid when a specified amount is collected. If the filter (6) gets wet the liquid is drained, via gravity, through drain slots (5a)
Description
Description
Wear particle collector system and wear collection process for automotive brake systems The present invention relates to a wear particle collector system and a wear collection process for automotive brake systems.
Brake wear can be a significant particulate matter (PM) contributor, particularly within areas with high traffic density and braking frequency. Studies mention that in urban environments, brake wear can contribute up to 55% by mass to total non-exhaust traffic-related PM10 emissions and up to 21% by mass to total traffic-related PM10 emissions, while in freeways, this contribution is lower due to lower braking frequency.
Patent prior art particle filter technology is published e.g. under DE102004054112A1, US7963376B2, DE202005017472U1, DE202007000246U1, DE102008029504B4, EP2350490A2, US8544615B2, US2011214568A1, JP535997482, DE102010053879A1, JP2012081931A, DE102012022886A1, DE102013215251A1 and, moreover this last but not least by the applicant under US10072716B2, that discloses a method and a device for capturing particles ejected by friction braking elements of a braking system with disc brakes of a vehicle. Anyway, the published particle collection technology is subject for technological improvement.
The technical problem to be solved, in this context, is to avoid the reducing of brake efficiency e.g. due to fading, malfunction, brake down, and ultimately to improve the cooling efficiency of the automotive disc brake systems.
Therefore, the objective of the invention is to solve the deficiencies of the mentioned prior art by providing a wear particule collector system for automotive brake systems.
This objective is achieved according to the invention by means of the technical characteristics mentioned in the independent claims, namely a wear particle collector system for automotive brake systems and a wear collection process therefor.
Further advantageous embodiments are the subject matter of the dependent claims.
A first subject-matter of the present invention is a wear 15 particle collector system in an automotive brake system having brake disc, brake caliper and brake pad. The wear particle collector system comprises: -a vacuum unit; - wear particle collectors provided to receive wear particles generated by friction between brake pad and brake disc, the collectors extending from one radial side of the brake disc to the other radial side of the brake disc, partially enveloping the brake disc and placed up and down the brake caliper; -a pipe having one end connected to the suction unit and another end connected to the wear particle collectors and interconnecting the wear particle collectors, whereby the vacuum unit is operative to suck wear particles from the wear particle collectors through the pipe; -and a filter connected to the pipe between the wear particle collectors and the vacuum unit for collecting the wear particles, provided with a filter case and an evacuation valve.
In providing a suitable solution the present invention improves the drawbacks of prior art wear particle systems especially for the following features: - the filter system functionality is not affected under wet 5 road conditions; - easy and separate change of spare parts e.g. wear particle filter is a bonus.
A second subject-matter of the invention is a wear collection 10 process therefor.
According to invention, it is provided a wear collection process performed by means of a wear particle collector system comprising a vacuum unit, a wear particle collector, a pipe and a filter with drain slots, an evacuation valve and a filter's case, the process comprising: - fixedly mounting wear particle collector on brake disc by means of fixture parts; - when wear particles are generated from friction between brake disc and brake pads, wear particle collector collects them by means of the suction created by the vacuum unit and transfers them through the filter's case to the filter; - in case of liquid infiltrated in the wear particle collector system, the liquid flows through the pipes and through the filter case towards the evacuation valve.
Major advantages of the present invention are available as follows: -reducing the amount of brake dust particles in the breathable air; - better cooling on brakes due to suction of the hot air; - the possibility of recycling filters; - the possibility of setting the suction power, which means less power consumption on open road; - filter's case design makes brake dust collection possible in any weather conditions; -less to none brake dust on wheels which results in better looking of the car overall and easier to maintain the car clean.
Further special features and advantages of the present inven10 tion can be taken from the following description of advantageous embodiments by way of the accompanying drawings.
- Fig. 1 is a schematic view of a wear particle collector system, according to invention; -Fig. 2 shows a schematic side view of the wear particle collector mounted on a brake disc; - Fig. 3 illustrates another schematic side view of the wear particle collector; - Fig. 4 shows further details of the wear particle collec-for system; - Fig. 5 shows a fluidic drain process within the wear particle collector system, according to invention.
Referring now to Figure 1, it is shown a schematic view of a wear particle collector system A, wherein particle collector system A is incorporated in a car's braking system comprising brake discs 1, brake calipers 2 and brake pads 3. More specifically, according to this embodiment, the wear particle collector system A is distributed into units Al and A2 attached to brake discs 1.
Figure 2 shows a detailed view of a distributed unit Ai, where i is an integer number, 1 = 1, 2. As shown schematically in Figure 2, the wear particles are collected by wear particle collectors 4 that partially envelope the brake disc 1, extending from one radial side to the other radial side of the brake disc 1. Wear particle collectors 4 are also placed up and down the brake caliper 2, without covering it. This placement gives the advantage of collecting as much wear particle e.g. brake dust as possible. Wear particle collectors 4 are interconnected by means of a pipe 8.
Figure 3 shows another side view of the distributed unit Al, wherein are shown further details the construction of the wear particle collectors: by closely enveloping the brake disc 1, they reduce the amount of remaining (not collected) brake dust. Wear particle collected are transported to a filter case 5 that accommodates a filter 6 and is provided with a fluid evacuation valve 7. Pipes 8 transport the collected brake dust sucked by a vacuum unit 9, for example a fan driven by an electric motor (not shown as such). Wear particle collectors 4 are mounted on brake caliper 2 by fixture parts 10.
Figure 4 shows further details of filter case 5, which is designed to be suitable for more types of filters (interchangeable). Also, by adding drain slots 5a and the evacuation valve 7, water infiltration is taken into consideration and evacuated from the system. Such fluid evacuation valve may be de-signed as a normally closed check valve. Evacuation valve actuation may use electric, electronic and or electro-mechanic valve actuator systems.
Figure 5 shows a fluidic drain process with the evacuation 30 valve 7. Valve 7 may be situated so that natural gravity or fluid weight may improve or accomplish the valve evacuation process.
This invention is based on the vacuum cleaner principle. Based on this, when the brakes are used and brake dust is generated from friction between brake disc 1 and brake pads 3, wear particle collectors 4 collect it and transfers it through the pipes 8 to the filter's case 5, then through the filter 6 itself, which cleans the air. If there is water infiltration, water flows through the pipes, along the filter's case, and being heavier than air, goes under the filter 6, as shown. When a specified amount of water is collected, the evacuation valve 7, controlled by a spring, evacuates the water. If the filter 6 gets wet, all the water is gravitationally evacuated through the drain slots 5a.
However, while certain embodiments of the present invention have been described in detail, those familiar with the art to which this invention relates will recognize various alternative designs and embodiments for practicing the invention as defined by the following claims.
List of reference signs A Wear particle collector system Al, A2, Ai Distributed units 1 Brake disc 2 Brake caliper 3 Brake pad 4 Wear particle collectors Filter case 5a Drain slots 6 Filter 7 Evacuation valve 8 Pipe 9 Vacuum unit 10 Fixture part
Claims (8)
- Patent claims 1. Wear particle collector system for collecting wear particles in an automotive brake system having a brake disc, a brake caliper and a brake pad for engaging the brake disc, comprising: -a vacuum unit; - two wear particle collectors provided to receive wear particles generated by friction between brake pad and brake disc, the collectors extending from one radial side of the brake disc to the other radial side of the brake disc, partially enveloping the brake disc and placed up and down the brake caliper; -a pipe having one end connected to the suction unit and another end connected to the wear particle collectors and interconnecting the wear particle collectors, whereby the vacuum unit is operative to suck wear particles from the wear particle collectors through the pipe; -and a filter connected to the pipe between the wear particle collectors and the vacuum unit for collecting the wear particles, provided with a filter case and an evacuation valve.
- 2. Wear particle collector system according to claim 1, wherein the filter has an interchangeable filter case.
- 3. Wear particle collector system according to claim 1, wherein the filter has drain slots.
- 4. Wear particle collector system according to claim 1, wherein the vacuum unit communicates with multiple wear particle collectors.
- 5. Wear particle collector system according to claim 1, wherein the evacuation valve is electrically, electronically or electromechanically actuated.
- 6. Wear collection process, performed by means of a wear particle collector system comprising a vacuum unit, wear particle collectors, a pipe and a filter with drain slots, a drain valve and a filter's case, the process comprises: -when wear particles are generated from friction between brake disc and brake pads, the wear particle collectors collect them and transfers them through the filter's case to the filter, characterized by that, in case of liquid infiltrated in the wear particle collector system, the liquid flows through the pipes and through the filter case towards the drain valve.
- 7. Wear collection process according to claim 6, characterized by that when a specified amount of liquid is collected, the drain valve discharges the liquid.
- 8. Wear collection process according to claim 7, characterized by that, in case the filter gets wet, all the liquid is gravitationally drained through the drain slots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1912329.8A GB2586609B (en) | 2019-08-28 | 2019-08-28 | Wear particle collection process for automotive brake systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1912329.8A GB2586609B (en) | 2019-08-28 | 2019-08-28 | Wear particle collection process for automotive brake systems |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201912329D0 GB201912329D0 (en) | 2019-10-09 |
| GB2586609A true GB2586609A (en) | 2021-03-03 |
| GB2586609B GB2586609B (en) | 2021-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1912329.8A Active GB2586609B (en) | 2019-08-28 | 2019-08-28 | Wear particle collection process for automotive brake systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2586609B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117191421B (en) * | 2023-08-29 | 2024-07-12 | 中汽研汽车检验中心（天津）有限公司 | Device and method for brake wear particulate emissions testing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1837066A2 (en) * | 2006-03-22 | 2007-09-26 | Terzo Saviane | Device for suppressing fine particles, particularly for a vehicle |
| EP3369959A1 (en) * | 2015-10-30 | 2018-09-05 | Akebono Brake Industry Co., Ltd. | Disc-brake device |
-
2019
- 2019-08-28 GB GB1912329.8A patent/GB2586609B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1837066A2 (en) * | 2006-03-22 | 2007-09-26 | Terzo Saviane | Device for suppressing fine particles, particularly for a vehicle |
| EP3369959A1 (en) * | 2015-10-30 | 2018-09-05 | Akebono Brake Industry Co., Ltd. | Disc-brake device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201912329D0 (en) | 2019-10-09 |
| GB2586609B (en) | 2021-11-17 |
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