FR3120103A1 - BRAKING DEVICE WITH RECOVERY OF MAGNETIC PARTICLES ON BRAKING WITH OPTIMIZED CHANNELING OF SAID MAGNETIC PARTICLES - Google Patents
BRAKING DEVICE WITH RECOVERY OF MAGNETIC PARTICLES ON BRAKING WITH OPTIMIZED CHANNELING OF SAID MAGNETIC PARTICLES Download PDFInfo
- Publication number
- FR3120103A1 FR3120103A1 FR2101773A FR2101773A FR3120103A1 FR 3120103 A1 FR3120103 A1 FR 3120103A1 FR 2101773 A FR2101773 A FR 2101773A FR 2101773 A FR2101773 A FR 2101773A FR 3120103 A1 FR3120103 A1 FR 3120103A1
- Authority
- FR
- France
- Prior art keywords
- braking
- pad
- brake
- magnetic particles
- reservoir
- 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
- 239000006249 magnetic particle Substances 0.000 title claims abstract description 16
- 230000005465 channeling Effects 0.000 title abstract 2
- 238000011084 recovery Methods 0.000 title 1
- 239000002245 particle Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000002783 friction material Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 230000003313 weakening effect Effects 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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
-
- 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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
-
- 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
L’invention concerne un système de freinage adapté pour collecter des particules magnétiques (Pm) émises lors d’un freinage, comportant un étrier (1) supportant des plaquette de freinage qui comportent une plaque de support (31) et une couche de friction (32), ledit étirer (1) comportant un piston (4) comportant un réservoir (41) ouvert en direction des plaquette de freinage et un réservoir additionnel (5) comportant un réservoir (51) ouvert en direction des plaquette de freinage, chaque réservoir (41, 51) comportant un aimant (61, 62), lesdites plaquette de freinage comportant des ouvertures (33) et des rainures (34) adaptées pour canaliser vers les réservoirs lesdites particules magnétiques (Pm), tel que chacune des deux plaquettes de freinage comporte une ouverture (33), chacune desdites deux ouvertures (33) étant respectivement positionnée en regard de chacun des deux aimants (61, 62) et lesdites ouvertures (33) présentant un diamètre compris entre 15mm et 25mm. Fig. 2The invention relates to a braking system suitable for collecting magnetic particles (Pm) emitted during braking, comprising a caliper (1) supporting braking pads which comprise a support plate (31) and a friction layer ( 32), said stretcher (1) comprising a piston (4) comprising a reservoir (41) open towards the brake pads and an additional reservoir (5) comprising a reservoir (51) open towards the brake pads, each reservoir (41, 51) comprising a magnet (61, 62), said braking pads comprising openings (33) and grooves (34) suitable for channeling said magnetic particles (Pm) towards the reservoirs, such that each of the two brake pads brake comprises an opening (33), each of said two openings (33) being respectively positioned opposite each of the two magnets (61, 62) and said openings (33) having a diameter of between 15mm and 25mm. Fig. 2
Description
La présente invention concerne un système de freinage de véhicule adapté pour collecter des particules magnétiques émises lors d’un freinage.The present invention relates to a vehicle braking system adapted to collect magnetic particles emitted during braking.
La présente invention concerne plus particulièrement un système de freinage de véhicule adapté pour collecter des particules magnétiques émises lors d’un freinage, ledit système de freinage comportant un étrier supportant une plaquette interne de freinage et une plaquette externe de freinage, lesdites plaquette de freinage comportant une plaque de support et une couche de friction, ledit étirer comportant un piston dans lequel est formé un réservoir qui est ouvert en direction de la plaque de support de ladite plaquette de freinage interne et un réservoir additionnel dans lequel est formé un réservoir qui est ouvert en direction de la plaque de support de ladite plaquette de freinage externe, dans chaque réservoir étant positionné un aimant adapté pour attirer au moins une partie desdites particules magnétiques, lesdites plaquette de freinage comportant des ouvertures et des rainures adaptées pour canaliser vers le réservoir lesdites particules magnétiques.The present invention relates more particularly to a vehicle braking system suitable for collecting magnetic particles emitted during braking, said braking system comprising a caliper supporting an internal braking pad and an external braking pad, said braking pad comprising a backing plate and a friction layer, said stretch comprising a piston in which a reservoir is formed which is open towards the backing plate of said inner brake pad and an additional reservoir in which a reservoir is formed which is open towards the support plate of said outer brake pad, in each reservoir being positioned a magnet adapted to attract at least a part of said magnetic particles, said brake pad having openings and grooves adapted to channel said particles towards the reservoir magnetic.
Un dispositif connu de récupération des particules émises par un tel système de freinage, présenté notamment par le document EP-A1-2309146 utilise des perçages réalisés sur les garnitures de freins.A known device for recovering the particles emitted by such a braking system, presented in particular by the document EP-A1-2309146, uses holes made on the brake linings.
Ces perçages traversent les garnitures pour conduire les particules émises entre le matériau de friction et une face du disque à une cavité arrière contenant un aimant.These holes pass through the linings to conduct the particles emitted between the friction material and one face of the disc to a rear cavity containing a magnet.
Les particules des matériaux de friction contenant des éléments métalliques et les particules métalliques des disques, sont attirées par l’aimant disposé à plat au fond de la cavité, parallèlement à la garniture, afin de s’accumuler dans cette cavité formant un réservoir pour éviter une dispersion dans l’air.The particles of the friction materials containing metallic elements and the metallic particles of the discs, are attracted by the magnet placed flat at the bottom of the cavity, parallel to the lining, in order to accumulate in this cavity forming a reservoir to avoid dispersion in the air.
Les ouvertures sont réparties le long des garnitures et présentent de petits diamètres d’ouverture pour ne pas trop perdre en surface de friction, mais de telles petites ouvertures peuvent facilement se boucher et ne plus permettre la collecte des particules.The openings are distributed along the linings and have small opening diameters so as not to lose too much friction surface, but such small openings can easily become clogged and no longer allow the collection of particles.
Le dispositif selon l’invention permet de remédier à ces inconvénients.The device according to the invention makes it possible to remedy these drawbacks.
Il comporte en effet, selon l’invention, un système de freinage de véhicule adapté pour collecter des particules magnétiques émises lors d’un freinage, ledit système de freinage comportant un étrier supportant une plaquette interne de freinage et une plaquette externe de freinage, lesdites plaquette de freinage comportant une plaque de support et une couche de friction, ledit étirer comportant un piston dans lequel est formé un réservoir qui est ouvert en direction de la plaque de support de ladite plaquette de freinage interne et un réservoir additionnel dans lequel est formé un réservoir qui est ouvert en direction de la plaque de support de ladite plaquette de freinage externe, dans chaque réservoir étant positionné un aimant adapté pour attirer au moins une partie desdites particules magnétiques, lesdites plaquette de freinage comportant des ouvertures et des rainures adaptées pour canaliser vers lesdits réservoirs lesdites particules magnétiques, tel que chacune des deux plaquettes de freinage comporte une ouverture qui traverse la plaque de support et la couche de friction, chacune desdites deux ouvertures étant respectivement positionnée en regard de chacun des deux aimants et lesdites ouvertures présentant un diamètre compris entre 15mm et 25mm.It comprises, according to the invention, a vehicle braking system adapted to collect magnetic particles emitted during braking, said braking system comprising a caliper supporting an internal braking pad and an external braking pad, said brake pad comprising a support plate and a friction layer, said stretch comprising a piston in which is formed a reservoir which is open towards the support plate of said internal brake pad and an additional reservoir in which is formed a reservoir which is open towards the support plate of said outer brake pad, in each reservoir being positioned a magnet adapted to attract at least a part of said magnetic particles, said brake pads having openings and grooves adapted to channel towards said reservoirs said magnetic particles, such as each of the two wafers s braking comprises an opening which passes through the support plate and the friction layer, each of said two openings being respectively positioned opposite each of the two magnets and said openings having a diameter of between 15mm and 25mm.
Selon une première caractéristique de l’invention, les ouvertures présentent un diamètre de 20mm.According to a first characteristic of the invention, the openings have a diameter of 20mm.
Selon une deuxième caractéristique de l’invention, les rainures sont formées uniquement dans la couche de friction.According to a second characteristic of the invention, the grooves are formed only in the friction layer.
Selon une troisième caractéristique de l’invention, la couche de friction comporte une bordure extérieure qui forme une paroi fermée et qui entoure l’ensemble des rainures.According to a third characteristic of the invention, the friction layer has an outer edge which forms a closed wall and which surrounds all of the grooves.
Selon une quatrième caractéristique de l’invention, la couche de friction de chaque plaquette de freinage comporte deux rainures qui forment deux boucles dont les deux extrémités débouchent dans ladite ouverture de chaque plaquette de freinage.According to a fourth characteristic of the invention, the friction layer of each brake pad comprises two grooves which form two loops, the two ends of which open into said opening of each brake pad.
Selon une cinquième caractéristique de l’invention, un tel système de freinage comporte un disque de frein qui est positionné entre la plaquette de freinage interne et la plaquette de freinage externe.According to a fifth characteristic of the invention, such a braking system comprises a brake disc which is positioned between the internal braking pad and the external braking pad.
Les dessins annexés illustrent l’invention :The accompanying drawings illustrate the invention:
Les figures 1 et 2 présentent un étrier de freinage 1 et un disque de frein 2 qui comporte deux faces de friction 21, l’étrier de frein 1 comportant deux plaquettes de freinage 3 où chaque plaquette de freinage 3 comporte une plaque de support 31 sur laquelle est fixée une couche de friction 32 et un piston 4 actionné par un fluide hydraulique sous pression qui est contenu dans une chambre de commande 11 de l’étrier de freinage 1; les deux plaquettes de freinage 3 sont positionnées avec leurs couche de friction 32 en regard du chacune des deux faces de friction 21 du disque de frein 2, avec une première partie 12 de l’étrier de frein 1 qui forme un support pour les deux plaquettes de freinage 3 de telle sorte que lorsque la pression du fluide hydraulique augmente dans la chambre de commande 11, le piston 4 est repousser en direction du disque de frein 2, entraînant, directement, dans son déplacement la couche de friction 32 d’une plaquette de freinage dite interne 3a et, indirectement, la couche de friction 32 d’une plaquette de freinage dite externe 3b contre chacune des deux faces de friction 21 du disque de frein 2 de manière à freiner la rotation du disque de frein 2.Figures 1 and 2 show a brake caliper 1 and a brake disc 2 which has two friction faces 21, the brake caliper 1 comprising two brake pads 3 where each brake pad 3 comprises a support plate 31 on which is fixed a friction layer 32 and a piston 4 actuated by a pressurized hydraulic fluid which is contained in a control chamber 11 of the brake caliper 1; the two brake pads 3 are positioned with their friction layers 32 opposite each of the two friction faces 21 of the brake disc 2, with a first part 12 of the brake caliper 1 which forms a support for the two pads brake 3 so that when the pressure of the hydraulic fluid increases in the control chamber 11, the piston 4 is pushed back in the direction of the brake disc 2, driving, directly, in its movement, the friction layer 32 of a pad inner brake pad 3a and, indirectly, the friction layer 32 of a so-called outer brake pad 3b against each of the two friction faces 21 of the brake disc 2 so as to brake the rotation of the brake disc 2.
La chambre de commande 11 de l’étrier de freinage 1 qui reçoit le fluide hydraulique sous pression est prolongée par une paroi latérale 13 qui guide en translation le piston 4, tout en assurant l’étanchéité de la chambre de commande 11.The control chamber 11 of the brake caliper 1 which receives the pressurized hydraulic fluid is extended by a side wall 13 which guides the piston 4 in translation, while ensuring the sealing of the control chamber 11.
Le piston 4 comporte une chambre 41 cylindrique ouverte en direction de la plaquette de freinage interne 3a, un fond 42 contre lequel s’exerce la pression de commande du fluide hydraulique sous pression de la chambre de commande 11 et une paroi latérale 43 qui coulisse le long de la paroi latérale 13 de la chambre de commande 11.The piston 4 comprises a cylindrical chamber 41 open in the direction of the internal braking pad 3a, a bottom 42 against which the control pressure of the pressurized hydraulic fluid of the control chamber 11 is exerted and a side wall 43 which slides the along side wall 13 of control chamber 11.
Un ensemble d’ouvertures 33 et de rainures 34 formées dans la plaquette de freinage interne 3a pour canaliser une partie des particules magnétiques Pmémises lors d’un freinage vers la chambre 41 du piston 4.A set of openings 33 and grooves 34 formed in the internal braking pad 3a to channel part of the magnetic particles P m emitted during braking towards the chamber 41 of the piston 4.
A l’extérieur de la plaquette de freinage externe 3b est formée dans l’étrier de freinage 1 une ouverture 14 dans laquelle est fixée un réservoir additionnel 5 comportant une chambre 51 cylindrique ouverte en direction de la plaquette de freinage externe 3b.Outside the outer brake pad 3b is formed in the brake caliper 1 an opening 14 in which is fixed an additional reservoir 5 comprising a cylindrical chamber 51 open in the direction of the outer brake pad 3b.
Un ensemble d’ouvertures 33 et de rainures 34 formées dans la plaquette de freinage externe 3b canalise une partie des particules magnétiques Pmémises lors d’un freinage vers la chambre 51 du réservoir additionnel 5.A set of openings 33 and grooves 34 formed in the outer braking pad 3b channels some of the magnetic particles P m emitted during braking towards the chamber 51 of the additional reservoir 5.
Dans la chambre 41 du piston 4 et dans la chambre 51 du réservoir additionnel 5 sont positionnés, respectivement, un premier aimant 61 et un second aimant 62.In chamber 41 of piston 4 and in chamber 51 of additional reservoir 5 are positioned, respectively, a first magnet 61 and a second magnet 62.
L’ouverture 33 formée dans chacune des deux plaquettes de freinage 3 traverse la plaque de support 31 et la couche de friction 32, en regard respectivement du premier aimant 61 et du second aimant 62.The opening 33 formed in each of the two brake pads 3 crosses the support plate 31 and the friction layer 32, facing respectively the first magnet 61 and the second magnet 62.
La
La couche de friction 32 de chaque plaquette de freinage 3 comporte une bordure extérieure 35 qui ferme latéralement un ensemble de rainures 34.The friction layer 32 of each brake pad 3 has an outer edge 35 which laterally closes a set of grooves 34.
Les rainures 34 sont essentiellement au nombre de deux par plaquette de freinage 3 et forment deux boucles, bordées latéralement par la bordure extérieure 35 et débutantes dans l’ouverture 33.The grooves 34 are essentially two in number per brake pad 3 and form two loops, bordered laterally by the outer edge 35 and starting in the opening 33.
Entre les rainures 34 et l’ouverture centrale 33, chaque plaquette de freinage 3 comporte deux blocs 36 sans ouvertures ni rainures qui permettent d’exercer une force de friction suffisante sur le disque de frein et notamment de supporte de fortes contraintes thermiques, pour freiner le véhicule.Between the grooves 34 and the central opening 33, each brake pad 3 comprises two blocks 36 without openings or grooves which make it possible to exert a sufficient friction force on the brake disc and in particular to support strong thermal stresses, to brake the vehicle.
L’ouverture 33 de chaque plaquette de freinage 3 et de forme circulaire et présente un diamètre compris entre 15mm et 25mm, avec une valeur préférentielle de 20mm pour permettre l’évacuation des particules magnétiques vers chacun des deux réservoirs sans risquer d’être bouché.The opening 33 of each braking pad 3 is circular in shape and has a diameter of between 15mm and 25mm, with a preferential value of 20mm to allow the evacuation of the magnetic particles to each of the two reservoirs without the risk of being clogged.
Une ouverture 33 trop grande diminuerait trop la surface de friction des plaquettes de freinage 3 et risquerait aussi de les fragiliser.
An opening 33 that is too large would reduce the friction surface of the brake pads 3 too much and would also risk weakening them.
Claims (6)
Braking system according to any one of the preceding claims, characterized in that it comprises a brake disc (2) positioned between the internal braking pad (3a) and the external braking pad (3b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2101773A FR3120103B1 (en) | 2021-02-24 | 2021-02-24 | BRAKING DEVICE WITH RECOVERY OF MAGNETIC PARTICLES ON BRAKING WITH OPTIMIZED CHANNELING OF SAID MAGNETIC PARTICLES |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2101773 | 2021-02-24 | ||
| FR2101773A FR3120103B1 (en) | 2021-02-24 | 2021-02-24 | BRAKING DEVICE WITH RECOVERY OF MAGNETIC PARTICLES ON BRAKING WITH OPTIMIZED CHANNELING OF SAID MAGNETIC PARTICLES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR3120103A1 true FR3120103A1 (en) | 2022-08-26 |
| FR3120103B1 FR3120103B1 (en) | 2023-05-26 |
Family
ID=75108619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR2101773A Active FR3120103B1 (en) | 2021-02-24 | 2021-02-24 | BRAKING DEVICE WITH RECOVERY OF MAGNETIC PARTICLES ON BRAKING WITH OPTIMIZED CHANNELING OF SAID MAGNETIC PARTICLES |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3120103B1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2309146A1 (en) | 2009-09-18 | 2011-04-13 | Fabrizio Lupica | Disk brake pad |
| FR3086023A1 (en) * | 2018-09-17 | 2020-03-20 | Psa Automobiles Sa | DEVICE FOR RECOVERING PARTICLES FROM THE BRAKING OF A MOTOR VEHICLE EQUIPPED WITH MAGNETS |
| WO2021021502A1 (en) * | 2019-07-31 | 2021-02-04 | Federal-Mogul Motorparts Llc | Vehicle brake component for collecting brake dust |
-
2021
- 2021-02-24 FR FR2101773A patent/FR3120103B1/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2309146A1 (en) | 2009-09-18 | 2011-04-13 | Fabrizio Lupica | Disk brake pad |
| FR3086023A1 (en) * | 2018-09-17 | 2020-03-20 | Psa Automobiles Sa | DEVICE FOR RECOVERING PARTICLES FROM THE BRAKING OF A MOTOR VEHICLE EQUIPPED WITH MAGNETS |
| WO2021021502A1 (en) * | 2019-07-31 | 2021-02-04 | Federal-Mogul Motorparts Llc | Vehicle brake component for collecting brake dust |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3120103B1 (en) | 2023-05-26 |
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Owner name: STELLANTIS AUTO SAS, FR Effective date: 20240423 |