EP4473225A1 - Radbremsscheibe für schienenfahrzeuge - Google Patents
Radbremsscheibe für schienenfahrzeugeInfo
- Publication number
- EP4473225A1 EP4473225A1 EP23702418.7A EP23702418A EP4473225A1 EP 4473225 A1 EP4473225 A1 EP 4473225A1 EP 23702418 A EP23702418 A EP 23702418A EP 4473225 A1 EP4473225 A1 EP 4473225A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brake disc
- round
- annular rib
- wheel brake
- wheel
- 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.)
- Pending
Links
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
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/123—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting
- F16D65/124—Discs; Drums for disc brakes comprising an annular disc secured to a hub member; Discs characterised by means for mounting adapted for mounting on the wheel of a railway vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T5/00—Vehicle modifications to facilitate cooling of 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
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
-
- 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
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
-
- 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
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/1304—Structure
- F16D2065/1328—Structure internal cavities, e.g. cooling channels
-
- 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
- F16D65/02—Braking members; Mounting thereof
- F16D2065/13—Parts or details of discs or drums
- F16D2065/134—Connection
-
- 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
- F16D65/78—Features relating to cooling
- F16D2065/788—Internal cooling channels
Definitions
- the invention relates to a wheel brake disc for rail vehicles according to the preamble of claim 1.
- Such a wheel brake disc of rail vehicles is usually attached to a wheel body of a rail wheel.
- FIG. 3 shows a schematic top view of a rear side R of a friction disk 2a, 2b of the wheel brake disk 2 according to FIGS. 1 to 2 according to the prior art.
- the wheel brake disc 2 has two friction discs 2a, 2b with a respective friction surface RF.
- fastening domes 4 distributed regularly over a diameter, protrude with a respective bearing surface AF and a respective through hole 4a parallel to the direction of the axis 1b.
- the two friction disks 2a, 2b are clamped together against a wheel disk or against the web 1a of the wheel body 1 with fastening elements 4b, here through-bolts which extend through the through-holes 4a.
- Twisting of the friction discs 2a, 2b on the wheel disc or on the web 1a is usually prevented by radially arranged sliding blocks (not shown) in radial grooves 19. These also absorb all forces on the wheel disc in the tangential direction, such as the frictional force between the brake pad (not shown, but easy to imagine) and the friction disc 2a, 2b and transfer them to the wheel body 1 of the associated wheel.
- the wheel brake disc 2 is provided with cooling fins 3, which increase the cooling surface in cooling channels K between the cooling fins 3 and between the cooling fins 3 and the dome 4 and at the same time have a high ventilation effect when the wheel brake disc 2 rotates, which generally leads to a high and effective cooling effect.
- the ventilation effect of the cooling ribs 3 ventilates the air, which is sucked into the cooling ducts K through air inlets 7 at a respective inner diameter 5 of the friction disks 2a, 2b and, as a result of the centrifugal force caused by rotation, as air flows 7a at an outer diameter 6 of the cooling duct or the Friction disc 2a, 2b exits radially through air outlets 8 as air flow 8a.
- FIG. 3 This is shown in FIG. 3 together with a distribution of the cooling fins 3 and fastening domes 4 on the rear side R of the friction disk 2a, 2b.
- the cooling ribs 3 run essentially in the radial direction from the inner diameter 5 to the outer diameter 6 .
- the cooling ribs 3 are divided into two parts by the respective fastening dome 4 .
- the cooling fins 3 are arranged with contact surfaces for contact with the web 1a.
- the attachment domes 4 with contact surfaces are also arranged on a medium diameter for contact with the web 1a.
- FIGS. 4 and 5 Further examples of friction disks 2a, 2b with different cooling fins 3, 3a-3e from the prior art are shown in FIGS. 4 and 5.
- the cooling fins 3 extend in a straight line in the radial direction of the friction disk 2a, 2b and are not interrupted by the fastening domes 4.
- FIG. 5 shows cooling fins 3a-3e, which are distributed as circular arc sections with different arc lengths on five coaxial circles between the inner diameter 5 and the outer diameter 6 of the friction disk 2a, 2b.
- FIG. 6 shows a schematic perspective view of a shaft brake disk 2 according to the prior art, which has what are known as round webs 9 .
- FIG. 7 shows a partial detail of the shaft brake disk 2.
- the round ribs 9 here have a double-cone shape, the smaller diameters of which are arranged in the middle of each round rib 9.
- Air outlets 8 for the exiting air flows 8a form gaps SP and are each formed by two round webs 9 between the friction discs 2a, 2b on their outer diameters 6, with a length of the gap SP being the distance between the rear sides R of the friction discs 2a, 2b.
- One idea of the invention is that the surface of the friction disc in the cooling channel is maximized and at the same time the air conveying effect of these surface-enlarging elements is kept low.
- a wheel brake disk according to the invention comprises at least two friction disks, which are arranged on both sides of a web of a wheel body of a rail wheel and are fastened by means of fastening elements, the at least two friction disks having cooling ribs and fastening domes, the fastening elements extending through the fastening domes of both friction disks and the bridge.
- the at least two friction disks have round webs and at least one annular rib as cooling ribs.
- the wheel brake disk according to the invention thus has the advantage of a combination of design features.
- the ventilation of the air, which is sucked into the cooling channel at the inner diameter of the friction disc and exits radially at the outer diameter of the cooling channel as a result of the centrifugal force caused by rotation, is throttled and at the same time it is advantageous that the ventilated amount of air efficiently cools the friction disc, which is heated during braking.
- the surface of the friction disc in the cooling channel can be maximized by means of the round webs, while at the same time the air conveying effect of these surface-enlarging elements can be kept low.
- the round ridges are arranged on circles with different diameters on the at least two friction discs, with the at least one annular rib being arranged as a circumferential annular rib on a circle with a diameter which lies on an outer diameter of each of the at least two friction discs.
- these round webs cause a turbulence in the radially flowing air, which, with regard to the amount of air conveyed, generates a very efficient thermodynamic heat transfer to the turbulent air flow generated in this way.
- the annular rib was chosen for the advantageous throttling of the conveyed air volume. At the same time, the annular rib offers the further advantage that it also causes a further enlargement of the cooling surface in the cooling channel.
- a further embodiment provides that the at least two friction disks have further round webs which are connected by the annular rib. This is advantageous because the cooling surface is increased and the annular rib is also stiffened.
- the round webs connected by the annular rib are arranged at regular angular distances from one another, the angular distance having an angular value in the range of 3° to 15°, preferably 5° to 10° or preferably 5°. This results in an advantageous stable structure.
- the round webs connected by the annular rib can have a circular-cylindrical cross-section in order to enable an advantageous simple construction.
- other cross sections are also conceivable.
- the round webs connected by the annular rib protrude further in axial length from a rear side of the friction disk than the annular rib by a certain, previously definable amount. In this way, the air outlet can be advantageously influenced.
- a respective section of the annular rib forms an opening section as a gap for an air outlet between two round webs and the web of the wheel body to be assigned.
- the main function lies in the formation of a gap between the friction discs and the web of the rail wheel. This gap at the air outlet from the cooling channel can Can be made wider or narrower depending on the needs of different projects.
- the round webs which are connected by the annular rib, each have bearing surfaces for resting on the web of the wheel body to be assigned. This results in an advantageously stable structure.
- first circular ribs have bearing surfaces for resting on the rib of the wheel body to be assigned, with the second and third circular ribs being designed to be a certain amount shorter than the first circular ribs in the axial direction, it is advantageous that a stable structure with air conveyance and turbulence of the air flows is possible are.
- the first circular webs which have the bearing surfaces, are arranged on a first circle with a first diameter, the first circle lying on an inner diameter of the respective friction disk.
- the round bars have a conical shape, the largest diameter of which is located on the surface of the rear side of the at least two friction disks. In this way, the conveying of air and the turbulence of the air flows can be advantageously influenced
- FIG. 1 shows a schematic plan view of a rear side of a friction disk of the wheel brake disk according to FIGS. 1 to 2 according to the prior art;
- Figure 4-5 schematic plan views of wheel brake discs according to the prior art
- FIG. 6-7 schematic views of a shaft brake disc according to the prior art
- FIG. 8-9 schematic perspective views of a rear side of a friction disk of a wheel brake disk according to the invention.
- FIG. 10 shows a schematic partial detail of a schematic radial sectional view of a wheel body with the wheel brake disc according to the invention according to FIGS. 8-9;
- FIG. 11 shows a schematic partial side view of the wheel brake disc according to the invention according to FIGS. 8-10.
- Figure 8 shows a schematic perspective view of a rear side R of a friction disk 2a, 2b of a wheel brake disk 2 according to the invention.
- Figure 9 shows an enlarged partial section of the friction disk 2a, 2b according to Figure 8.
- Figure 10 is a schematic partial section of a schematic radial sectional view of a wheel body 1 with the wheel brake disc 2 according to the invention is shown.
- FIG. 11 shows a schematic partial side view of a friction disc 2a, 2b of the wheel brake disc 2 according to the invention according to FIGS. 8 to 10.
- the friction disk 2a, 2b in FIG. 8 is divided into four circles with diameters 14, 15, 16, 17 in the radial direction for a better overview and is delimited by the inner diameter 5 and the outer diameter 6.
- the smallest diameter is the inner diameter 5 and then the four diameters 14, 15, 16, 17 follow in ascending order up to the outer diameter 6.
- the first circle with the first diameter 14 lies on the inner diameter 5.
- Circular sectors 20, 20a are distributed over the friction disk 2a, 2b, of which only two are designated here as examples.
- Each circular sector 20, 20a is defined by two imaginary radial dividing lines.
- a fastening dome 4 of a number of twelve fastening domes 4, which is an example here, is arranged on each dividing line.
- An angle between two dividing lines of each circular sector 20, 20a is 30° here.
- the circular sectors 20, 20a differ first of all in that radial grooves 19 are arranged between the 4 in the circular sectors 20a.
- the fastening domes 4 are arranged at equal angular distances from one another on a diameter 18 which is approximately an average diameter of the friction disk 2a, 2b.
- the round webs 10, 10a, 10b are attached or formed on the circles with the different diameters 14, 15, 16, 17 on the back R of the friction disc 2a, 2b. They protrude in the axial direction from the rear side R of the friction disc 2a, 2b.
- First round ridges 10 are arranged on the first diameter 14, second round ridges 10a on the second diameter 15 and third round ridges 10b on the third diameter 16.
- the first round webs 10 are arranged on the first diameter 14 in the circle sectors 20 in groups of three and in the circle sectors 20a in groups of two.
- the second round webs 10a are present in the second diameter 15 only in the circular sectors 20 between two fastening domes 4 .
- the third circular webs 10b are arranged in groups of three in the circle sectors 20 and in groups of two in the circle sectors 20a.
- the round webs 10, 10a, 10b here have a conical shape, the largest diameter of which is located on the surface of the rear R.
- the axial lengths of the round webs 10, 10a, 10b are of different lengths here.
- the first round webs 10 have contact surfaces AF with which they rest against the web 1a of the wheel body 1 .
- the second and third circular webs 10a, 10b are shorter than this and have a distance between their tops and the web 1a. This can be seen in FIG. 11.
- An annular rib 12 was selected for throttling the amount of air conveyed, which is arranged circumferentially on the fourth diameter 17 close to the outer diameter 6 of the friction disk 2a, 2b.
- the annular rib 12 has an outside 12a facing the outer diameter 6 and an inside 12b.
- the annular rib 12 connects a number of round webs 11 which have a circular-cylindrical cross-section.
- there are sixty-six round ridges 1 1 one round ridge 1 1 being left out in each of the circular sectors 20a because of the radial groove.
- the round bars 1 1 are arranged at regular angular distances from one another.
- the angular spacing between the round webs is 5°.
- the angular distance can have an angular value which is in a range of, for example, 3° to 15°, preferably 5° to 10°.
- the round ridges 11 are axially longer to a certain extent, which is predetermined, further from the rear side R of the friction disc 2a, 2b than the annular rib 12 and each have contact surfaces AF to rest against the ridge 1a. In this way, a respective section of the annular rib 12 forms an opening section 13 between two round webs 11 and the web 1a.
- This annular rib 12 in turn also causes a further enlargement of the cooling surface in the cooling channels K, the main function being the formation of a gap SP between the friction disks 2a, 2b and the web 1a of the wheel body 1.
- This gap SP can be clearly seen in FIG. 10.
- the gap SP is the distance between the opening section 13 of the annular rib 12 between two round webs 11 at the air outlet 8 from the cooling channel K and can be made wider or narrower depending on the needs of different applications.
- the throttling of the air quantity or air flow 7a is shown in FIG. 9 on an enlarged scale.
- the air flow 7a from the air inlet 7 flows against the annular rib 12 and is on the one hand deflected axially upwards via the annular rib 12 through the opening section 13 as an air flow 8a into the air outlet 8 .
- the air flow 7a is divided tangentially to the left and right into further air flows 8b when it hits the inside 12b of the annular rib 12 .
- the wheel brake disc 2 has a low fan power loss as a result of air ventilation in the area of the cooling channel K between the friction disc 2a, 2b and the wheel body 1 with the highest possible cooling effect of the friction disc 2a, 2b.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022102204.8A DE102022102204B4 (de) | 2022-01-31 | 2022-01-31 | Radbremsscheibe für Schienenfahrzeuge |
| PCT/EP2023/051854 WO2023144237A1 (de) | 2022-01-31 | 2023-01-26 | Radbremsscheibe für schienenfahrzeuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4473225A1 true EP4473225A1 (de) | 2024-12-11 |
Family
ID=85132937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23702418.7A Pending EP4473225A1 (de) | 2022-01-31 | 2023-01-26 | Radbremsscheibe für schienenfahrzeuge |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250027549A1 (de) |
| EP (1) | EP4473225A1 (de) |
| JP (1) | JP7814526B2 (de) |
| CN (1) | CN118632993A (de) |
| DE (1) | DE102022102204B4 (de) |
| WO (1) | WO2023144237A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3413843A1 (de) * | 1984-04-12 | 1985-10-17 | Knorr-Bremse GmbH, 8000 München | Befestigungsanordnung fuer bremsscheiben, insbesondere fuer schienenfahrzeuge |
| EP2469117B1 (de) * | 2010-12-23 | 2015-12-02 | Brembo SGL Carbon Ceramic Brakes GmbH | Innengekühlter Bremsscheibenrotor |
| FR2974555B1 (fr) | 2011-04-27 | 2014-03-28 | Afe Metal | Disque de frein ferroviaire |
| US10408291B2 (en) * | 2013-12-20 | 2019-09-10 | Siemens Mobility GmbH | Brake disk comprising cooling elements |
| KR101863471B1 (ko) * | 2014-02-12 | 2018-05-31 | 신닛테츠스미킨 카부시키카이샤 | 브레이크 디스크가 부착된 철도 차륜 |
| KR102102300B1 (ko) * | 2015-12-08 | 2020-04-20 | 닛폰세이테츠 가부시키가이샤 | 철도 차량용 브레이크 디스크 |
| US10619689B2 (en) * | 2016-12-12 | 2020-04-14 | Westinghouse Air Brake Technologies Corporation | Ventilated brake disc |
| IT201800002652A1 (it) * | 2018-02-13 | 2019-08-13 | Freni Brembo Spa | Fascia di frenatura di un disco per freno a disco di tipo ventilato |
| JP7373910B2 (ja) * | 2019-03-28 | 2023-11-06 | 株式会社栗本鐵工所 | ブレーキディスク |
| JP7665385B2 (ja) * | 2021-04-02 | 2025-04-21 | ナブテスコ株式会社 | ブレーキディスク付き車輪およびブレーキディスク |
-
2022
- 2022-01-31 DE DE102022102204.8A patent/DE102022102204B4/de active Active
-
2023
- 2023-01-26 WO PCT/EP2023/051854 patent/WO2023144237A1/de not_active Ceased
- 2023-01-26 JP JP2024545228A patent/JP7814526B2/ja active Active
- 2023-01-26 CN CN202380018945.3A patent/CN118632993A/zh active Pending
- 2023-01-26 EP EP23702418.7A patent/EP4473225A1/de active Pending
-
2024
- 2024-07-28 US US18/786,534 patent/US20250027549A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP7814526B2 (ja) | 2026-02-16 |
| CN118632993A (zh) | 2024-09-10 |
| WO2023144237A1 (de) | 2023-08-03 |
| US20250027549A1 (en) | 2025-01-23 |
| JP2025504582A (ja) | 2025-02-12 |
| DE102022102204A1 (de) | 2023-08-03 |
| DE102022102204B4 (de) | 2024-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1876369B1 (de) | Reibscheibe für eine nasslaufende Kupplung für ein Fahrzeug | |
| EP1900962B1 (de) | Belüftete Bremsscheibe | |
| DE69622422T2 (de) | Innenbelüftete bremsscheibe | |
| DE102013225538B4 (de) | Bremsscheibe mit Innenbelüftung | |
| EP2198179B1 (de) | Innenbelüftete bremsscheibe für scheibenbremsen | |
| DE69506303T2 (de) | Rotor für Querstromlüfter | |
| DE4220728C2 (de) | Innenbelüftete Scheibenbremse | |
| EP2771581B1 (de) | Axialventilatorrad | |
| DE102004056645B4 (de) | Innenbelüftete Bremsscheibe | |
| DE4131519A1 (de) | Gewichtsverminderter bremsenrotor | |
| WO2009003659A2 (de) | Bremsscheibe mit kühlrippen | |
| EP4473225A1 (de) | Radbremsscheibe für schienenfahrzeuge | |
| WO2015007494A1 (de) | Rotor für eine thermische strömungsmaschine | |
| DE69723443T2 (de) | Scheibenbremsrotor | |
| EP2826957A1 (de) | Rotor für eine thermische Strömungsmaschine | |
| DE69704339T2 (de) | Belüftete bremsscheibe mit schwingungsunterdrückung | |
| DE102005033352A1 (de) | Innenbelüftete Bremsscheibe | |
| DE102013209011A1 (de) | Integriertes Kühlsystem für eine trockene Doppelkupplung eines Doppelkupplungsgetriebes | |
| EP3246590B1 (de) | Nutzfahrzeugbremsscheibe und bremssystem | |
| DE10017512A1 (de) | Ringlamelle für flexible Wellenkupplungen, aus solchen Ringlamellen gebildetes Lamellenpaket und flexible Wellenkupplung mit solchen Ringlamellen | |
| DE102019132721A1 (de) | Innenbelüftete Bremsscheibe | |
| DE102019120574A1 (de) | Kühlleistungsoptimierte, laufrichtungsungebundene Bremsscheibe mit Innenkühlung | |
| DE102014222648B4 (de) | Bremsscheibe mit Innenbelüftung | |
| WO2025002654A1 (de) | Reibring für eine radbremsscheibe und radbremsscheibe für ein schienenfahrzeug | |
| DE69711300T2 (de) | Belüftete Bremsscheibe mit Führungsrippen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20240902 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20250618 |